Originally Posted by brusk
Gummed up intake anything is not real common. If it's only an idle type of issue is what you what to do is unhook the idle air control valve and see if it stabilizes and at what RPM. If it's Idling too high or at slight throttle rev's up and down constantly look for intake or vacuum leaks which on an older car are pretty common. It would help to know more about the exact symptoms is the car driveable or is it only an idle problem. Does they car accelerate like crap, drive fine once at speed, any hiccups etc. Is the check engine light on? any codes?
Well the symptoms are low idling when put in drive or reverse. But fine when just sitting, and sputtering while driving. He took off the throttle body and cleaned it and put it back on, it seemed to work good then but all the sudden it got worse and now it seems like it has no power, sputtering, seems like it wants to backfire, and the idle seems better but not where it should be.
My grandfather is saying replace fuel filter and pump what do u think about this? also the check engline is flashing. no codes yet. gonna check here in a few mins and will post updates.