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.

YourMechanic Price
$70 to $80
Labor: $70 -$80
Parts: $0
Average Dealer price
$93
Average Shop price
$83
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Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%
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ServiceYourMechanic PriceShop/Dealer Price
Pressure Test Radiator Cap for 1988 Ford E-350 Econoline Club Wagon V8-7.5LYourMechanic Price$70.00Shop/Dealer Price$84.52 - $95.41
Pressure Test Radiator Cap for 2001 Mercury Grand Marquis V8-4.6LYourMechanic Price$70.00Shop/Dealer Price$84.59 - $95.53
Pressure Test Radiator Cap for 2005 Cadillac STS V8-4.6LYourMechanic Price$70.00Shop/Dealer Price$95.45 - $114.54
Pressure Test Radiator Cap for 1984 Plymouth Conquest L4-2.6L TurboYourMechanic Price$70.00Shop/Dealer Price$84.56 - $95.49
Pressure Test Radiator Cap for 1995 Lexus GS300 L6-3.0LYourMechanic Price$70.00Shop/Dealer Price$95.43 - $114.50
Pressure Test Radiator Cap for 2011 GMC Yukon V8-6.2LYourMechanic Price$70.00Shop/Dealer Price$84.52 - $95.40
Pressure Test Radiator Cap for 1972 Ford Country Squire V8-6.6LYourMechanic Price$70.00Shop/Dealer Price$84.61 - $95.56
Pressure Test Radiator Cap for 1978 Dodge Diplomat L6-3.7LYourMechanic Price$70.00Shop/Dealer Price$84.59 - $95.52
Show example Pressure Test Radiator Cap prices

Pressure Test Radiator Cap Service & Cost

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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Meet some of our expert mechanics

Real customer reviews from owners like you.

10 reviews
Max
12 years of experience
Max was very helpful and honest with me, which I greatly appreciated.
2004 KIA OPTIMA - CAR IS NOT STARTING INSPECTION
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4 reviews
Charles
20 years of experience
Very professional and helpful. Scheduled a presale inspection at the last second, and he was knowledgeable and efficient. Will use this mechanic again soon!
2016 JEEP PATRIOT - PRE-PURCHASE CAR INSPECTION
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3 reviews
Peter
16 years of experience
Peter was great. He arrived on time at the dealership and gave me a courtesy follow-up call before posting the final report to make sure there wasn't anything else specific that I needed. Definitely recommended
2012 BMW 135I - PRE-PURCHASE CAR INSPECTION
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2 reviews
Eric
11 years of experience
Great service by Eric also very polite, thanks Eric !! I also want to say that Eric did a great job too on getting the part that was needed for my vehicle!!! Thanks Eric for taking care of your customer!!!
2007 HONDA CIVIC - STARTER REPLACEMENT
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Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%
Get a quote
ServiceYourMechanic PriceShop/Dealer Price
Pressure Test Radiator Cap for 1988 Ford E-350 Econoline Club Wagon V8-7.5LYourMechanic Price$70.00Shop/Dealer Price$84.52 - $95.41
Pressure Test Radiator Cap for 2001 Mercury Grand Marquis V8-4.6LYourMechanic Price$70.00Shop/Dealer Price$84.59 - $95.53
Pressure Test Radiator Cap for 2005 Cadillac STS V8-4.6LYourMechanic Price$70.00Shop/Dealer Price$95.45 - $114.54
Pressure Test Radiator Cap for 1984 Plymouth Conquest L4-2.6L TurboYourMechanic Price$70.00Shop/Dealer Price$84.56 - $95.49
Pressure Test Radiator Cap for 1995 Lexus GS300 L6-3.0LYourMechanic Price$70.00Shop/Dealer Price$95.43 - $114.50
Pressure Test Radiator Cap for 2011 GMC Yukon V8-6.2LYourMechanic Price$70.00Shop/Dealer Price$84.52 - $95.40
Pressure Test Radiator Cap for 1972 Ford Country Squire V8-6.6LYourMechanic Price$70.00Shop/Dealer Price$84.61 - $95.56
Pressure Test Radiator Cap for 1978 Dodge Diplomat L6-3.7LYourMechanic Price$70.00Shop/Dealer Price$84.59 - $95.52
Show example Pressure Test Radiator Cap prices

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com