Question about 2004 Jeep Wrangler
My jeep is starting to stall out @ every stop sign/light,was told it was my air filter,had it replaced anew,what else could it be ?
I've had this problem on vehicles with 70k or more miles on them. Symptoms include rough or uneven idle and dying. OBDII showes no codes.
Bad fuel, vacuum leak, low fuel pressure, carbon build up, inoperable fuel tank ventilation, poor grounding, low voltage, intermittent relay contacts are possibilities.
The simplest and mostly likely problem is:
Carbon build up inside the butterfly. With the engine off, pull the intake off. Use injector cleaner and a shop rag to clean the intake throat where the butterfly is. Use a plastic or wood handle to hold the butterfly open to get both sides cleaned. If this doesn't clear the problem, check for vacuum leaks, loose hoses etc.
Check fuel pressure and replace the fuel filter if it's low.
Posted on Sep 08, 2008
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