Surging idol....
10-14-2009, 10:35 PM
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Surging idol....
So I recently bought a 1990 Toyota 4x4 ext cab. its got the 3.0L in it and some times when i start it up the idol will jump up and down... but when i drive it it stops... or sometimes while driving when i push in the clutch or put it in neutral it starts to do it again but not all the time.. does it sound like a vacuum leak or something to do with my fuel system
10-15-2009, 04:26 AM
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I have found there are a fe things that can cause the "surging" idle.
1) low coolant
2) vacuum leaks
3) tps out of adjustment
4) IAC valve gummed up/not working
5) afm out of spec
6) low compression
and so on.... start checking things out.
1) low coolant
2) vacuum leaks
3) tps out of adjustment
4) IAC valve gummed up/not working
5) afm out of spec
6) low compression
and so on.... start checking things out.
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