GMC P25 service by top-rated mechanics at the convenience of your home or office

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How much does GMC P25 repair and maintenance cost?

The cost depends on your car, the type of service, and where you live. Here are estimates for a selection of GMC P25 services.

Service Estimate Dealer Estimate Your Savings Location
Service type Oil Change for 1976 GMC P25 L6-4.8L Estimate $93 Dealer Estimate $143 Savings 34.91% Location Denver, CO
Service type Differential/Gear Oil Replacement for 1977 GMC P25 L6-4.8L Estimate $96 Dealer Estimate $135 Savings 28.62% Location Denver, CO
Service type Differential/Gear Oil Replacement for 1975 GMC P25 L6-4.8L Estimate $96 Dealer Estimate $135 Savings 28.62% Location Denver, CO
Service type Differential/Gear Oil Replacement for 1976 GMC P25 L6-4.8L Estimate $96 Dealer Estimate $135 Savings 28.62% Location Denver, CO
Service type Differential/Gear Oil Replacement for 1978 GMC P25 V8-5.7L Estimate $96 Dealer Estimate $135 Savings 28.62% Location Denver, CO
Service type Oil Change for 1977 GMC P25 L6-4.8L Estimate $93 Dealer Estimate $143 Savings 34.91% Location Denver, CO
Service type Differential/Gear Oil Replacement for 1975 GMC P25 V8-5.7L Estimate $96 Dealer Estimate $135 Savings 28.62% Location Denver, CO
Service type Differential/Gear Oil Replacement for 1976 GMC P25 V8-5.7L Estimate $96 Dealer Estimate $135 Savings 28.62% Location Denver, CO

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Meet some of our expert GMC P25 mechanics

Barry

Barry

24 Reviews; 28 years of experience
New brakes successfully installed. He had to reschedule for the next day and then ran a little late, but he called both times to notify me with a good margin (the day before, and about an hour before, respectively). There was a little extra charge for removing a bolt/screw thing that he had to take off by force since it was stripped, but it wasn't too crazy. I saved about $60 over doing this with Firestone, and for me it was a pretty good experience.
Kansas City, MO
March 22
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Zachary

Zachary

4 Reviews; 16 years of experience
Zachary is great! He returned and installed the serpentine belt and tension adjuster for my Envoy. My car hasn't run so well in years! I highly recommend Zachary!
Denver, CO
August 10
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Jason

Jason

5 Reviews; 8 years of experience
Very Knowledgeable
Gwynn Oak, MD
November 21
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Answers to common GMC P25 questions

Q: High rpms and no acceleration
Answered by Jeff
This may be a result of low transmission fluid (https://www.yourmechanic.com/services/transmission-fluid-service) or potentially a faulty transmission control module. A faulty transmission control module may cause a delay in acceleration or erratic shifting of gears. The transmission control module has various sensors...
Q: Check Engine light repeatedly lights up no matter what
Answered by Jay
There is an original equipment manufacturer (OEM) campaign 14515b that is calling for the chassis control module. The module has a problem that it has corrosion internally causing random check engine lights and possible engine stall or fail to start....
Q: I am looking into doing a engine swap on a 2006 gmc envoy xl 4.2 Liter engine 6 cylinder
Answered by Tim
Hi there. Unfortunately, this is not a service we offer. Your best bet is to search for an engine replacement shop locally. They will be better equipped to provide you with the correct recommendation.
Q: 2005 GMC with Denali transmission grinding in all gears including neutral. It will not accelerate and also doesn't have park.
Answered by Marvin
Hi there. Your transmission is slipping all of the gears inside and may be due to a broken stator clutch and a broken torque converter. A torque converter that has failed will cause a grinding noise if the stator breaks...

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Trusted by thousands of happy car owners



Tim was great; offered advice instead of just blindly fixing. Also Tim was super friendly and very genuine. Highly recommend!



Very impressed with the quality of work. Ned was on time and on budget. There were no surprise extra costs. Ned even helped me out with my other car, even though I didn't have an appointment for the other car. He took care of all of my car problems and he even found me a coupon for an oil change. I will be using this service again.



Patrick was very professional and polite. He inspected my car and found that it wasn't as bad as I thought it was. He is very friendly and I would DEFINATELY recommend Patrick to all my family, friends and co-workers.

How can we help?

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