Chevy Truck: Active Grille Shutter

In this video I fix a customers 2017 Chevy 1500 with the big 5.3 that had a code stored in it for "loss of communication with a device on the LIN bus" U1510. Lucky for us there is only one device on the LIN bus in the ECM and that is the active grille shutter. Easy peasy!
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Due to factors beyond the control of South Main Auto Repair, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. South Main Auto Repair assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. South Main Auto Repair recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of South Main Auto Repair, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained.

[@SouthMainAuto]

Just to clear some stuff up here is the description and operation of the active grille shutter right from GM service data: *DESCRIPTION AND OPERATION > ACTIVE GRILLE AIR SHUTTER DESCRIPTION AND OPERATION* The active grille air shutter system closes shutters in the front grille to enhance vehicle aerodynamics in driving situations where cooling and A/C loads are relatively low and high levels of front end airflow are not required. If high levels of airflow are required the active grille air shutter system will open one or both shutters. The control signal from the engine control module, ignition and ground circuits enable the active grille air shutter actuators to operate. If the conditions for opening the shutters are reached the engine control module commands the active grille air shutter actuators to open one or both shutters. The dual active grille air shutter system consists of two aero shutter mechanisms located in the front grille for controlling the amount of air entering the engine compartment. It includes three wires; ground, power and a Local Interconnect Network (LIN) Bus serial data circuit from the engine control module to the shutter actuator. The engine control module determines shutter state based on various vehicle conditions such as vehicle speed, coolant temperature, fan state, refrigerant system pressure, A/C compressor state and ambient temperature. The engine control module has the ability to command each shutter individually to the open or closed positions through communications on the LIN Bus. The actuators are powered by an ignition circuit that is active when the key is in the RUN position. The vehicle may have to be driven for up to 13 minutes at speeds greater than 41 km/h (25 mph) before a shutter begins to move. If low ambient temperature is detected, the shutters will remain in the closed position.

[@petermallow]

Wow, it does all that. Where can I get one for my 87 F150?

[@harrywalker5836]

airo what,,its a 4.5t truck, shaped like a box..im sure wind tunnel time created this..we use cardboard,,never fails..well, seeing tech is advancing,,in the next 6 months,,they,ll fix themselves..im in a 4x4 club,in aus..registered,not cowboy,,, all these new 4x4rs, out in the simpson desert, 1 sensor shts,,you die..its like death valley, but 400 times bigger..we carry fuel for at least 600 miles,, seems like all modern cars, everything shts around them, too much tech.. great work, vids, keep em coming..

[@2552]

so it's essentially a big blend door actuator to keep the bay cool?

[@MSB1080]

Oh boy how great. Pretty sure the snow plow/camper prep package removes those but can anyone confirm?

[@PandaMan02]

@@2552 its actually to help it get and stay warm during cold weather.

[@beaverc2884]

Back in my day an active grille air shutter was the process of people sticking part of a cut up K-mart box in front of the radiator and then removing the cardboard at the appropriate temp. 🙂

[@jp2246]

This comment is gold! Did this plenty back in the day, so true!

[@misterhat5823]

Kmart? That was a long time ago.

[@danieln.285]

EXACTLY! I live in NE Tennessee and I also drive a 1990 S10 Pickup. On the cold 20-30f mornings, I'll grab a long cardboard cut-out and lay it horizontal against the radiator. The fan will suck it and hold it against the core support and that'll help lessen airflow. Super useful for the older fan clutches!

[@SouthMainAuto]

This comment just makes me miss the big K. Ours had a cafeteria in it. Did yours? 😥

[@mconley600]

Yep mine always had the best cheeseburgers

[@CJ-Foygelo]

Man that little pneumatic ratchet is louder than my mother in law while fighting with my wife about what a mistake she made marrying me and just a little less annoying. However, it is quite useful to have around, so very much opposite my mother in law.

[@Mr2004MCSS]

LOL.

