Question about 1990 Chevrolet S 10 4WD
Rotor cap plugs and wires egr valve coolant temp sensor and cleaned the idle air control valve please help me I take care of my 71 year old mom and its the only vehicle I have
Check fuel pressure and fuel delivery. MAP sensor also needs to be checked.
Posted on Nov 22, 2014
Testimonial: "it starts and runs just idles rough and stalls when you touch the gas ive changed the distributor cap rotor egr valve plugs plug wires temp sensor on thermostat housing and cleaned the idle air control valve"
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Posted on Jan 02, 2017
My problem was solved when I repaired my 4 wd activation dash switch. The switch was contacting on 2WD & 4HI at the same time. The front differential activation is vacuum activated possibly creating a tug of war that didn't actually engage it but drained off vacuum from the engine? A theory at best but stumbbled across it because I knew the switch wasn't working properly I repaired it and low and behold rough idle disappeared and all is good for 3 weeks running.
Posted on Dec 10, 2008
i would check fuel supply, volume adn pressure, i wold also look at the MAF sensor hot wire to see if it has a little chia pet growing on it.
Posted on Dec 13, 2008
Spray the intake with carb cleaner to find the vacuum leak. Check where the EGR mounts and the throttle body gasket sense you had both off.
Posted on May 10, 2009
I am having the same issue on Mitsubishi Galant 02. Clattering on acceleration, herky jerky idle. Pulled a code multiple cylinder misfire. My mechanic's diagnosis is bad valve cover gasket causing oil to seap into the spark plugs and bad timing belt, which I have not replaced at 150k miles. I do however know my fuel injectors do need cleaning, he hasn't ruled that out either. Have you pulled any code on it? I have read on engine knock sensor going out on some of these also. Hope this helps some.
Posted on Oct 22, 2010
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