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GMC R1500 Suburban Pressure Test Radiator Cap at your home or office.

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Pressure Test Radiator Cap Service

How much does a Pressure Test Radiator Cap cost?

On average, the cost for a GMC R1500 Suburban Pressure Test Radiator Cap is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1991 GMC R1500 SuburbanV8-6.2L DieselService typePressure Test Radiator CapEstimate$114.99Shop/Dealer Price$124.99 - $132.49
1989 GMC R1500 SuburbanV8-6.2L DieselService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$105.01 - $112.52
1987 GMC R1500 SuburbanV8-6.2L DieselService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$105.01 - $112.52
1988 GMC R1500 SuburbanV8-5.7LService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$104.99 - $112.48
1990 GMC R1500 SuburbanV8-6.2L DieselService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$105.02 - $112.55
1987 GMC R1500 SuburbanV8-5.0LService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$105.01 - $112.52
1987 GMC R1500 SuburbanV8-5.7LService typePressure Test Radiator CapEstimate$99.99Shop/Dealer Price$109.87 - $117.28
1990 GMC R1500 SuburbanV8-5.7LService typePressure Test Radiator CapEstimate$99.99Shop/Dealer Price$110.24 - $117.94
Show example GMC R1500 Suburban Pressure Test Radiator Cap prices

What is the radiator cap pressure test all about?

In a pressurized cooling system like those found on all cars, your car’s radiator cap is calibrated to seal in coolant to a particular pressure point, then allow some vapor to escape once that threshold has been reached. The ejected fluid is piped into the overflow bottle you might have seen in the engine bay. Then, as the engine cools, the coolant level may drop inside radiator. When that happens, a reverse-flow valve in the radiator cap opens to allow fluid from the bottle to return to the radiator. A radiator cap that isn’t working properly may cause too much fluid to escape the system.

Keep in mind:

  • A radiator cap pressure test is quick and simple, and replacement radiator caps are inexpensive.
  • Leaving a defective radiator cap in place can cause damage to the engine.

How it's done:

  • The vehicle engine is cooled before the radiator cap can be removed
  • The radiator pressure is relieved and the cap is removed
  • The radiator cap is pressure tested to specifications
  • The radiator cap is replaced and/or reinstalled to the radiator
  • The vehicle is verified to confirm problem is fixed

Our recommendation:

If your car’s engine overheats, or the overflow bottle seems overly full, have the radiator (and radiator cap) pressure tested.

What are the common symptoms indicating you need to pressure test the radiator cap?

  • Car overheats
  • Car’s overflow bottle fills up

How important is this service?

Not having this safety valve on the car’s cooling system operate properly can over- or under-pressurize the system, leading to damage to hoses, the radiator, and even the car’s cylinder head.

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Rating Summary
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2,788
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Joel

21 years of experience
987 reviews
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Joel
21 years of experience
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by Lawrence
GMC R1500 Suburban V8-5.7L - Steering wheel feels loose - Jacksonville, Florida
Very knowledgeable

Todd

26 years of experience
95 reviews
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Todd
26 years of experience
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by George
GMC Sierra 1500 V8-4.8L - Pressure Test Radiator Cap - Newport News, Virginia
Todd was early for my appointment !! That is a good thing !! Todd was very professional and knowledgeable !! He took the time to show me what my issue was !! I have scheduled Todd to return and make the necessary repair !! I am extremely happy with the experience. Thanks Todd

TJ

26 years of experience
362 reviews
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TJ
26 years of experience
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by Susan
GMC Envoy L6-4.2L - Axle / CV Shaft Assembly Replacement (Driver Side Front) - Denver, Colorado
TJ arrived at our house exactly on time and replaced an axle/CV shaft assembly on my GMC Envoy. His work is excellent, and he is very knowledgeable, detail-oriented, and easy to talk with. He answered all our questions perfectly, and made sure we understood his answers. We had no worries at all about his work. Due to physical limitations, it is difficult for us to go to a garage - We are very thankful that he is able to come to our house and work on our vehicles. It's like having a good friend who is an excellent mechanic, too! We always look for TJ when we need to have automotive work done, and we highly recommend him to all! Thank you TJ! :)

Ramon

20 years of experience
166 reviews
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Ramon
20 years of experience
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by Sam
GMC K1500 V6-4.3L - Brake System Flush - Tucson, Arizona
Very knowledgeable and professional. I will ask for Ramon when having future work done.

Excellent Rating

(2,948)
Rating Summary
2,788
79
21
10
50
2,788
79
21
10
50
Number of GMC services completed
32428+
services done by our mechanics
TOTAL NUMBER OF EXPERT GMC MECHANICS
900+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

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