Lexus GS430 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 Lexus GS430 Pressure Test Radiator Cap is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2002 Lexus GS430V8-4.3LService typePressure Test Radiator CapEstimate$114.99Shop/Dealer Price$132.49 - $145.62
2006 Lexus GS430V8-4.3LService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$112.52 - $125.67
2005 Lexus GS430V8-4.3LService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$112.52 - $125.67
2001 Lexus GS430V8-4.3LService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$112.48 - $125.60
2007 Lexus GS430V8-4.3LService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$112.55 - $125.72
2004 Lexus GS430V8-4.3LService typePressure Test Radiator CapEstimate$94.99Shop/Dealer Price$112.52 - $125.67
2003 Lexus GS430V8-4.3LService typePressure Test Radiator CapEstimate$99.99Shop/Dealer Price$117.28 - $130.25
Show example Lexus GS430 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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Real customer reviews from Lexus owners like you.

Excellent Rating

(34)

Rating Summary
32
2
0
0
0
32
2
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Diego

21 years of experience
564 reviews
Diego
21 years of experience
Lexus GS430 V8-4.3L - Fuel Pressure Regulator Replacement - Laveen, Arizona
Excellent mechanic 

Joel

21 years of experience
987 reviews
Joel
21 years of experience
Lexus GS430 V8-4.3L - Alternator Repair - Jacksonville, Florida
Nice guy ..very professional he was in and out.

Marcus

8 years of experience
66 reviews
Marcus
8 years of experience
Lexus GS430 V8-4.3L - Alternator - Upper Marlboro, Maryland
Great mechanic; with an awesome and friendly personality.

Jason

20 years of experience
69 reviews
Jason
20 years of experience
Lexus GS430 V8-4.3L - Alternator - Visalia, California
Thanks you for your timely work and precision

Excellent Rating

(34)

Rating Summary
32
2
0
0
0
32
2
0
0
0
Number of Lexus GS430 services completed
374+
services done by our mechanics
TOTAL NUMBER OF EXPERT Lexus MECHANICS
1100+
experts on our platform

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