GMC Sonoma 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 Sonoma Cooling System Flush is $292 with $82 for parts and $210 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1998 GMC SonomaL4-2.2LService typeCooling System FlushEstimate$397.18Shop/Dealer Price$443.75 - $571.31
2000 GMC SonomaL4-2.2LService typeCooling System FlushEstimate$383.67Shop/Dealer Price$427.59 - $553.16
1997 GMC SonomaL4-2.2LService typeCooling System FlushEstimate$383.67Shop/Dealer Price$427.62 - $553.23
1993 GMC SonomaL4-2.5LService typeCooling System FlushEstimate$383.67Shop/Dealer Price$427.62 - $553.22
1994 GMC SonomaL4-2.2LService typeCooling System FlushEstimate$383.67Shop/Dealer Price$429.83 - $557.09
1992 GMC SonomaV6-2.8LService typeCooling System FlushEstimate$383.67Shop/Dealer Price$427.83 - $553.59
2002 GMC SonomaV6-4.3LService typeCooling System FlushEstimate$383.67Shop/Dealer Price$427.65 - $553.26
1994 GMC SonomaV6-4.3LService typeCooling System FlushEstimate$383.67Shop/Dealer Price$427.62 - $553.22
Show example GMC Sonoma 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

(96)

Rating Summary
92
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Alex

23 years of experience
112 reviews
Alex
23 years of experience
GMC Sonoma V6-4.3L - Car is not starting - Gilbert, Arizona
i could not figure out why my sonoma was not running. So i booked Alex and he came over and found that it was a timing issue and got my truck running in no time

Milton

38 years of experience
239 reviews
Milton
38 years of experience
GMC Sonoma V6-4.3L - Car is not starting - Las Vegas, Nevada
resolved my problem and gave me great advice. Thanks Milton!

David

22 years of experience
107 reviews
David
22 years of experience
GMC Sonoma V6-4.3L - Brake Pads Replacement (Front, Rear) - Littleton, Colorado
While David was an hour late for the appointment, it was unavoidable and he called twice to update me on his arrival time. Upon arrival he went right to work on diagnosing the problems with my vehicle. He told me I needed new brake pads and the rotors turned but because my vehicle was older and I seldom drove it and then for short distances at low speeds, I didn't really need to spend the extra money on turning the rotors. He also diagnosed why the engine light was on as a minor sensor problem that didn't affect the functioning or safety of the vehicle. He gave me the pricing for repair but said it just wasn't something I needed to spend money on if I didn't want to. Having a mechanic tell me what I didn't need to spend money on instead of trying to squeeze every dime out of me is a new experience. It was like having a buddy who's an ace mechanic stop by and fix my car in his spare time. On top of all this, he discounted an hour plus another $20 for being late, so I ended up paying almost $80 less than the on-line estimate I received. Try finding a garage that would do that.

Kiri

21 years of experience
372 reviews
Kiri
21 years of experience
GMC Sonoma L4-2.2L - Car is not starting - Bryn Mawr, Pennsylvania
This is not the first time we used Kiri to service a vehicle. He is great and would highly reccomend him.

Excellent Rating

(96)

Rating Summary
92
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Number of GMC Sonoma services completed
1056+
services done by our mechanics
TOTAL NUMBER OF EXPERT GMC MECHANICS
900+
experts on our platform

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