Vacuum Leak Diagnosis Cost

Vacuum Leak Diagnosis Estimate (National Average)

$88
to
$111
Validated estimate range for national average.

The average cost for a Vacuum Leak Diagnosis is between $88 and $111. Labor costs are estimated between $88 and $111 while parts are priced between $0 and $0.Get a personalized estimate based on your location and specific car. Estimate does not include taxes and fees.

Parts & Labor Breakdown
Estimate does not include taxes and fees.
Labor: $88 - $111
Estimate does not include taxes and fees.Parts: $0 - $0Labor: $88 - $111
Included Parts

No parts required.

Best Practices

When locating a vacuum leak, we recommend using a smoke machine to find all of the areas that are leaking. 

After all of the known vacuum leaks are repaired, we recommend performing a drive cycle test drive to verify that the air-to-fuel ratio has returned to normal.

Common Symptoms

When an engine has a vacuum leak, it may:

1. Idle rough

2. Be hard to start and/or keep running when cold

3. Misfire

4. Hesitate under acceleration

5. Get poor fuel economy

The Check Engine Light may illuminate setting a P0171 or P0174 code, indicating that the fuel system is running too lean due to the vacuum leak. 

Common Misdiagnoses

Vacuum leak symptoms can be caused by a defective mass air flow sensor, ignition misfires, a defective idle air control motor, or a stuck-open EGR valve.

This is a national average for all makes and models, but you can make it more accurate by adding your car info and ZIP.
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See full list of repairs »