[@ashleysalgado7454]

Lol😂

[@johnz8210]

That was fun. I did one of those yesterday - almost put the new one on without the temp sensor. There's a little circuit board on the motor for this thing, full of corrosion. Not to worry - GM is saving their electrical sh*t that doesn't corrode for their upcoming EV's. Those will be trouble free.

[@johnmccallum8512]

🤣😁

[@MrPageplayer]

🤣😅🤣

[@stevejohnson1397]

GarbageMotors

[@williamallen7836]

The GM fires will be absolutely spectacular with the lithium batteries!

[@LesReeves]

With all manufactuers going electric every day will be bonfire day start buying your fireworks now LOL.

[@boblister665]

The bumper filler is easier to release bottom tabs by reaching up from below behind the bumper and pull down on the tabs. I had a 39 Packard with active grille shutters. They had a thermal spring in the top of the radiator with a rod going to shutter. The car was 40 years old when I got it and it still worked great. Now we need a computer to do it , Progress?

[@gliderp]

I maintain the floor mounted dimmer switch was perfectly fine. It's been downhill for autos since it was abandoned.

[@Ariccio123]

The computer can shut it on the highway too!

[@MacCready_]

I appreciate you showing me how to fix cars I'll never work on for all these years. Utterly fascinating.

[@davidgriffin14]

Shutterly fascinating!

[@jdelbrid]

@@davidgriffin14 Second from top comment.

[@AKChryslertech]

Lol i laughed out loud when you mentioned asking why they couldnt just call it, "loss of communication with active grill shutter." Its a valid question!

[@SouthMainAuto]

Right?!

[@mattbrown5511]

First rule of coding (computer programming) garbage in = garbage out.

[@themikeshow]

I like the way Trane used active shutters on old commercial condensing units, but it wasn't for aerodynamics, lol. They had shutters to control head pressure for cold weather operation (many large buildings need cooling in certain areas like communication rooms in the winter). The shutters were operated by a pneumatic cylinder pressurized by refrigerant from the discharge side of the compressor. So in cool weather the reduced refrigerant pressure allowed the cylinder to close the shutters to maintain a reasonable pressure. No damn sensors, no electric motors, no computers, just pure mechanical reliability. I just thought someone might find that interesting.

[@andrewslagle1974]

the active shutter is not for aero dynamics!

[@Frank-fz4tm]

Until that damn actuator started leaking!

[@themikeshow]

@@Frank-fz4tm That goes without saying, but the ones that I saw were at least 25 years old at the time. And times were different, adding freon at each inspection was considered normal maintenance. Up until the early 90s, we only fixed major leaks, after that we started fixing everything

[@iansinclair521]

The more I look at these newfangled critters, the better I like my 1970 C10

[@mbc1994]

This is like the mems hah. What my family thinks i do: rebuild engines, what the public think: brake jobs, what i actually do: spendihalf the day prying of poorly engineered pieces of plastic, hoping not to break the tabs.

[@kennethbrown1879]

It wont be long before the paint on the vehicle will cause your engine light to come on.

[@ashleysalgado7454]

😂 omg yes

[@randylewis6372]

You can put an 8mm socket on the white plastic fasteners that hold the fender trim piece. The socket will squeeze the tabs and the trim will pop free. I learned that trick from an old timer in a bodyshop.

[@joshwood241]

You all and the Rainman have inspired me to dedicate the next 10 years of my life accumulating enough pre '96 vehicles to last me the rest of my life. Then I'll never be forced to drive one of these computerized plastic monstrosities.

[@ashleysalgado7454]

😂❤ yessss

[@Goot449]

We've reached the day where a grille can cause an safety and/or emissions inspection failure (depending on your state and what each inspection covers).

[@squishy312]

Glad I live in a reality state where all that safety/emission crap isn't required. We even got rid of speed limits for a while. Not sure why they put them back though.

[@squishy312]

@Marty's 4x4 Sad, because it was actually safer than people being panicking about getting pulled over. I moved to WA before they put the speed limits back, and never knew why. Thanks for the info! I moved back here about 10 years ago due to medical reasons. WA is turning into California part 2...

