Four cylinder front wheel drive automatic 137,000 miles.
The car fluctuates the idle when just sitting at normal operating temperature. But when you hit the throttle the car wants to shut off. Seems as if it is getting choked of air or fuel. What are steps to fix this problem?
When I had the intake manifold off I noticed an extreme amount of carbon but was like oily black stuff all inside it. I attempted to clean it but probably did no good but actually close up one or more pathways through the throttle body and intake manifold. Correct me if I am wrong but is the black oily matter not all on the inside a bad EGR valve?
Also, ran a OBDII on the car and the TPS faulted out. Idle still very erratic and also when I push the throttle to the floor you can hear the intake suck air and then the engine shuts off. Sometimes letting white smoke exit the intake but you can also tell the engine wants to stay running.
I have my thoughts that I need to clean the intake manifold and components really well and give it a good clean but wanted second opinion.
Also, form the reply above is it okay to use the carburetor cleaner on a fuel injected vehicle?
have the same problem?
Sunday, October 26th, 2008 AT 4:52 PM