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Questions tagged [gmc]

A division of General Motors which produces trucks, buses, vans, and other large vehicles.

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GMC Canyon Transmission Change

I have a 2020 GMC Canyon and the recommended trans change is 45,000. I'm 15,000 miles over that time, should I change it or not?
Samuel nelms's user avatar
2 votes
2 answers
34 views

2010 GMC Yukon Denali XL - Oil pressure sensor not functioning properly but no abnormal engine noises. Potential mechanical issue?

Started the engine to find that the oil pressure meter was at 0 and there was a check engine light (solid yellow not blinking). There was not a red low oil pressure light. There is an oil leak going ...
Wolf Zwiener's user avatar
1 vote
2 answers
53 views

Ball Joint Separator Large Enough for GM Truck Ball Joints?

I am trying to separate the upper ball joints from the steering knuckle on a 2003 Hummer H2. I have tried using a pickle fork to separate them but it will not budge by any means. I tried using a ball ...
Wolf Zwiener's user avatar
1 vote
0 answers
24 views

PCM blew while on fwy. Now blows 1 second after starting

2004 gmc envoy XUV 4.2 Running perfect with NO CODES then PCM-1 fuse blew at 70mph. I replaced fuse, started vehicle, it runs for ONE SECOND and blows the PCM-1 fuse again.
shane's user avatar
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1 vote
1 answer
24 views

GMC transmission compatability

I have a2012 GMC SIRRA 5.3, 6-SPEED TRANSMISSION. Will a 2005 Yukon 5.3, 6-speed transmission interchange or fit?
James Abrigo's user avatar
0 votes
0 answers
18 views

ECM Acadia SLT with Enclave engine

I have a 2007 Acadia SLT with a 2008 Enclave engine . I have a couple of codes that keep coming back . P0036 P0024 they will not clear . Can I reprogram the ECM or do I have to get an ECM for that ...
Dennis Randall's user avatar
1 vote
0 answers
53 views

GMC c5500 TopKick

There is a transmission problem and a code on this truck but my scanners cannot read the PCM codes. What scanner should I use to read PCM codes on a GMC c5500 TopKick?
Henry's user avatar
  • 111
2 votes
1 answer
41 views

Can you add a fifth TPMS sensor to a GMC Savana 3500?

I have a small truck built on a 2013 GMC Savana 3500 cutaway. I recently got new tires and the tire shop saved the best of the old tires so I could have a spare. I ordered an new wheel to install the ...
yakatz's user avatar
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0 votes
0 answers
21 views

Fuse for reverse light

I have a 2010 GMC Terrain that both reverse lights don’t work. I can’t seem to find what fuse to look for.
Joan Rivas-Suazo's user avatar
0 votes
0 answers
31 views

Adding coolant into reservoir it comes out overflow on radiator

I changed water pump 02 gmc sierra 1500 and of course I had to drain the coolant system to do that . As I am adding coolant back into the system through the reservoir it is coming out radiator ...
jeremy dorman's user avatar
1 vote
0 answers
24 views

What wiring issues am I looking at for engine swap?

Thinking of putting 2003 Chevrolet Trailblazer 4.2 L engine in 1981 GMC Sierra. Complete 2003 Trailblazer donor vehicle. 1981 GMC has a small block 305 and 3.42 rear-end. What wiring issues will I ...
Godzillasrevenge's user avatar
1 vote
2 answers
75 views

05 Yukon XL Evap Test Incomplete, Need Troubleshooting Help

I own a 2005 Yukon XL, and I'm facing issues completing the evap test. I've attempted various drive cycles with the gas tank half full, as well as driving for 5 minutes and then idling in park for 5 ...
joe's user avatar
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1 vote
0 answers
41 views

New alternator and 2 new batteries but still get bad battery light

Have a dual battery setup in my 2000 gmc Sierra with an auxiliary battery for my sub isolated through a relay to the other for charging had some issues with the lights dimming so I replaced the ...
Lildeath's user avatar
1 vote
1 answer
3k views

How do yo turn the v8 to v4 off?

On a GM v8 that goes to v4 econo mode, is there a way to make it stay in v8 mode?
Michelle Chaney's user avatar
2 votes
0 answers
34 views

Car steering issues

I have a 2011 GMC Acadia SLE. I can move the steering wheel easily even though the car is off. I can even move the front tires with relative ease side to side. What could be the problem, if any? I ...
user132109's user avatar
0 votes
1 answer
5k views

When I turn the key to start it it acts like the battery is dead: It wont even click

I have a 2011 GMC Acadia Denali. When I turn the key it doesn't even click, but I still have headlights and interior lights, my gauges work, I can roll my windows down and move my seat (both are ...
Shawna Hommer's user avatar
2 votes
2 answers
208 views

2002 gmc sierra 2wd rpms rise when applying brakes

Truck is 2wd 5.3 v8 non flex fuel When driving anywhere from 60mph to 80mph rpms rise when I lightly tap or touch the brake pedal. I also get intermittent abs and brake warning lights when hitting ...
Joe.'s user avatar
  • 21
0 votes
1 answer
187 views

