I have a 90 ford TEMPO with 170,000, manual, FWD.
The engine has rough idle. Idle speed varies a lot, from 500 rpm to 1,500 rpm. Sometimes, the engine is dead during idle (rpm is too low). I have to push the gas pedal to keep the engine alive. Whenever the engine idles, the rpm goes up and down, never stays constant.
I had this problem for a long time. It is getting worse recently.
Another problem could be related to it: during cold start, the idle speed goes lower and lower, at last the engine stops. I have to push the gas pedal several times to keep the engine running. When the engine is hot, this problem goes away.
Any idea is highly appreciated. Thank You.
Alex
The engine has rough idle. Idle speed varies a lot, from 500 rpm to 1,500 rpm. Sometimes, the engine is dead during idle (rpm is too low). I have to push the gas pedal to keep the engine alive. Whenever the engine idles, the rpm goes up and down, never stays constant.
I had this problem for a long time. It is getting worse recently.
Another problem could be related to it: during cold start, the idle speed goes lower and lower, at last the engine stops. I have to push the gas pedal several times to keep the engine running. When the engine is hot, this problem goes away.
Any idea is highly appreciated. Thank You.
Alex