I have a 1995 Ford Escort 1.9L with about 157000 miles on the car and approx. 4000 miles on the motor. The motor and trans. Was rebuilt before I got it. My problem is, when it is started on a hot engine, after about 3 seconds the idle races up to about 3500 RPM and stays there for about five minutes before returning to normal. It then idles alittle low while in gear. The cooling fan also stays on high a few minutes after start-up (cold or hot). The idle does not do this on a cold start. The idle is ok afterwards as long as I don't kill it and restart. I have replaced the idle air control valve, engine temp. Switch, and mass air flow sensor. I am unable to get any codes from computor and the engine light does not come on. The circuits seem ok and no vacum leaks. The o2 sensor checked ok. Idle will return to normal when the mass air flow sensor is unplugged and go back up again when plugged back in, although not as high? Any more suggestions would be appreciated!
March 9, 2007.
March 9, 2007.
Check out the related content below while we wait for the question to be answered by a professional mechanic.
When i start my truck i hear and ticking noise and it does NOT go away after it warms up or it does not go away at all. When i accelerate the ticking noise gets faster and when im ...
4 answers • 2010 Chevrolet Suburban • 143,000 miles
I am replacing my engine in my 2003 Hyundai Tiburon. It is a 4 cylinder vehicle, but all the engines I am able to find are 6 cylinder engines. Is it possible to replace a the 4 cylinder...
1 answer • 2003 Hyundai Tiburon • 132,000 miles
If i took out my 91 toyota carolla engine what other cars would it be compatible with?
4 answers • 1991 Toyota Corolla
1990 Toyota Camry mileage: 150,000. 1. The oil warning light is on. 2. There are four quarts of oil in the car. 3. The oil filter is dry. 4. The engine sounds rough. 5. There is noise ...
3 answers • 1990 Toyota Camry • 150,000 miles