[@jamespfitz]

​@Marty's 4x4 They did the same thing with the drinking age back in the 80s

[@vernowen2083]

@@squishy312 Feds said they would cut off all highway funding if they didn't. Just like they did here over the seatbelt law.

[@squishy312]

@@sunnydeng9263 No, most people don't. The idiots that do, are the ones that actually would get pulled over for something like that. The speed limit removal was on the highways and interstate, not in town. Even when it was removed, people could get tickets for weaving in and out of traffic and going way faster than the flow of traffic. Idiots who have no value of other people are the ones that are the problem with and without the laws. The law changes nothing then.

[@RobertHancock1]

I guess they felt the need to use that to improve aerodynamics and fuel economy. I would have thought that not making the front of the truck a flat wall 10 feet tall for no reason would be a better strategy, but apparently that's just inconceivable.

[@iaov]

I hate working on cars but I sure do enjoy watching you do so Eric.. thanks for the education and entertainment!!

[@midwestg4105]

OMG! More crap on a truck that we don't need. How about we go back to the late 60's/early 70's with a 350 or 454 engine; mechanical fuel pump; electronic ignition and simplicity!!!!! Maybe a later fuel injection system----but that's it!!

[@suttoncoldfield9318]

Back in the day, I had a 1974 Wartburg Knight. It had a grill shutter you could open/close in really cold weather to speed engine warmup. You pushed/pulled a little handle under the dash and a thin solid cable was connected to the grill.

[@johnh.8884]

Had this happen to me on my 18 Silverado. Driving in heavy rain storm, next day shutter failed. Split open bad motor and water dripped out. You could see where the circuit fried. I did apply sealant to seam on new motor. Couldn’t find motor only for purchase. Had to replace the whole shutter say.

[@Mountain-Man-3000]

They don't account for inclement weather in the design brief. Having to drive through weather is a "customer problem".

[@ccaamm1]

Check out the fuel pump control module located above the spare tire. No sealant on a tin boxes seams. It'll make you shake your head for sure with all the dirt and water that gets to it and in it.

[@workingshlub8861]

so if it fails in the closed position you are screwed.....ridiculous

[@Dartht33bagger]

I don't get the point of it. Why would you want to open/close the grill in the first place?

[@shawt7768]

Yeah this will definitely be the last GMC I purchase. What a pain for a useless part.

[@kenpecora7526]

Is the purpose of the fender flare to hold junk against the fender so it rusts out quicker??

[@SouthMainAuto]

Yes....

[@xander47117]

Question: Was the "aftermarket accessory wire" impeding the function of the shutters? Could that be the cause of the failure?

[@sammckinnon9494]

You know what Gmc stand for GIVE ME MORE CLIPS!!!!!.AS ALWAYS GREAT WORK AS USUALLY

[@JohnnyTalia]

My truck got totaled just before Xmas, and now I need to get another one. I'm sure not looking forward to dealing with junk like active grille shutters, or bluetooth floor mats, or satellite guided lug nuts, or any of that other supergizmo crap they put on newer vehicles. Maybe I can find an old square body somewhere...

[@josephchamberlain9129]

I appreciate your honesty regarding things you don’t understand or have never experienced. But you always stay focused and determined to get the job done and done very well. This is one of my favorite channels.

[@williamholcombe31]

Back again . Thanks my guy. It'S A CHEVEEE 👶 BABBY

[@dangerousmythbuster]

We know why mechanics drive Toyotas. Who wants to fix their own vehicle after working on GM junk all day?

[@milfordcivic6755]

Lol. When I was in my teens and 20s, I never understood why my father the mechanic hated working on his own car. After 8-10 hours of vehicles full of snow on the undercarriage dripping on him, cold tools, garage doors opening and letting the heat out all day, plus fighting with rusty junk....at 48 I can see why! I'm glad I never decided to follow in his career path!

[@chuckbrown617]

It's amazing how all though snap-together parts become so easily disassembled in the most minor of front end accidents. 😆

[@davidtucker3826]

Yea, the 450 dollar grille shutter for my dart... i hit a raccoon...

[@SpaceCadet4Jesus]

Should start making the front ends out of Legos.

