2002-2007 3.7L Jeep PCV Valve! Loss of Power? Hard Start? Rough Idle? Oil loss? Oil on air filter?

PCV PVC VALVE. Diagnose remove and replace Positive Crankcase Ventilation or PCV valve. V6 3.7 Which is made of PVC 😁 Video for 2002, 2003, 2004, 2005, 2006, 2007 Jeep Liberty - Sport, Limited 4WD, Limited, Limited Jet Edition and Sport 4WD!
Buy FRAM PCV valve here amzn.to/3grlPnI
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S.F.V DISCLAIMER Because Lawyers; Any and all DIY and/or do-it-yourself projects entail some risk. No info contained in this video shall create any expressed or implied warranty or guarantee of any ideal result. It is the sole responsibility of the viewer to assume this risk. S F V is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video.

[@danielavilah]

Thanks for the video sir. Mine was acting weird while running, losing power. This video goes straight to the bullseye. Now I can sell my truck with no worries. Total cost... 6 bucks.

[@christopherstevens2777]

Nice walk through! I've been replacing all the small parts like this on mine for the pass month or so you know 30 bucks here and there and smaller parts too try too keep her fresh. 211333 miles on her and still running strong !

[@RussShawTV]

Nice 👍 211 k pretty dang good 😁 keep it up! Those 3.7 L run forever.

[@justblaze4707]

Dude. You are such a legend. I jusy bought a 2008 wrangler with close to 200k on it (i got a really good price) and had it inspected. Passed inspection but i still had all fluids flushed, filters check etc. I've had the rough idling at red lights and get that death shake sometimes, triggering the red lightning bolt and etc lights, also the blue/grey smoke. I told my mechanic to check the egr valve and he said it was clean. I'm 1000% checking and replacing this part tomorrow. I can't keep having that sinking feeling in my gut not knowing if shes going to start or if shes gonna die while im on the road. Thank you again. I will update.

[@RussShawTV]

It could also be your catalytic converter. Do you have an engine light?

[@justblaze4707]

@@RussShawTV the guy I just bought it from claimed he just had a new catalytic converter put in. My mechanic said he saw catalytic converter error codes, but figured they just didnt clear them when they installed the part. Might be worth looking into though. I don't know much about under the hood stuff but I'm learning a lot! Also, I recorded a video of it starting to shake while idling and the lights coming on. I just checked my video and the engine light didn't come on but when i was restarting the vehicle, it was one of the last ones to clear from the dash.

[@RussShawTV]

@@justblaze4707 P0420? Your vehicle actually has three catalytic converter‘s. He probably change the one on the tail pipe exhaust. The ones that clog (V6 3.7 you got I’m guessing) right next to the exhaust manifold. Bolted straight to it and they are not an easy replacement. If you have the P0420 code odds are it’s one of those cats. If they are clogged and that’s what’s causing the engine problems. It’s not good to keep driving it like that can do serious damage to your valves overtime.

[@justblaze4707]

@@RussShawTV Update: I took it to my mechanic and gave some input, telling him I thought it could be a pcv valve problem. Additionally, we both looked under the hood before I left and noticed an air filter plugged into an open vacuum port on the engine. We were both confused and he attached a hose and connected this to the air box (I think he meant intake manifold). I got the vehicle back the same day and he ended up replacing the pcv valve, doing that hose, cleaning the throttle body and doing a couple minor things like checking for vacuum leaks. He said this resolved the problem. I wasn't even out of the parking lot and it started to do its shake, and I got the red lightning bolt and the other etc light. I didn't have time to go back in but its concerning now because everything that I've researched has been addressed now. Could possibly be a Cat issue like you mentioned most recently.

[@justblaze4707]

I just did some diagnosing with my OBD scanner. So, the problem starts with the jeep sounding like its sucking in way more air. Then, the shudder happens and some weird values start to show. The timing becomes erratic and the throttle doesn't know what to do, and the idle rpm's go from 700 up to 1000 and settle. It seems my short term fuel trimmers are almost always acting really weird and when the shudder starts, they don't show up at all. Sorry this is so much to read, but I had to write it somewhere.

[@DinkyDauBilly]

Good video. Reduced my piss/moan factor considerably. Whatever happened to simply pulling a PCV out of the valve cover and slopping a new one back in. Keyways, wiggles, seals and deals ... anyway, thanks for putting it up.

