DIY How to Replace a Noisy Heater \ AC Blower Motor on a Chevy Blazer S10 GMC Jimmy - Blazer No Heat

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Blazer, S10, Jimmy Blower Motor Resistor on Amazon - amzn.to/2JBv7PZ
Blazer, S10, Jimmy Heater Blower Switch on Amazon - amzn.to/2NoSTA1
Important: Disconnect your negative battery cable before beginning this fan motor replacement. This video is a quick walkthrough of the steps I've taken to replace a whining blower motor on a 98 Chevy Blazer. The process covered in this video will be very similar or the same on many other vehicles as well. Other pickup trucks and SUVs include GMC Jimmy, TrailBlazer, S10 Pickup, Sonoma, Envoy and many more.
Replacement Blazer, S10, Jimmy Blower Motor on Amazon - amzn.to/2DTmewl
Blazer, S10, Jimmy Blower Motor Resistor on Amazon - amzn.to/2JBv7PZ
Blazer, S10, Jimmy Heater Blower Switch on Amazon - amzn.to/2NoSTA1
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Disclaimer:
Due to factors beyond the control of Mark Jenkins, I cannot guarantee against improper use or unauthorized modifications of this information. Mark Jenkins assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. Mark Jenkins recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of Mark Jenkins, no information contained in this video shall create any expressed 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 from the information contained in this video is the sole responsibility of the user and not Mark Jenkins.

[@nogripes]

Replacement Blazer, S10, Jimmy Blower Motor on Amazon - amzn.to/2DTmewl Blazer, S10, Jimmy Blower Motor Resistor on Amazon - amzn.to/2JBv7PZ Blazer, S10, Jimmy Heater Blower Switch on Amazon - amzn.to/2NoSTA1

[@educational4434]

Thank you, man. You are literally the only video on this topic that shows how to get it back in by knocking that bolt out of the way

[@ReggieDentmore]

Right on! ... Thank you for that "change the blower motor" video. I have '99 Blazer LS 2Dr. 2WD with a blower fan that squeals and only runs on "high"... at 360,000 miles, it's time for me to change-out that fan. Thanks for your help!

[@LogicalDumby]

I have the same car with the exact same issue!!! Will be replacing mine here soon

[@BigDsHomestead]

Once I get the chance, I am going to do this myself. Who knows. Maybe I'll make a video of it, too. You really made it easy to understand. Thanks.

[@loomex]

I have a 2000 Jimmy and the blower makes lots of noise on the 3 and 4 speed setting. Sounds like it just needs some WD-40. Your video was extremely useful so when it warms up here in NY, I can just replace it. One thing you did not mention, is since you are removing wires from the PCM, one should disconnect the battery first. This maybe obvious to some but maybe not others.

[@loomex]

***** I rewatched it and see nothing. I am using a windows desktop

[@loomex]

***** Now this is odd. I rewatched it 3 times with nothing, and now I am watching and the yellow battery warning is there...weird

[@loomex]

***** Because you have an S-body vehicle, I am sure you will get many more opportunities to tell people to DISCONNECT THE BATTERY BEFORE YOU BEGIN! I am on my 3rd. First 96 blazer engine committed suicide while on vacation in FL. Second 96 blazer I put to rest (frame had rotted out to the point of no repair). With the help of your video's, I'm hoping the Jimmy will hold out a bit longer.

[@Wendyieann]

Loomex, sounds like my 2001 Blazer! 3 - 4 speeds sounds horrible (not all the time). Right now it's - 31... too cold to work out in the snow bank to fix it!!! Sigh. Hope it lasts until warms up.

[@loomex]

***** That is something I had thought of, but I'm not sure of a good spot to drill.

[@StuDogg81]

Also for that 7/32 bolt if you put some grease in the socket it will help hold it in the socket, just a friendly tip from the guys at Eastwood Automotive!!