[@ashleysalgado7454]

😂😂😂

[@bradhaines3142]

​@@SpaceCadet4Jesusthe patent license would be too expensive

[@InssiAjaton]

I suspect the difficulty with all the different fasteners might have something to do with the Collision Tests. A different thing - a memory actually - is that our second hand vehicle in my childhood had an actual roller blind in front of the heat exchanger. There was a cable brought to the cabin for controlling the height of the blind. If you wanted to adjust it, you had to slow down. Otherwise the blind was immobilized by the air pressure. By the way, it also had a manual crank for starting, as the 6 V battery was likely not to have enough muscle to turn over during the colder weather (more viscous oil). Those were the days, when everything was better and simpler, you know....

[@richardthomas1743]

I shudder to think what can be causing this!!

[@mark98070]

I can see these mechanisms freezing up all winter long

[@inothome]

NIce, a 28 minute repair video. 24 minutes of getting to the part and 4 min to replace part, including the uh oh, forgot the ambient temp sensor. They sure don't make 'em like the used to!!! And, for the most part, that is a great thing!!! Cars today achieve shit cars back when could only dream of (400+ HP and 30MPG, 200k on the odometer and still running, starts when cold every time no need to tell someone to pump the gas twice then start, etc....) BUT.... shit like this BS to take stuff apart is a total engineering fail. Then again, when you engineer to save on assembly costs, this is what you end up with.

[@KD0LRG]

Active grill, I just used a pizza box and it never failed. 🍺

[@toenails.]

That generation of GM trucks is the absolute worse truck ever built by GM. Best thing you can do is get rid of it and take the loss because it will nickel and dime you to death until your broke.

[@Ericsnowmobiler]

As a 23 year GM body technician, I can commiserate watching you take that apart. I get furious at the way things are put together now. I honestly can’t believe you got those flare clips out just by pulling and not have them break, I always squeeze them from behind. One thing that could have saved you a little aggravation is we leave the cover attached to the grille and save all those clips aggravation

[@SouthMainAuto]

I would but you have to remove the cover first to get to the bolts to remove the grill

[@brianlanglois4086]

Plastic junk, all of it, plastic junk....

[@RobertRobbins-lv9gz]

I always learn something new when I watch your videos

[@seastacker8582]

If I owned this thing, I can’t say I wouldn’t have been looking for creative ways to delete it and fool the computer somehow. These new vehicles are getting more ridiculous by the year.

[@oldjarhead1125]

You not only show us how to do it, you entertain us as well. Nice video...I have a '17 Silverado & just wait for that day it needs it's shutter replaced. Greetings from that Old Jarhead in WNC and yeah, they do inspections here.

[@NoName-zn1sb]

its

[@raviolisauce103]

I knew it was only a matter of time before this new technology failed.

[@jblyon2]

Especially on a Chevy!

[@victorbellan8357]

Nice job, fyi had a 30 Buick with a shutter system actuated by a thermal pod located in a pocket on the radiator tank ! They’ve come a long way ?

[@brynnond.6952]

So what happened to using the thermostat to let the engine warm up, why do we need a electric shudder assembly when the old trucks did just fine without? Is it for “efficiency”?

[@Sicktrickintuner]

Fuel economy

[@tomoakhill8825]

Eric you are correct. At 23:15 you say they go together easier than they come apart because of the assemblers standing on the line. Yes! I did that for a year at the oldsmobile factory 50 years ago. We made a car every 40 seconds, 3 cars every 2 minutes. No robots to speed the process. We laughed at all the items we assembled (most) that clearly were going to be _hard_ to remove for repair. That sticky tape was only to help assembly. The two donger (25:07) is a strap independent of the fender guard. It holds the end of the bumper guard to the fender.

[@johntaylor1947]

I worked on Autocar trucks in the 70s and they had temp operated radiator shutters..You could hear the change in air flow when they opened, and they made for a cool looking grill.

[@vickilund7206]

Drove one...dumping concrete on i40.....got tired of the noise...put a plug in the line..shutters..open all the time....summer time....boss never knew I guess.