[@RussShawTV]

I glad it helped Mike! Thanks for commenting man! I'll count considerably reduseing any piss/moan factor in the world a win!

[@davekana8388]

I know, right!

[@randydandy1871]

2002 jeep liberty renegade bought new in 2003 off the showfloor. When wifey wrecked it, i lifted it with 2" moog deisel springs and a ARB winch bumper on the front with a pinch weld mod, and 265 16 tires (fits on original rim) DRIVES LIKE A QUAD I LOVE IT. You know, california would not let them in without a 1" drop ? they dropped it 1 " the front forks can raise the jeep 1 ". Also they would not let the deisels in the state. But it has 210,000 miles, looks great, (cosmetic damage only when it was totaled)

[@RussShawTV]

Nice Randy 👍 Thanks for sharing man, Jeep on 🔧✌️

[@MiahsMARVELousMinistry]

This video helped me to chabge the pcv on my 05 jeep liberty Thursday March 30th. I'm now about to do the spark plugs but I can already feel a difference in driving. The car.

[@RussShawTV]

That’s Awesome Miah! Glad I could help 😁👍🔧

[@randydandy1871]

i want to emphasize They were suppose to be 1" taller, but federal law made them lower them 1 " during that rolover scare. The front forks can slide up to raise 1" and the rear springs are available from moog.

[@e.gadd.1]

OK I just cleaned out my PCV valve with carb cleaner just as in video. Before cleaning I had a barely running idle, struggling and would almost die if I didn't hold the gas pedal down. What difference! Now I'm idling above 1 and exhaust output air has like doubled, its coming out like a hurricane. And lots of popping noises. What the world? I would never expected such a change in a million years from this little valve. What could have possibly caused this

[@RussShawTV]

@@e.gadd.1 I’m glad you found the video helpful. These little motors need to breathe. 🧘 😎👍🔧👆

[@e.gadd.1]

@@RussShawTV I'm hoping the muffler popping is because I have my O2 sensors disconnected. I'm not 100% sure if they are faulty, I was testing them. Or maybe the valve is stuck open now? Seems a cheap enough part. I'm tempted to just swap it out with new

[@mattgaming8717]

Just when I start to question mine. Thanks. Will try out.

[@jagercowmaster]

Wow im gonna change mine too very soon

[@RussShawTV]

Great, I am fairly certain they will make a big difference.

[@fopop1567]

Thank you, sir. I thought my cats were going out. Going to give this a shot and after looking at it today, oil is leaking out of the valve. Houston, we have found the problem

[@RussShawTV]

Nice 👍 🤔 No engine light?

[@fopop1567]

@@RussShawTV no engine light on my ford ranger. My car runs fine just has extremely hard start. I have done a 50/50 test and ruled out spark and timing. I'll comment in a week to let you (and the viewers) how it went.

[@fopop1567]

That was the fix. 5 days in and all my symptoms went away. My car starts up in less then a second and feels like I got 30 horsepower out of it lol. Thank you sir!

[@RussShawTV]

@@fopop1567 Great news! Thanks for the update!

[@l.d.8310]

Im going to do this thank you and your daughter for sharing .

[@RussShawTV]

You will be glad you did 😁👍

[@thesetruths1404]

Hi I have a 2007 Liberty 3.7L V6, 117,000 miles. Owned it since 67,000 miles. It operated perfectly for the first 30,000 miles and then it started getting a #1 Cyl misfire code P0301. It also seldomly gets a #1 cyl fuel injector circuit open P0201. It must be a very mild fault as the misfire freeze frame data shows it always happens at less than 350 rpm and when cleared it comes back immediately at next startup, cold or hot. So it seems to only happen once on startup as its moving up to regular idle speed. The miss isnt noticeable when driving or idling. Its getting 15.5 mpg fuel mileage. Doesnt burn oil. Doesnt smoke. Has great power. I've changed plugs and coils but no difference. Cleaned air intake, air filter, and ran cleaner through system. I've cleaned and inspected the injector plug and all wires but no difference. Dry / wet compression test of #1, 3 and 5 cylinders all read good: 160 / 175 psi. I'm wondering if there's a mild wire defect for that injector, or just a flakey connection somewhere. Has anyone tried to use a new set of compatible gauge wires and run them to a place closer to the injector control? I can't see where the wires go though. I'm not sure if I should just live with this, or troubleshoot it more. I don’t care about the engine light as we don't have emission requirements. Now that I know the compression is good, I'm not so worried about it. Any suggestions of what to do next? Thanks!

