Car Questions
RepairPal is your advocate for car care advice and guidance

Trouble code P440. Just changed fuel pump assembly. Where is EVAP purge valve ?

(1997 GMC Sonoma)
in Salisbury, NC on January 09, 2012
I purchased a CarMD system and it says it is the purge control valve. Any other ideas ? I have also replaced the gas cap. I can drive the truck several days before the check engine lite comes on. Only seems to happen when the fuel level gets close to 1/4 tank.
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide. Learn more

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
Was doing a TBI cleaning. Gas came up n out so there was extra fuel to burn when starting. When starting it killed th...
Didn't find what you were looking for?