[@SouthMainAuto]

Air shutters come open then the fan clutch kicked on, the 400 big cam cummins sounded like it was ready for take off haha

[@kjbunnyboiler]

Evening Eric, Chevy never disappoint! 😂

[@JUDGERAMBO]

They don't put gas caps on these any more.

[@richardluce775]

Which I why I spent way too much (according to others) on a 35 year old pick up with 80k from a non rust belt state. Tech can suck sometimes an old box is better engineering.

[@justsumguy2u]

Just more unnecessary, high tech junk to break....

[@charlespaluha1247]

This video was so so helpful. I was so getting ready to follow the service manual doing my first one of these. This video just happened to pop up through my feed a week or so ago Knowing that I had to do one of these. I was so getting ready to remove so much junk it was ridiculous. I literally did this job in 30 minutes and it's cold outside and it's raining. I normally don't do anything from home but this was a friend

[@Impressions906]

WEIRD that it NEW TO PUT IT ON YOUR FEED I JUST DID MINE THE AUTOE BODY SHOPS WAnted 1500$ i got ther gm part for 400$ and took me about 3 hours

[@hunterspinks7953]

Is there any programming involved in the install process that can't be done with a scan tool? Wanting to just replace my own but I've heard there has to be programming done by a dealer, but didn't see anything in the video like that

[@biffmalibu3733]

Engineered for assembly. Service and disassembly are not their problem. That's why all Engineers should be required to fix what they design.

[@j.r.3215]

It is called billable hours for the Dealership. If they make it easy to fix then you don't have to take it to a "Stealership" to get it fixed.

[@timbow50]

Amen. Every dealership in America is nothing but legal thievery. Technicians are so pathetic they couldn’t carry their weight at a shop like SMA. Just throw parts at it and shrug their shoulders while holding out a ridiculously exorbitant bill.

[@9HighFlyer9]

While it's under warranty the manufacturer pays for those billable hours though. Out of warranty vehicles rarely make it to the dealership for service let alone repairs.

[@mattbrown5511]

@@9HighFlyer9 The EPA and manufacturers did that. Neither will get any sympathy from me.

[@j.r.3215]

@@timbow50 I had a local Chevrolet shop that their shop rate was $25 higher than a factory repair shop for a $25 Corporate Million Jet. Now who do you think has more training and is certified by the US Govt to work/repair either of these "vehicles".

[@logicalguy488]

But Erik, it's not a Chevy ...it's a GMC. LMAO I have come across guys that say " You won't catch me driving a Chevy ... I am a GMC guy "

[@docktorleaky5869]

Pretty sure if you hit the front of that truck with a medium to large deer, all of that will just fall off in the road. Might save you some time.

[@SouthMainAuto]

😅🦌

[@kens.3729]

Always knew they had Shutters for Attic Fans and now the Vehicle Manufacturers found a way to Add another $ 1000+ for an Active Grille Shutter. Ridiculous! 🤪👎

[@dans_Learning_Curve]

777,000+ subscribers! Congratulations!

[@Mountain-Man-3000]

When will he get to the million??

[@hikerJohn]

@11:33 . . . they are not *designed* to be taken apart but so they go together easier, faster, cheaper . . . haha, you said the same thing a few seconds later.

[@jamesbruno5896]

That was a boatload of work but nice job Eric!

[@ghoul1shgobl1n49]

Lol nice pun 🤣

[@IgobySensei]

First time I have seen or heard of one of these. Appears to me they are not worth the fraction of a percent of fuel savings. Wonder if you can just put a jumper in to fake it out and remove that garbage. Another reason I will not buy a newer Chevy. Sticking with the old.

[@jw-hy5nq]

Now I know where the guy that designed the Honda Goldwing air filter replacement system went to. You have to take about half the bike apart to change the air filter. with practice you can get it down to 5 hours. The best part is they decided to use 4 different size fasteners and multiple plastic pins.

[@jblyon2]

That's likely the Audi engineer they hired that desiged the blower assembly on the Acura Legend!

[@nighthawkj30A4]

@@jblyon2 seen that before but the Acura Legend is a great vehicle except didnt know they hired a dude from audi blah.