[@RussShawTV]

Odds are you need to replace your coil packs. Your coil packs are malfunctioning causing fuel buildup. I would change all of your coil packs. I mean you can change cylinder number one but odds are the others are going to start going out soon as well. It’s a common problem the coil packs don’t last forever. I should do a video on this soon

[@rosadeleon7202]

Yup I had the same on a jeep liberty sport 03 ,it would shake when I would press on the gas and oil pan light would come on and found out it was low on transmission fluid and the coil packs were what was making it shake and have loss of power

[@tywheeler7131]

If you do one for the heater core, you’d be a legend!

[@RussShawTV]

Thanks, didn’t know there wasn’t one for the heater core. My daughter sold the jeep so odds are I won’t be doing a video on that but thanks for the respect and subscribing to the channel 🙏

[@Domoneicqua]

I will be doing this on my own as they want $125 to do this. If I can replace a number I can replace this lol.

[@Lemonhead8890]

For the record there should be no click or snap... you have probably broke it if you did that... it slides into a groove and just needs to be pressed in all the way.

[@lostnthe70s]

That was a pressured line you banging on.

[@davekana8388]

Liked and subscribed, 2004 Renegade here, thanks!

[@RussShawTV]

Nice 👍 😎 would love to know how it works for ya 😁

[@davekana8388]

@@RussShawTV I tried to remove the PCV down like you showed and it snapped in my hands. Oh well, 18 years old!

[@davekana8388]

@@RussShawTV so how does one keep the Cats clean? Avoid short trips?

[@RussShawTV]

@@davekana8388 Changing spark plugs is a big one. Making sure you have the right spark plugs. Gapping is kind of a thing in the of the past they come pre-gapped depending on the year make and model of the vehicle. The fuel in the cylinder once the fuel injector sprays it in needs to burn up completely. If it doesn’t then the fuel and whatever dirt in the fuel or in the combustion chamber get sent to the catalytic converter. This is what tends to plug them up most overtime.

[@davekana8388]

@@RussShawTV clean fuel is the rule! Do you recommend an additive?

[@eMotoAZ]

I have a 2002, thank you so much! Perfect video. I will let you know if it helped mine. I am a subscriber. 👍

[@RussShawTV]

Sweet yes keep me posted. You may have to drive at five or 10 miles to feel the difference. You could also try disconnecting + battery terminal. Waiting a minute and reconnecting it. Can’t remember if I shared that in the video 🤔 but that would reset your computer so it was acclimate faster to the air intake.

[@eMotoAZ]

@@RussShawTV I'll try that.

[@eMotoAZ]

@@RussShawTV last night I cleaned out the throttle body valve didn't do anything with the IAC, this morning the pcv will be in and I will let you know right away, thank you again for letting me know about the battery as well. I'll be checking in soon. 👍🇺🇸

[@eMotoAZ]

@@RussShawTV it works really good! And I appreciate the heads-up on disconnecting the battery. Great results thank you again.

[@fordman77881]

Oil cap is loose to that will cause issues

[@benjamintrinidad2111]

Interesting

[@RussShawTV]

It’s definitely a most common cause! Thanks for commenting and subbing the channel 🔧😁🔧

[@anthonyrabaiotti5015]

Totally on point with what is happening to my 2006 Liberty THANKS 😊

[@shannonkirby7040]

Thanks for the video My daughter has 2003 Liberty and loves it, now it start then shut right off Stay running long as foot is on gas, changed fuel pump relay but still does it Maybe this is the problem

[@RussShawTV]

🤔 Engine light on?

[@shannonkirby7040]

@@RussShawTV No check engine light

[@RussShawTV]

Yes try the PCV valve that should fix the problem. If you get a P0420 code that’s cat catalytic converter. Similar symptoms

[@shannonkirby7040]

@@RussShawTV Yeah so far it’s not showing a check engine light But I’m going to get a code reader also, need one anyways 😂 this is a better reason to tell wife I need one

[@CFITOMAHAWK]

Put Marvel Mystery Oil on gasoline. It will clean the cylinders. Hot sludge in cylinders is what cause that afterrunning problem.