[@davidr.f6242]

Very informative Mark now I feel more confident in doing mine thank you so much. David

[@Superduty_59]

Mark, I really like your videos on s10 blazers. You have a clear way of explaining and a steady camera hand. Do you have any heater core replacement videos? I saw a few others on YT but If you had one I know it would be better. Thanks

[@edwardallen9980]

Video was very helpful and you made it easier easier to replace a blower motor thank you

[@vincebermudez869]

Thank you. I will be changing mine out today and your video helped so much.

[@timothyholmes8101]

I am living in New York State and my blower, just burn out and its mid-winter. Thanks for making this video. I am going to change it this weekend.

[@MyREDTAIL]

Or AC Also in the Hot Months etc.

[@1dirtovalracer]

hi Mark, great video. I have 2 questions for you. while you have the antifreeze Reservoir out would it be a good idea to flush that out and cases got any contaminants or debris inside it? and second of all should you clean the contacts to go into the computer and if so what would you use before you plug it all back in? keep up the great work . thanks.

[@Sckloste]

Nice video. The re-shoot was good. The first video helped me replace my blown blower motor on my Blazer.

[@jarthur9326]

All of your videos help so much. Your a great mechanic and pay attention to detail. Thanks for the guidance! Your helping me become a mechanic!

[@jamiesarkisian9769]

John Arthur me too thanks Mark. Watching all blazer videos

[@jamiesarkisian9769]

***** I need to do oil cooler lines too, Oil Filter holder and radiator. Once you do the video I can tackle this. I always get hung up on some simple step or lack of tool. Your videos help minimize the issues. The Oil cooler lines leak in the cold. I use wood stove caulk to stop the leak. The radiator leaks if it is topped off and stays about 8-12 oz from full. The oil filter holder has rotted away. The casting is very poor. Despite the issues the car still runs great. I am up in Maine in Bethel at my timeshare. I would love to talk on the phone with you can you contact me on facebook ? Your videos has allowed me to keep my car along with the reasonably price parts you can find online. I would like to help you with your videos and compensate you for your good will.

[@customengravingsbyhuntersh657]

***** thanks for the video man lol with my discount at oreillys the blower only cost 20 bucks and even tho im a mechanic i always look up to see and make sure i do it right i checked my s10 and its a bit different but mainly the same so thanks man

[@customengravingsbyhuntersh657]

thanks man, i ended up doing it yesterday mid video wasnt bad and i didnt have a peice to cut out on the blower

[@chrisc7615]

How long does it take to remove and re-install the blower motor without breaking anything or losing any parts??

[@coolmusic1579]

I have a 1996 GMC Sonoma 2wd, 2.2 , 5speed, this gives me a idea on what to do, thanks.

[@photondebuger45]

I took that off my 98 Sonoma because it squeaked too and was also the culprit Im sure of my resistor burning out too exactly like you said too. Thing was I never took off the computer tho to take it off I did it with it in place. Did make it harder in a way but that's all I did it popped out and I had to do some gymnastics to get it back in but I did. Oh I oiled mine with like silicone based oil got the squeak out and made it spin better too. It's the original on too I see the date that it was made in 98 too.

[@jenyminor]

Great informative video! So does the ground connection just hang and is no longer needed?

[@austinwest8352]

Yes. The new motor is internally grounded. So your external plug is not needed. Id tape it up and zip tie it to something, but not too tight.

[@Reddog794]

Hey Man, I have an 05 Blazer, and the blower won't even come one. I've searched and tested the relays, and connectors and it lights up. Any ideas where I could look before I go about this procedure?

[@tboy0507]

i replace mine on my 98 chevy s10 pulled out the pcm and after plugging everything back in the truck won't start.. any ideas would help thanks

[@shawnderman123]

A lot of motors don’t come with a fan and you need to use your old one. You should also switching that. The first time I did this about 15 years ago with no instructions it was the only thing I couldn’t figure out

[@zachharp563]

what exactly does the shroud do? if the blower bolts in there, then doesnt it seal up and seal up on the lip of the tube? if its only one screw holding the shroud in there, then cant you just put that screw in there without the shroud and go on your way?

[@sundancer76]

Ok. I have the 95 s10 Blazer(1st Gen) I've always wondered why mine doesn't have the PCM on top of overflow canister?

