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How much does GMC P15 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 P15 services.

Service Estimate Savings Dealer Estimate Location
Service type Brake Rotor/Disc - Front Replacement for 1975 GMC P15 L6-4.8L Estimate $286 Savings 41.01% Dealer Estimate $485 Location Denver, CO
Service type Car AC Repair for 1975 GMC P15 L6-4.8L Estimate $196 Savings 38.84% Dealer Estimate $321 Location Denver, CO
Service type Differential/Gear Oil Replacement for 1978 GMC P15 L6-4.8L Estimate $91 Savings 30.47% Dealer Estimate $131 Location Denver, CO
Service type Windshield Wiper Motor - Front Replacement for 1978 GMC P15 L6-4.8L Estimate $186 Savings 42.00% Dealer Estimate $320 Location Denver, CO
Service type Brake Master Cylinder Replacement for 1978 GMC P15 L6-4.8L Estimate $176 Savings 41.46% Dealer Estimate $300 Location Denver, CO
Service type Drive Belt Tensioner Replacement for 1975 GMC P15 L6-4.8L Estimate $118 Savings 36.23% Dealer Estimate $186 Location Denver, CO
Service type Steering Rack/Gearbox Replacement for 1978 GMC P15 L6-4.8L Estimate $360 Savings 44.47% Dealer Estimate $649 Location Denver, CO
Service type Brake Master Cylinder Replacement for 1975 GMC P15 L6-4.8L Estimate $168 Savings 40.56% Dealer Estimate $284 Location Portland, OR

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Answers to common GMC P15 questions

Q: Suburban won't start after sitting
Answered by Mia
I would start by having the battery charged and tested. More than likely, however, the battery will require replacement since the vehicle has been sitting for years. There is no reason to assume the starter went bad just from sitting....
Q: How many crankshaft position sensors are on a 2011 GMC Terrain?
Answered by Andrew
Usually there will only be one crankshaft position sensor. However, there is also a camshaft position sensor as well. It is more likely that there is multiple cam sensors than crank sensors. It is possible for engines to have anywhere...
Q: Engine chugging at low speeds when the weather is bad
Answered by James
It is very possible that moisture is getting into the connectors of the engine control module (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-engine-control-module-ecm). The connectors should be checked and cleaned if necessary. Di-electric grease can be used to help seal the connectors and keep the moisture...
Q: I have a 2010 GMC Terrain that is overheating. I found out it only had about a quart of coolant.. what is my next step?
Answered by Kevin
If the car is still overheating, even after filling the coolant system (and making sure there is no trapped air, which itself will cause overheating) just request an overheating diagnostic (https://www.yourmechanic.com/services/car-is-overheating-inspection) during which a certified mechanic will determine which of...

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