GMC S15 Cooling System Flush at your home or office.

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Cooling System Flush Service

How much does a Cooling System Flush cost?

On average, the cost for a GMC S15 Cooling System Flush is $273 with $63 for parts and $210 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1990 GMC S15V6-2.8LService typeCooling System FlushEstimate$397.18Shop/Dealer Price$443.75 - $571.31
1990 GMC S15L4-2.5LService typeCooling System FlushEstimate$383.67Shop/Dealer Price$427.59 - $553.16
1990 GMC S15V6-4.3LService typeCooling System FlushEstimate$383.67Shop/Dealer Price$427.62 - $553.23
Show example GMC S15 Cooling System Flush prices

What is the cooling system flush all about?

Your cooling system is what keeps your car from overheating. It works by circulating a mixture of water and coolant through the engine. Over time the coolant mixture becomes contaminated with scale and rust, which can clog and damage the cooling system components. A cooling system flush essentially flushes out the entire system of contaminants and replaces the coolant mixture with fresh coolant and water.

Keep in mind:

Your mechanic will drain the fluid, clean the system with coolant cleaner, and use water to remove the remaining coolant. After cleaning the system, the mechanic will fill it up with new coolant. This process is effective and an approved industry method of flushing your vehicle’s cooling system.

How it's done:

  • Install flush chemical to radiator
  • Bring the car to operating temperature
  • Drain the old coolant
  • Close valve and refill with water
  • Repeat the process
  • Fill radiator with a 50/50 mixture of coolant and water
  • Check for leaks and fan operation

Our recommendation:

  • Some vehicles are equipped with a low coolant sensing system. Should this light come on, have your vehicle inspected for leaks or other possible causes for the low coolant level.

  • Follow the service maintenance schedule provided by the manufacturer to get the coolant replaced at regular intervals. In general, it is a good practice to change the coolant every 40,000-50,000 miles.

What are the common symptoms indicating you need to flush the cooling system?

  • Check Engine warning light is on
  • Low Coolant warning light is on
  • Engine is overheating

How important is this service?

A cooling system flush is an important part of preventative maintenance and helps to keep your car healthy and on the road.

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Meet some of our expert GMC mechanics

Real customer reviews from GMC owners like you.

Excellent Rating

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Johnathon

10 years of experience
171 reviews
Johnathon
10 years of experience
GMC S15 V6-2.8L - Air Shocks Replacement (Rear) - Clovis, California
Very good and efficient.

Johnathon

10 years of experience
171 reviews
Johnathon
10 years of experience
GMC S15 V6-4.3L - Tune-up - Fresno, California
Explained everything easily. Didn't seem to be in a rush, and got my vehicle in order. Thank you, Thank you, Thank you!

Timothy

23 years of experience
107 reviews
Timothy
23 years of experience
GMC S15 V6-2.8L - Valve Cover Gasket - Tacoma, Washington
He's great!

Colby

15 years of experience
66 reviews
Colby
15 years of experience
GMC S15 V6-2.8L - Car is overheating - Denver, Colorado
Colby was early and got right to work. Finished quickly and patiently explained issues and solutions.

Excellent Rating

(4)

Rating Summary
4
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Number of GMC S15 services completed
44+
services done by our mechanics
TOTAL NUMBER OF EXPERT GMC MECHANICS
900+
experts on our platform

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