Radiator Cap Pressure Test Service at your home or office.

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How much does Pressure Test Radiator Cap cost?

It depends on the type of car you drive and the auto repair shop you go to. Our mechanics are mobile, which means they don't have the overhead that repair shops have. They provide you convenience by coming to your home or office.

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2004 Ford F-350 Super Duty $70 $0.00 $70.00 34% $107.50
2004 Isuzu Ascender $70 $0.00 $70.00 34% $107.50
2011 GMC Sierra 1500 $70 $0.00 $70.00 34% $107.50
2008 Cadillac CTS $70 $0.00 $70.00 34% $107.50
2014 Cadillac ELR $70 $0.00 $70.00 34% $107.50
2010 Audi S6 $70 $0.00 $70.00 34% $107.50
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Pressure Test Radiator Cap Service

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.

Fast and easy Pressure Test Radiator Cap service at your home or office.

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Recent Pressure Test Radiator Cap reviews

Excellent Rating


YourMechanic Pressure Test Radiator Cap Service

Average Rating

5/5

Number of Reviews

21

Rating Summary
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Lucas

18 years of experience
767 reviews
Lucas
18 years of experience
Fixed things I didn't even ask for!
2004 LEXUS ES330 - PRESSURE TEST RADIATOR CAP - LOS ANGELES, CALIFORNIA

Todd

23 years of experience
11 reviews
Todd
23 years of experience
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
2003 GMC SIERRA 1500 - PRESSURE TEST RADIATOR CAP - NEWPORT NEWS, VIRGINIA

Peter

40 years of experience
1059 reviews
Peter
40 years of experience
Great job! Very helpful.
1999 CHEVROLET MALIBU - PRESSURE TEST RADIATOR CAP - GLENDALE, ARIZONA

Darwin

15 years of experience
15 reviews
Darwin
15 years of experience
Darwin was an absolutely terrific mechanic. He was punctual, professional, friendly, and did the job as promised. And in good time, too. He first came to do an inspection for a coolant leak, and within the hour, he pinpointed the problem. Through the site, I requested him for the next day to do the recommended fixes. When he showed up, he detailed what he was going to do and how long it would take him. If anything unexpected popped up while he was working, he always made sure to notify me and make sure I was okay with how he would proceed. In terms of maintenance, he told me what I could fix next in the future, detailing exactly what I would need to prioritize. Incredibly professional and very friendly. I'll for sure be recommending him to anyone that is looking for a mechanic. Thanks, Darwin!
1997 HONDA ACCORD - PRESSURE TEST RADIATOR CAP - SANTA BARBARA, CALIFORNIA

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