[@nighthawkj30A4]

@@jblyon2 was it the vigor?

[@jblyon2]

@nighthawkj3096 Yeah they did. Some of the design is straight from Audi models of that time. Those parts seem designed to be as failure prone and difficult to work on as possible. Watch a video of a blower motor replacement in one. It will blow your mind. The rest of the car is bulletproof.

[@nighthawkj30A4]

@@jblyon2 seen it few years back on Ericthecarguy

[@phprofYT]

Active grille shutters. Improving fuel mileage by 1.25% since 2010 unless you live in the desert or giving it the beans.

[@ricanderson5717]

Thanks Eric! Amazing complexity to do who knows what😂

[@rkschloithe]

I have fixed plenty of laptop computers - they give you plenty of mini heart attack moments when separating plastic casings. Some are a lot louder than you would think. As well as looking for screws in weird places, plus the plastic clips are a lot smaller and easier to break and you can’t just go to a store and buy parts to replace them apart from the “mothership”.

[@williamallen7836]

Yup. Was IT for 35 years. Used to freak end users out doing certain repairs that could be done at thier desk, but required removing the plastic surround for the LCD. It sounds so brutal taking the plastics apart. 😂

[@LesReeves]

With you on that mate.

[@bradhaines3142]

im not worried about the plastic clips as much as all the delicate wires for things. antenna wires on the wifi car, display connector, stupid fan connectors on the cooler. so annoying. built a desktop the first time this summer, EVEN WORSE. just as tiny but so many more of them.

[@joeyf504327]

I remember seeing these in new trucks in 2016 and thinking, that surely can't last long. Looks so cheaply made! And here we go

[@yurbeeinwatched]

There was a time when the active grill shutter was a piece of cardboard. The active part was telling your drunk friend to go pull that cardboard out from in front of the radiator. I hope you sold them headlight and marker bulbs at the same time. It all worked until you touched it.

[@petertom829]

Yet another great and entertaining video, thanks Eric

[@scrappy7571]

That lower fascia and the wheel well trim are absolutely miserable to remove. Seems like each time I do one something breaks. Totally crap engineering.

[@miketeeveedub5779]

Back in the good old days you stuck a piece of cardboard in front of the radiator if you wanted better heat in the winter. Guess that's considered an "inactive grill shutter." Hate to imagine how much that monstrosity cost to replace. Oh well..."progress." Thanks GM for putting food on the table, land under the feet, and money in the bank for Eric O's family!

[@mikep.5517]

It's no wonder why modern vehicles explode into a shower of a zillion plastic particles during NHTSA barrier crash testing.

[@timm7885]

Think the assembly instructions for Barbie's Big Pickup show how this goes together..another gem, GM

[@mikeyshouseofbrakes8463]

Active Grille Shutter. Have it on my 2017 Silverado. What a worthless piece of apparatus that's just something else to break or stop working.

[@paulkresky1465]

In the immortal words of one of my favorite mechanics to learn from, Eric O. ; "The engineers for this must be a bunch of grade schoolers with their boxes of crayons". Lol

[@TylersNeighborhoodGarage]

Based on the sales figures of these things and how much they break, GM truck owners must be a bunch of masochists.

[@awallace2103]

I miss the days when a truck was a "TRUCK"

[@SouthMainAuto]

Now all they can haul is the groceries 😂

[@Ram14250]

When they were big, loud, sloppy to drive, and uncomfortable and got 7 mpg and smoke blue out the tail pipe. That's a Mane's truk! Now they weight 7,000 lbs, tow 20,000lbs and get 22 mpg at 75 mph and last 20 years (except NY state)

[@ulrichminky9495]

In a perfect world the engineers who designed a car would be given the service manual and a box of tools and they should have to each entirely dismantle the car by the methods shown in the manual. Any not completing the task in the time the manual suggests should be fired out of a cannon into the sun.

[@idnld1588]

“Take some piss poor engineering, and multiply by 12. And you’ve got yourself a Chevrolet.” Love it!