[@RaoulThomas007]

Because your vehicle is First Generation. In 1995, GM was transitioning from OBD I, to mandatory OBD II, in 1996.

[@valeriesalamanca6823]

How do u fix a blower motor on a 2000 fmc Jimmy blazer it is making a weird noise it is rubbing on the inside of the wheel well

[@jarjarblinkz2892]

Hi, just bought a 2000 blazer and want to flush the cooling system because of all of the muddy sludgy dexcool in the system i have heard from guys that work at chevy dealers that a cap full of cascade detergent works great have you tried this at all or any other method that worked for you?

[@bashafacin]

i just replaced the radiator and flush the block

[@vennonlacy6814]

I have to use AJAX liquid dish detergent the lemon works perfect let it run for 20 minutes and it flushes all the right out good luck

[@jamiesarkisian9769]

Joe Heitz I am sure it will work. I just use water and drive it. I change it 2-3 times or till it comes clean. Don't want and residue in the system.

[@gregschroeder5828]

Nice video. Thank you. I have a 2002 S10.

[@gregschroeder5828]

My blower motor was inoperative suddenly after working fine as opposed to becoming progressively worse or noisy. After removing the screws and pulling the motor and squirrel cage outward I gave it a little spin and then it worked fine again. It seems as if I had something suck in mine which is now removed. I figured I'd try this since removal is so easy and I didn't yet have the replacement.

[@snud69]

i replaced blower moter in 98 chevy s10 blazer. i followed your video step for step and now my speedo and tac dont work , it wont shift and lost power till it stalled. i was told that i half to have pcm flashed now because i removed it per your video is this true?

[@jamiesarkisian9769]

Jeff Evans Did you get the issue resolved ? I am scared to do it by taking all the connectors off and then having them all work. Try some spray that helps electrical conductivity.

[@RaoulThomas007]

Always disconnect your negative terminal at the battery before you start.

[@drankin7827]

That stud in your way can easily be moved by loosening the bolt most of the way and gently tapping it down into the wheel well. Just tighten the bolt to lift it back up again.

[@ronaldreed7698]

PCM or ECM? PCM is Pulse Code Modulation AKA digital but I 'spose it could also mean? What's PCM mean in regard to what he's referring to?

[@Superduty_59]

Power Control Module.

[@RaoulThomas007]

PCM’s and VCM’s are your two choices with Blazers and S-10’s.

[@gregsmith7175]

Nice video, helped a lot! Thanks....

[@Dubblesteel]

Thanks for a great video

[@DavidHernandez-ue4fz]

What about removing the fender?

[@RaoulThomas007]

You can remove the inner fender. That makes the bottom 5.5mm bolt much easier. However, it takes a little time too.

[@debbeen947]

kool man been good thank you

[@xxnolimetz2756]

Same on an 88?

[@dougcouto]

Very Nice! thanks for sharing!

[@jalexhedez8406]

Lov dis video...

[@Itscreeknotcrick]

i replaced my 95 s10 4.3 heater core now it idles really high jerks when putting in drive its so high anyone have any thought

[@RaoulThomas007]

Your vents and solenoids work on vacuum. It sounds like you created a vacuum leak somewhere. While sitting in front of the dash listen carefully for hissing!

[@darrelpost678]

Are you still active on this channel? If so, get back to me. I would like the name and the part number of the replacement blower motor and where you ordered it from.

[@ghouliesgarage3922]

Thanks Godbless ! !

[@Jennifer-xz8ic]

you forgot to replace the studs for the overflow bottle

[@robertsmart525]

THANK YOU FOR THE VIDEO

[@doylemetzinger1774]

If you want you can learn from inplix scripts how to make it yourself.

[@damienhayes7353]

Would there be any other way to seal it without the piece you cut? I just got my 95 and somebody removed the blower and never put it back so I don’t have the piece that you cut out

[@RaoulThomas007]

I don’t think ‘95’s had that cover.

[@Wendyieann]

Great video! Thanks!