Can I put 255/40 R20 tyres against manufacturer recommended 225/60 R17 on GMC terrain 2015 SLE2 version

I have GMC terrain SLE2 trim 2015 model with R17 225/60 tyres as manufacturer recommendation. When I bought this car, it was installed with 275/40 R20 tyre. However, now its time for for tyre change, ...
Alshad's user avatar
  • 23
1 vote
2 answers
694 views

Engine Revs Up and Down when Idling Right After Startup; Stabilitrack and Engine Light Comes On; Engine Power Reduced

I have a GMC 2010 Yukon Denali XL, when I start the car, and have the engine running idle. The engine runs a little bit rough and every 20 seconds or so the engine starts to rev up and down from 400 ...
Wolf Zwiener's user avatar
10 votes
5 answers
3k views

Is an exhaust pipe broken at engine connection fixable by a DIYer?

I took my 1999 GMC Sierra 1500 w/5.3l to a transmission shop to have it replaced. The process requires disconnecting the exhaust pipes going into the engine to get access to the transmission. When the ...
Stay-at-home-dad's user avatar
0 votes
0 answers
40 views

03 yukon electrical

Its an 03 yukon with a brand new battery in it. In the past 3 months it has went in for a no crank no start issue twice . Both times it was just an ignition fuse. Something is causing this fuse to be ...
Tbc's user avatar
  • 21
2 votes
0 answers
323 views

No crank no start 03 gmc yukon

I have an 03 yukon(5.3L) it wasnt starting a while ago and it just needed a new ignition fuse. After a week of driving it, it didnt want to start again. It has a brand new battery on it and the ...
Tbc's user avatar
  • 21
0 votes
1 answer
63 views

Transmission slipping after losing fluid from line rupture

2007 GMC Sierra 1500 four-wheel-drive. I was driving to work the other morning and I blew the upper transmission line off the transmission lost all fluid and of course my vehicle slipped and slipped ...
KOBA5150's user avatar
3 votes
1 answer
158 views

95 gmc vandura 2500 part name?

I'm working on my 1995 gmc Vandura 2500, with 5.7L v8, TBI engine. I am trying to figure out the name of a part that appears to be missing a tube/hose so I can find a diagram to figure out what it is ...
SatyrGrey's user avatar
2 votes
1 answer
44 views

What is this under-seat part on a '99 GMC Sierra, and can it be repaired?

This part of the driver's side broke off so the left side of the seat collapses a few inches down on that side. It's part of the seat power height system so I'm guessing a 'seat-height adjuster'? It ...
Stay-at-home-dad's user avatar
0 votes
0 answers
92 views

Change single caliper to dual

I currently have single calipers on the rear axle. Am I able to replace these with dual calipers on each side of the rear axle or will there be issues?
David's user avatar
  • 1
-1 votes
2 answers
5k views

Truck will not reach operating temperature

My 2005 GMC SIERRA 1500 runs at about 180/190 degrees, and won't heat up beyond that. The thermostat and coolant temp sensor have been replaced, and I've been trying to burp the system with hit and ...
Ben Hopson's user avatar
1 vote
0 answers
118 views

Coolant bubbling on 82 K1500 6.2 diesel

Vehicle is a 1982 GMC K1500 6.2 diesel. It's got a 1987 6.2 diesel engine in it swapped by some previous owner (there were many). The truck has sat for a while since I didn't really have time to work ...
Dan K's user avatar
  • 11
1 vote
0 answers
77 views

08 GMC Canyon automatic 4l60e won't engage when shifted from park into drive, but will engage if shifted from park to 1st

I have a 08 GMC Canyon 4x4 automatic transmission 4l60e that when shifted from Park into Drive it won't Engage but if shifted from park to 1st it will engage. The transmission won't go when shifted ...
Scott's user avatar
  • 11
0 votes
1 answer
112 views

A/C is not blowing thru front vents

Recently had battery changed....I recalibrated the HVAC but that did not work. There is a possibility that I pushed an A/C button before the calibration was complete. Could this cause the front ...
ROBERT SPANGLER's user avatar
1 vote
0 answers
39 views

What is causing my brake calipers to stick?

I sit at a job site with my 2009 GMC Sierra idling for heat, or aircon. After 20 minutes of idling, I go to drive off and the brake calipers are locked up. Already replaced pads, discs, short lines, ...
RayGMC's user avatar
  • 11
4 votes
1 answer
213 views

Correct placement of an aftermarket transmission cooler

I previously installed an aftermarket transmission cooler in a 2006 GMC Envoy (4.2, 4L60E). I installed it "after" the factory oil-water heat exchanger built into the radiator (that is, the ...
masospaghetti's user avatar
1 vote
1 answer
724 views

Power steering pump not sucking fluid

Just replaced the PS pump in a 05 Yukon Denali with a remanufactured one. During the bleeding process, lock to lock many times with engine off, the resevoir on the pump never seemed to suck down any ...
David's user avatar
  • 111
0 votes
0 answers
189 views

2002 GMC Sierra Brakes spongy

I have a 2002 Gmc sierra SLT that I just picked up a few months ago. The issue is that the brakes are awful, and they appear to be an issue the previous owners were chasing down too, all calipers, ...
Rapsicurio's user avatar
1 vote
1 answer
227 views

Where can I find a manual for my old school bus?