[@merrymanrc]

They make car's and trucks nice looking and with all the bells and whistles but it a pain to remove all the parts to get to the broken part

[@TheTsunamijuan]

Can anyone tell me if that is the same sensor the infotainment systems uses to display temperature? Or if its pulling that from some other system/sensor. My 3500 Sierra has never shown temp right on the infotainment. But seems to work fine. Trying to decide if its something thats important or just a inconvenience. As it sits I am still waiting for the correct shocks from GM already.

[@williamgagnonroadboxservice]

Yes, the informational system does pick up the temperature from the ambient air temperature sensor so if it’s off by a few degrees the sensors going to go bad eventually I’ve had to change tons of them on the Buick Park Ave and generally all the GM line.

[@TheTsunamijuan]

@@williamgagnonroadboxservice super helpful thank you. Yeah its off by 20-40degrees alot of times, if it updates at all. I will have them look at it while they are looking at the parking brake incline sensor.

[@woodworking5979]

My uncle would do his 77 cab over freightliner with a homemade grill cover and use kerosene and diesel fuel when running up north

[@motorcoachtech7615]

You mentioned at 2:18 that you used a scope on the Lin Bus. Other than using your Autel, what other scope do you use? UScope?

[@SouthMainAuto]

I have a 2 Picos, a U-scope, SnapOn, 2 Autel scopes and an OTC. Oh and 2 Vantages (kinda scopes)

[@motorcoachtech7615]

Thanks for replying

[@Thecrazyvaclav]

Active shutter to help aerodynamics, on something as aerodynamic as a cathedral. Pointless complexity, because they can

[@canalboating]

I'm in the UK across the pond my dad who's sadly passed now was a joiner (think you call it a carpenter in the states) made a wooden slatted cover which operated via a cord which he fed into the car interior this was back in the day when cars had manual chokes and carbs boy how times have changed

[@meadowviewlawncarellc8079]

What a useless piece of junk. Engineers gotta stop designing what they think people want and it’s not this garbage. Simplicity. Late 90s for the big 3 where the best trucks, but hey at least it makes you money Eric!

[@MAG_A_MIKE]

I had a GM engineer tell me cars are designed to be assembled, NOT repaired. 😂

[@Mountain-Man-3000]

That's exactly how they're designed now. They don't care how expensive the repairs are after you've purchased the vehicle.

[@truthsmiles]

I keep thinking someone is going to start a new car company that builds cars made to be repaired, but then I remember people generally won’t pay $1 more than they absolutely have to, which is why we get this junk. If we as consumers simply refused to buy cars unless they were easily repairable, every car manufacturer would quickly adapt.

[@MAG_A_MIKE]

@@truthsmiles part of the reason they have “all this junk” on vehicles today is so that they comply with federally mandated standards. Besides, you want Eric to be able to still earn a living, don’t ya?

[@truthsmiles]

@@MAG_A_MIKE Oops I should have been more clear - I meant “junk” as in the overall car being designed not to be fixable. Contrary to many I think safety and efficiency mandates are good for us. As I said above I think given the choice for a $1 cheaper car without emissions controls I believe many or even most wouldn’t want them. I know it makes vehicles more expensive but as someone with kids (and hopefully grandkids some day), the extra cost is worth it to me :) Edit: And yes of course I want Eric to make a living, but I think no matter how easy manufacturers make cars to fix he’ll always have a job. It’s the terrible mechanics who will be out of work.

[@paulschlobohm7226]

Some of the BS they put on these vehicles that takes an act of God and the front core support to get off to get to them. Pretty frustrating

[@scott6885]

Why does a non emissions part cause a money light? Ive never understood certain check engine lights that have nothing to do with the way it actually runs

[@mbc1994]

It is an emmissions part, grill shuts to reduce drag and use insanly amount of less fuel, thus saving the polar bears and the world ans stuff

[@blitz8619]

Well the grille closed, it makes engine warm up faster especially in cold weather reducing emissions.

[@volvo09]

It is an emissions part, my 09 civic si monitors the performance of the thermostat and the radiator. These active grille shutters were introduced for fuel economy. One more reason for strict states to kick your new vehicle off the road.