[@willowraven4239]

Alright LETS TRY IT!

[@RussShawTV]

You got this!

[@dakota47v8]

Good job dad 👍

[@RussShawTV]

Thanks buddy 😁👍🇺🇸

[@COMtnPilot]

Just FYI … This does not work for the 2007 Liberty. The PCV valve is different, and is also in a different location. Good vid though! 👍🏼

[@RussShawTV]

Thanks for your input man. Hopefully in 2007 they fixed the problem LOL. Curious 🤔 Do you have a PO420 code?

[@jamesoberg8809]

I had a 2007 Liberty and a 2008 Liberty. They both had the large screw in type in the rear of the engine on driver's side.

[@josealtuve9029]

También debes revisar las mangueras de vacío que van al carter

[@edwardjohnson3547]

Jeep V6 engine seem like they have a lot of problems to the 4.0 inline 6 was near bullet proof

[@RussShawTV]

Coil packs, were a relatively new technology in mass production at the time. But those 3.7 are pretty good little motors. I’ve seen many of them with over 200,000 miles. And yeah, those 4 L straight six engines were great. We had an 88 Jeep Cherokee with one in it. 🙏 Miss that rig. Wife got a wreck with it. Hit the person in front of her and the person behind her hit her in a kind of pileup situation, she was OK no injuries, but the Jeep looked like an accordion. 🪗 I actually tied a come along to it and put it between two trees to try and pull it back into shape so I could still 4X4 drive it 🤔 I realize the plan had holes in it when the rear hatchback fell off onto the ground 😂 LOL 💙

[@MrProline727]

Great video I have a 2004 Liberty limited V6 3.7L I’m gona change my PVC valve tomorrow and see what happens.mine is doing everything you said yours is doing.mine miss fires with no code.changed plugs still the same.Then throws the code P420 randomly.and also at times the thing will fly like peppy and then another you can feel it just hesitating.Did the pvc valve fix your issues?any advice or information anyone can share be great.

[@RussShawTV]

Hopefully that helps. Odds are you’re going to need a catalytic converter down the road soon.

[@ayala-ee3rf]

you should of cleaned the port for better ventilation

[@Nicksbf109]

And hose good point

[@stevebazinet3088]

did the excessive oil consumption get fixed with the PVC valve swap?

[@RussShawTV]

A little bit. Her jeep has 200,000 miles on it so it burns some oil.

[@billsixx]

Usually, when I hear the "SNAP", the part is generally FUBAR

[@RussShawTV]

PCV is Still working splendidly

[@billsixx]

@@RussShawTV Fantastic.

[@stanneh1978]

Um, did it fix anything in the end? 🤷‍♂

[@RussShawTV]

Yep, you can check out other comments here too. new PCV valve is also a most common cause for sluggish running 3.7 L V6's of this year.

[@stanneh1978]

@@RussShawTV sweet so no more hesitation?

[@RussShawTV]

Yes this fixed the problem. But then again it’s an old jeep. Does it run perfectly, no it has over 200,000 miles on it now. But it’s not hesitating when she goes up hills or on acceleration anymore.

[@stanneh1978]

@@RussShawTV I don't have any issues myself I just watched randomly and you left me on a cliff hanger I was like noooo did it work?? 🤣

[@RussShawTV]

😁👍🔧

[@CFITOMAHAWK]

Disconnecting hoses?? Do only when hose is warm, not cold. Cold hoses can break due cold they wont spanand can break instead, Warm up engine if. Or use a hair dryer if cant start. Dont disconnect old cold hoses they will break instead..

[@RussShawTV]

TBT If the hoses are so old and brittle they break when they’re cold. You should replace them anyway. It’s best to replace the hose is when things are called for that reason so you can replace brittle worn or breaking hoses. Thanks for commenting great points appreciate your input.

[@CFITOMAHAWK]

@@RussShawTV Sometimes you just want to do a quick job, not replace them after you break them.. It is a tip.

