Lexus NX450h+ 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 NX450h+ Pressure Test Radiator Cap is $105 with $0 for parts and $105 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2022 Lexus NX450h+L4-2.5L HybridService typePressure Test Radiator CapEstimate$124.99Shop/Dealer Price$133.39 - $139.69
Show example Lexus NX450h+ 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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4,627
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Lucas

30 years of experience
938 reviews
Lucas
30 years of experience
Lexus ES330 V6-3.3L - Pressure Test Radiator Cap - Los Angeles, California
Fixed things I didn't even ask for!

Matthew

34 years of experience
1438 reviews
Matthew
34 years of experience
Lexus ES350 V6-3.5L - Car is not starting - Hampton, Virginia
this was my first experience with mobile mechanic. I appreciated Matthews promptness, fairness, and his expert opinion. I will be booking my future repairs with him and will highly recommend him. So much more convenient than the shop.

Oscar

22 years of experience
162 reviews
Oscar
22 years of experience
Lexus LX470 V8-4.7L - Pre-purchase Car Inspection - Houston, Texas
Excellent Mechanic. Honest, Professional, Helpful. I would definitely book again.

Nathan

15 years of experience
26 reviews
Nathan
15 years of experience
Lexus RX350 V6-3.5L - 100,000 Miles Maintenance Service - Eugene, Oregon
He arrived early, was in communication the whole time. Service was performed quickly and efficiently. Would definitely recommend him to others.

Excellent Rating

(4,901)

Rating Summary
4,627
135
36
19
84
4,627
135
36
19
84
Number of Lexus services completed
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services done by our mechanics
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