[@milfordcivic6755]

If a ecu/bcm controls it and fails, it will have a trouble code which illuminates the money light

[@harrywalker5836]

because in ny, it gets freezing, so the rad need a blanket keep some temp in the engine for it to work correct..

[@FaceFaceMan]

I just use some old carboard on my old 5.9 Durango. Damn hydraulic fan clutch is like a tractor trailer and it takes forever to heat up. Where can I buy that LED light you have? My dial switch is annoying and I don't have the flexy head.

[@robertdavis6708]

Eric O. has probably installed a dozen of those shutters making it look easy. But we all know that it's a chore. I swear he entertains me more than any video on the sight. When God made Eric O., he was laughing the entire time molding that clay.

[@kwhite145]

Site*

[@bigtruck57h25]

CHEVY THUNDER!!! ⚡⚡⚡ Greetings from Sunny North Florida 😎😎😎🌴🌴🌴🇺🇸🇺🇸🇺🇸

[@pookatim]

And to think we used to think it was ridiculous back in the late 1960's when you had to loosen an engine mount on a Chevy 327 V8 and lift the engine up three inches with a floor jack to take out the spark plugs. My how things have changed! 😂

[@bradhaines3142]

nope, that's still stupid. fun fact, subaru have the same problem

[@mikeduffy9409]

last time i drove something with shutters was a 63 peterbilt so there going backwards lol

[@THExLAWxMAN]

As always Eric, very good and useful info. I didn't know that GM was using that technology. Wow, the way these vehicles are put together now days really makes me worry that the cars will fly apart just going down the road. Now I know why I see the plastic bumpers on the sides of the highways here in Texas.

[@weekendminitoystruckcarclu4632]

You just about have to have a body shop remove all the plastic covers & body parts just to have a mechanic do their work. Then have the body shop reinstall everything they took apart. Lol Not saying a mechanic can't take apart a bunch of plastic panels but engineers keep mechanics & repair shop miserable as it ties up a person's time removing all the plastic nonsense to do a simple repair then you hope nothing breaks. Lol

[@cycleguy666]

Gotta love the car manufacturers!! 🚗 Paid for my houses......my tools,cars, it was my whole life's work!! Now in retirement I still tinker with my stuff and help out my neighbors....... and above all it keeps me laughing the way things are built and engineered!! Amazing!!

[@jacknasty6940]

Scotty? That you?

[@dougjones9493]

Plastic clipping into plastic what can go wrong? We used to use a piece of cardboard. Frist you get good, than you get fast

[@ChrisWilliams-pu8pj]

Eric, Glad to see you aren't worried about torquing people off! Always eager to hear your honest opinions. Have a great day!

[@BRadWilson3]

Active grill shutter = Fancy cardboard

[@mikechiodetti4482]

Thankfully the headlights are not halogen! Changing one on a 2012 GMC 3500 was a learning curve! Good one Mr. O. Old or new that shutter assembly was REAL flimsy! I was used to the old International "Rxx series that used steel and hydraulics. Times change.

[@agger838]

2012 gmc are easy

[@airratchetjockey7605]

Why because engineers, it seems to me we’re loosing ground on serviceability.

[@joshualord8042]

I have that same 1/4 air ratchet had it for about 10 years. I absolutely love it! Keep up the good work young man!

[@danielj.schneider5162]

Which one is that? I was figuring something from Astro (which I've been patronizing a lot thanks to this channel) but doesn't look right...

[@joshualord8042]

@@danielj.schneider5162 it is a Mac tools 1/4 ratchet. They have a newer style with more aggressive offset on the head, but it's no where near as reliable as the one he was using

[@danielj.schneider5162]

@@joshualord8042 Ah, gotcha. I see the AR249 looks pretty similar in terms of the head shape and length. For $45 I think I'll give the Astro 1/4" a shot; if it doesn't work out, maybe I can eBay a Mac. Thanks!

[@bobmcdoggish9659]

Radiator shutter? Back in the day we used a piece of cardboard and shoved it behind the grille.