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How much does GMC K25 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 K25 services.

Service Estimate Dealer Estimate Your Savings Location
Service type Oil Change for 1977 GMC K25 V8-5.0L Estimate $85 Dealer Estimate $138 Savings 37.80% Location Denver, CO
Service type Oil Change for 1976 GMC K25 L6-4.8L Estimate $85 Dealer Estimate $138 Savings 37.80% Location Denver, CO
Service type Differential/Gear Oil Replacement for 1977 GMC K25 V8-5.0L Estimate $86 Dealer Estimate $127 Savings 32.43% Location Denver, CO
Service type Oil Change for 1978 GMC K25 L6-4.1L Estimate $85 Dealer Estimate $138 Savings 37.80% Location Denver, CO
Service type Oil Change for 1975 GMC K25 V8-6.6L Estimate $85 Dealer Estimate $138 Savings 37.80% Location Denver, CO
Service type Oil Change for 1975 GMC K25 V8-5.7L Estimate $85 Dealer Estimate $138 Savings 37.80% Location Denver, CO
Service type Oil Change for 1977 GMC K25 V8-5.7L Estimate $85 Dealer Estimate $138 Savings 37.80% Location Denver, CO
Service type Differential/Gear Oil Replacement for 1977 GMC K25 V8-7.4L Estimate $86 Dealer Estimate $127 Savings 32.43% Location Denver, CO

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Meet some of our expert GMC K25 mechanics

Napoleon

Napoleon

47 Reviews; 23 years of experience
Napoleon is was punctional, friendly, professional and low maintenance. I would ask Napoleon to do any job I had for him, with the utmost confidence it'd be done correctly and timely.
North Hollywood, CA
September 11
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Abdul

Abdul

71 Reviews; 7 years of experience
Abdul was terrific. Came to my house while it was raining. Had a good solution quickly to continue to work while it was raining, as I thought we would have to postpone. Great job!!!
Atlanta, GA
October 8
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Answers to common GMC K25 questions

Q: Truck will shift sometimes then it doesn't shift. If you wait a while it will shift again. We are trying to figure out what's going on
Answered by Robert
Hi, thanks for writing in. The first thing I recommend is to make sure the ATF (automatic transmission fluid) is full (https://www.yourmechanic.com/article/how-to-check-and-add-fluid-to-an-automatic-transmission). Does the transmission shift up a gear or two and stay in that gear, or does it drive...
Q: rpm's cutting engine power
Answered by Robert
Hello. This is normal for this truck. Due to the design of the control systems and the variable valve timing, the computer will attempt to adjust everything during this type of maneuver. Using an aftermarket computer programmer (https://www.yourmechanic.com/article/how-to-make-your-car-perform-better-by-robert-tomashek) can make...
Q: The truck has problems with lights
Answered by Andrew
You may have a shorted wire between your reverse lights and your brake lights. This is a common issue due to the fact that the wires for these two lights are often wrapped together as one wiring harness. If your...
Q: Popping noise when turning the car
Answered by Victor
Hi and thank you for contacting YourMechanic. There are 2 main causes for this popping sound. First off, your tie rod end (https://www.yourmechanic.com/services/tie-rod-end-replacement) needs to be replaced. A quick check for this is if you notice that when you turn...

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Most recent GMC K25 recalls

SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM

Manufacturer’s report date:
August 7, 2000
NHTSA campaign ID number:
00V222000
LEARN MORE

SEATS

Manufacturer’s report date:
May 19, 1999
NHTSA campaign ID number:
99V130000
LEARN MORE

SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY:U-BOLT, LEAF SPRING TO AXLE

Manufacturer’s report date:
May 6, 1996
NHTSA campaign ID number:
96V082000
LEARN MORE

SEATS

Manufacturer’s report date:
December 20, 1995
NHTSA campaign ID number:
95V246000
LEARN MORE

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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.



Tom went above and beyond to make me as satisfied as I could be. His communication was excellent. Friendly and professional and best if all, my car is running great and he did it without unnecessary repairs. I would and will highly recommend Tom and Your Mechanic to everyone. Thanks, Rob Miller.



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

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