My father and I have a 1967 (we think--I have my suspicions that it's a 69-73, due to the fact that the 1967 model for GMC had a different hood) GMC 950 B-Series 12-window bus, long since converted ...
Jazzyamx's user avatar
  • 111
0 votes
2 answers
2k views

Increase volts at OBD port

My fixd scanner only says low voltage. How can I increase the volts at OBD connection my check engine light is on trying to get code. 1999 GMC Sierra 2500 with a 5.3 litre Vortec engine Scanner ...
Jim's user avatar
  • 1
1 vote
1 answer
73 views

5L vortec won’t start

Ok, so I hope this doesn’t seem like a stupid question. Take away all logical scenarios and just answer in theory. If a timing chain could jump exactly 180’ would the intake and exhaust valves reverse ...
Chris's user avatar
  • 11
2 votes
1 answer
3k views

How do you disable Hill Start Assist in Chevrolet Suburban?

I have a 2016 Chevrolet Suburban (Z71). How do I disable HSA? After $6,000 in transmission and brake repairs due to HSA, I would really like to turn it off. Here is the problem: I stop on a hill. ...
DarkerIvy's user avatar
  • 121
1 vote
2 answers
201 views

Power steering leak in 82 GMC truck

I have a 1982 GMC K1500. This junction where the steering column connects to this other part is moist and occasionally drips a reddish fluid. What is this other part called and what is involved in ...
Dan's user avatar
  • 11
1 vote
0 answers
198 views

GMC VLOM replacement necesssary

I replaced the head on a 2012 gmc 5.3 vortec. Now getting codes of 3401,3425,3443 & 3449. Being told it is always necessary to replace VLOM when doing this kind of work. Is that true?
Pete's user avatar
  • 11
0 votes
1 answer
233 views

94 Suburban 4x4 4l60e no reverse/ overdrive

94 Suburban 1500. Has no reverse or any other gear with the TCC plugged in. Unplugged the TCC and I can manually shift through the 4 gears and do 90 plus mph. So it's an electronic issue. Any guess??? ...
user54016's user avatar
1 vote
1 answer
90 views

Tire pressure and new tires

I bought new tires in September. I have returned to the place I purchased them many times due to malfunctions. I feel like I am putting air in my tires all of the time. I know with temperature change ...
Stephanie Ramirez's user avatar
2 votes
0 answers
53 views

2010 GMC Terrain misfires & leans codes

My 2010 GMC Terrain while maintaining a speed of around 60 - 70 mph starts to hesitate and if I don't release my foot from the pedal I will get flashing check egine. I've noticed it likes to happen ...
Nick Speten's user avatar
1 vote
2 answers
762 views

Why does my van battery have three terminals, and how can I replace it?

The battery in our (converted) 1991 GMC G2500 Vandura has a battery with three terminals, which I believe is now dead (reads half a volt with multimeter). I'm guessing the second positive terminal is ...
alvion's user avatar
  • 113
1 vote
0 answers
36 views

What engine do I have, based on my casting number?

I have a 1965 GMC TRUCK 3 speed short bed stepside. The casting number is TI1I3CZM. How can I figure out what engine I have? My truck is a step side short bed Chevy.
user50835's user avatar
2 votes
1 answer
116 views

2012 Yukon Trailer Brake Controller not working

I have a 2012 GMC Yukon with a trailer brake controller that has worked fine for the past 5 years. Now all of a sudden, my trailer brakes won't operate. I tested the voltage between ground and the ...
Chris Rasko's user avatar
2 votes
1 answer
653 views

Tire popped and shredded inside, Should I attempt an at home repair or buy wheels and drive it to a mechanic?

So my bearings were messed up and as I was coming home one night the right tire popped on me and I freaked and kept driving home. Once I got home I had realized the tire fell off the rim and shredded ...
Jose's user avatar
  • 21
0 votes
1 answer
15k views

No pressure in clutch after bleeding the system

I have a 1992 GMC C2500. When I got it there was no pressure at all in the clutch. I bleed it from the bleed valve for about 20 minutes to make sure there was no more air bubbles coming out. After all ...
Rykerblade's user avatar
4 votes
1 answer
275 views

2015 GMC truck check engine light no longer on

Had my check engine light on. Put a code reader on it to see what it was. It went off on its own a few days later. Went to dealership and told them what the code reader said it was before it went ...
Deanna's user avatar
  • 41
0 votes
0 answers
354 views

1997 gmc jimmy Car cranks but wont start

So we have a 1997 jimmy GMC that has been running very well for quite a while. One day suddenly the car would not start. We had a couple of friends look at it and they said it might be the fuel pump ...
Cameron Frakes's user avatar