Buick Century 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 Buick Century Pressure Test Radiator Cap is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1987 Buick CenturyL4-2.5LService typePressure Test Radiator CapEstimate$114.99Shop/Dealer Price$124.99 - $132.49
1983 Buick CenturyV6-3.0LService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$105.01 - $112.52
1983 Buick CenturyV6-4.3L DieselService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$105.01 - $112.52
1982 Buick CenturyV6-2.8LService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$104.99 - $112.48
1978 Buick CenturyV8-5.7LService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$105.02 - $112.55
1980 Buick CenturyV8-4.3LService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$105.01 - $112.52
1984 Buick CenturyV6-4.3L DieselService typePressure Test Radiator CapEstimate$99.99Shop/Dealer Price$109.87 - $117.28
1989 Buick CenturyL4-2.5LService typePressure Test Radiator CapEstimate$99.99Shop/Dealer Price$110.24 - $117.94
Show example Buick Century 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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Meet some of our expert Buick mechanics

Real customer reviews from Buick owners like you.

Excellent Rating

(324)

Rating Summary
301
20
0
2
1
301
20
0
2
1

Anthony

27 years of experience
16 reviews
Anthony
27 years of experience
Buick Century V6-3.1L - Pressure Test Radiator Cap - Atlanta, Georgia
Fast

David

14 years of experience
103 reviews
David
14 years of experience
Buick Century V6-3.1L - Steering Rack/Gearbox - Austin, Texas

AL

12 years of experience
234 reviews
AL
12 years of experience
Buick Century V6-3.1L - Engine Mount - Portland, Oregon
It was a good experience. I am confused about the price. The labor charge didn't change even though the appointment took far less than initially expected (less than 2 hours rather than 3.5-4).

Richard

21 years of experience
237 reviews
Richard
21 years of experience
Buick Century V6-3.1L - 60,000 Miles Maintenance Service - Naples, Florida
appointment on time.very satisfied.will use him again

Excellent Rating

(324)

Rating Summary
301
20
0
2
1
301
20
0
2
1
Number of Buick Century services completed
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services done by our mechanics
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