[@RussShawTV]

@@CFITOMAHAWK That’s good tip. 😎👍 I just did that heater hose junction on our Pontiac G6. Technically a shop would’ve recommended me replace all the hoses but I did not do that because it would cost me a fairly good chunk of change. 💸💰🤑Hoses I have are old and worn but they’ll do for probably another 30,000 miles.

[@stevepalenicek4690]

Mine kept fuckin up.did all kind of work. I unplug that valve now it's running great tf

[@RussShawTV]

Interesting 🤔 usually when you unplug them the engine runs like crap. You may want to takeoff your valve cover. Change your valve cover gaskets. You could also try a hot oil flush in between oil changes. Odds are there may be some gunk in your engine. Could be clogging up your breather tubes.

[@stevepalenicek4690]

Thanks .I've done alot of work it's driving great so I rigged a filter up to it but running runnin

[@RussShawTV]

This one is my daughters and it’s still going at 207,000 miles 👍🔧😁

[@stevepalenicek4690]

Mine has 230 thousand but needed lot of love

[@stephenyparker1539]

@@stevepalenicek4690 can you describe the filter? You mean that it's on the place where the PCV hose connected to?

[@cloudrehzii]

I had a full bank misfire because my cats where clogged . I cleaned all the screen and dirt out and put it back together doesn’t misfire now although I have a weird rough idle . Being cold it won’t stay started but when it warms up it’s still a little rough any ideas ? Change injected o rings coils spark plugs

[@RussShawTV]

Wait, 🤔 you pulled the cats off and cleaned the screens?

[@cloudrehzii]

@@RussShawTV yanked all the screen out is what I meant lol . So made the cats hollow and put them back on

[@RussShawTV]

@@cloudrehzii Nice! I always wondered if that would work. I live in Washington state they got rid of the emissions testing 👍 Are you burning oil? Do you have a light on still? 🤔 It could be your downstream O2 sensor is telling your computer That you’re burning hot and the idle may be adjusting to compensate.

[@javiercastillo7084]

can this trigger the abs light esp light and traction light on ?

[@RussShawTV]

No, That’s something else going on probably a faulty sensor.

[@michaele4955]

nice but I just bought this vehicle and the hose on the PCV is not attached and I cant find it? runs fine but I feel the vacume is affecting my milage

[@RussShawTV]

Fun Rig Man! Yeah I would definitely buy the PVC valve and then when you get it buy some hose that fits it. That is not good for your engine to have that open sucking dirt and contaminants into your engine. My daughter owns this vehicle it’s been really good for her. She’s put a bunch of miles on it and definitely got her moneys worth buying it used

[@fernandovilla1730]

@@RussShawTV WHERE IS THIS PCV VALVE CONNECTED TO? MY JEEP HAS IT DISCONNECTED

[@bedwellbrandon]

If you bought the jeep used like I did there’s a bypass you can buy the totally ruins the way the jeep functions and drives the bypass includes a whole new fill spout that dose not have the pvc velve nipple off the side it’s a joke

[@stephenyparker1539]

@@bedwellbrandon did you close off the other end of that bypass hose connection? Can you describe?

[@jrjerles9761]

Don't know whats happening, the birds are the loudest audio on this video .

[@RussShawTV]

🤔 as far as the bird issue I recommend this video 🦜🐓🦅 kzbin.info-yITwynbQdM?feature=share

[@stephenyparker1539]

What is the name of the hose connected to the pcv valve?

[@RussShawTV]

I called the breather house not sure what the technical term is but a breather hose usually goes from the south cover into your air intake. PCV valve regulates it

[@stephenyparker1539]

@@RussShawTV you are correct. I put that in to Google with my vehicle information and it came up that exact part with connectors. The whole thing not just that small bend but the other part as well and the connector

[@nate_feag8044]

Did it work??

[@RussShawTV]

YES but I needed to install the cat too

[@bernardbelonwu8067]

I want to change my liberty 2003 engine

[@RussShawTV]

Why? What’s wrong with the engine in it now?

[@RussShawTV]

What year is your Jeep Liberty?

[@dougdileo4727]

YOU FORGOT TO TIGHTEN OIL FILL CAP

[@RussShawTV]

It's ok Doug buddy. Just because I didn't film it don't mean I forgot it :)

[@dougdileo4727]

@@RussShawTV cool. was just a guess- it does happen

[@RussShawTV]

@@dougdileo4727 it does true that 👍