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I have a 2008 GMC 1500 z71 the trec fuse keeps blowing. I
I have a 2008 GMC 1500 z71 the trec fuse keeps blowing. I have replaced the shift motor, the selector switch, and the actuator. I also cleaned up the ground wire under the driver door on the frame rai… read more
BRIAN
BRIAN
Program Coordinator/Professor Automotive
BS
369 satisfied customers
2004 GMC Sierra 4wd, transfer case shifting into 4 wd low on
2004 GMC Sierra 4wd, transfer case shifting into 4 wd low on its own. Tires lock up, truck skids to a stop. You can then hear the transfer case shifting motor operating. … read more
Dan
Dan
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Vocational, Technical or Trade Scho
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I have a 2001 2500 suburban with a 8.1 has push buttio. 4x4
I have a 2001 2500 suburban with a 8.1 has push buttio. 4x4 with the auto button truck is a automatic. Just bought this thing so don't have any history on it. Here is what it does while driving in 2wh… read more
Jared D
Jared D
Shop Supervisor
Bachelor's
2,521 satisfied customers
2007 duramax , four wheel drive not working. Shift
four wheel drive not working. Shift motor on tc seems to be working. all lights come on shift selector like they should. front drive shaft actuator seems to work. unplugged actuator and shifted tc into four wheel and could rotate front drive line. pluged actuator back in and drive line locked up so don't think its the actuator … read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
32,361 satisfied customers
I have a 2008 GMC Sierra 4x4 with 177k miles. last couple of
I have a 2008 GMC Sierra 4x4 with 177k miles. For the last couple of months, there is a problem with it popping out of gear when taking off. The motor revs a little and when it revs down it will make … read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
I have a 2005 GMC Sierra 1500 z71. When I put my truck in
I have a 2005 GMC Sierra 1500 z71. When I put my truck in 2WD(push button) it will run about 100yds then pop out of gear...I can run in auto(push button) no problem except when it seems to want to go … read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
32,361 satisfied customers
This question is expert on GMC drivelines and transmissions,
This question is for an expert on GMC drivelines and transmissions, specifically my 1999 Yukon 4WD transfer case. The vehicle has 100k miles on it. About 4-years ago, I had the rear engine seal replac… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
36,750 satisfied customers
GMC Sierra slt 4wd: Hi Cam. My truck is a 2004 GMC extended
Hi Cam. My truck is a 2004 GMC extended cab slt 4WD. I keep it well maintained and the 4WD worked perfect only until a couple of days ago. It just disengaged on its own. There are no warnings lighting… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
36,750 satisfied customers
Gmc Sonoma 4x4: I have a 96 gmc sonoma. It has a constant tapping
I have a 96 gmc sonoma. It has a constant tapping noise when I'm driving around in 2wd. It use to come once in a while and it would stop when I came to a complete stop but it would clunk. I can feel a… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
GMC ENVOY: I have a 2002 GMC Envoy, SLE, with a six cylinder
I have a 2002 GMC Envoy, SLE, with a six cylinder motor.XXXXX When I have it in 4 wheeldrive and then shift it intoXXXXXit seems good and away I drive. But unexpectedly the thing goes into neutral, th… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
32,361 satisfied customers
2001 gmc ext cab 1500 4wd works only in high range...try to
2001 gmc ext cab 1500 4wd works only in high range...try to engage in low range light flashes then goes back to high… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
32,361 satisfied customers
GMC 2500 Series: I have a 2007 2500 HD Duramax Classic 170,000
I have a 2007 2500 HD Duramax Classic 170,000 KM. My concern is when I'm at speeds over 40 Kmh and I let off the gas and cost I can here and feel a vibration/humming coming from the drive train. When … read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
32,361 satisfied customers
GMC 2500hd 4x4: OK, Code showed "encoder sensor faulty"., replaced
OK, Code showed "encoder sensor faulty"., replaced the sensor ring, still no switching on dashboard when key on. (dealer checked switch, says its ok.) what is the next step?… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
32,361 satisfied customers
GMC Sierra 1500 Classic SLT: I have 2005 GMC Serra quard cab
I have 2005 GMC Serra quard cab 4x4 SLT push button on the dash. In winter tryed to use my 4-wheel low.light flashes but wont stay engased. I then tryed to run in all TF Gears ,thinging it mght br sti… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
32,361 satisfied customers
GMC Sierra 2500 HD: Hi Cam I wrote to asking about my 4
Hi Cam I wrote to asking about myXXXXXnot working. I changed the front diff. actuator andXXXXXstill not work. You advised me to lift one front wheel, put inXXXXX remove the actuator and push on the pl… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
32,361 satisfied customers
GMC 2500 HD Pickup: Hi, I have a 2003 GMC 2500 HD diesel pickup
Hi, I have a 2003 GMC 2500 HD diesel pickup truck. TheXXXXXsystem is not working. I have power at the switches on the dash and I have replaced the shifting mechanism on the differential. When I push o… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
32,361 satisfied customers
GMC H3: 2006 Hummer H3 I was driving when all of a sudden
2006 Hummer H3 I was driving when all of a sudden I was just revving! Pulled over but would not go into D or Reverse. I have 4WD also and put in 4H and would drive and reverse for a short time. Now it… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
32,361 satisfied customers
Hello,I have 1998, 350-Engine, 4x4 manual transmission (4WD
Hello,I have 1998, 350-Engine, 4x4 manual transmission (4WD lever type not the electronic button type), 2-cabin GMC HD3500 pick up with long bed. I bought it a week ago and there was no problem when d… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
32,361 satisfied customers
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Meet the Experts:

Gm Tech (Cam)

Gm Tech (Cam)

GMC Mechanic

32,361 satisfied customers

GM Grand Master Technician 2007. 14 year experience.

Gary

Gary

ASE Certified Technician

1,589 satisfied customers

GCM master tech over 25 years

Dave Nova

Dave Nova

GMC Technician

929 satisfied customers

ASE Master Certification. GM World Class Certification

Chris (aka-Moose)

Chris (aka-Moose)

GMC Technician

904 satisfied customers

24 years of experience diagnosing & repairing

JFN1

JFN1

ASE Certified Technician

272 satisfied customers

GM Master Technician

Mike S.

Mike S.

ASE Certified Technician

256 satisfied customers

GMC N.A.I.S.E. Certified Auto-Mechanic

George H.

George H.

ASE MasterTechnician

233 satisfied customers

15+ Years ASE Master Technician with Level 1 Certification

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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