Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
Hey guys just a real quick question I have a 2001 jeep wrangler 4.0,and wanting to know if the evap solenoid should be open or closed with key on engine off,the car iam working on solenoid valve is open with key off and key on and runs quite rough.
Generally speaking, the purge valve is, normally, closed. The vent valve is, normally, open.
"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer." I have learned more by being wrong, than I have by being right.