Matching You with a Pre-Screened Smog Check Center You will Love
Free Online Smog Check Diagnosis
$500 Free Consumer Repair Assistance
Failed Emissions Test
How to Pass the Test
Who Else Wants To Pass the Smog Check
Which Type Should I Choose?
    Forum > Failed Smog Test > Question

Join the community and post your questions. Ask-A-Tech right now!

Failed Smog Test

GMC Safari smog check failed due to fuel EVAP test.

I have a 1995 GMC Safari Passenger Van. The smog failed due to fuel evap test. What do I do?


Your GMC Safari may have failed the EVAP test because it was unable to hold the required amount of pressure during the EVAP test. In order to find the fault you will need to trace the EVAP tubes between your van's engine and gas tank, and check for breaks, cracks, and leaks in-between. You also need to ensure the EVAP solenoid is functioning properly and sealing the EVAP system while it is not activated by the Engine Control Unit (ECU).

posted by SmogTips Support

Related questions and answers you might find useful:

Why is my 2001 Ford Mustang OBD sensor status for the Evap, Catalyst, O2 Heater, and O2 Sensor still UnReady after multiple drive cycles? by Ricky

by Sales

by Sales

How Do I Get a Smog Check Waiver? by Margaret

Do I Need a Smog Check This Year? by Joy