Stalls at operating temp once coming to a stop

[Swilliams]

Any ideas what could cause 90 festiva to stall once it gets to operating temp. As long as I stay on the gas like highway driving it's fine but when I come to a stop it stalls

[ralph89891]

IAC perhaps. Have you cleaned it as of lately?

[ryanprins13]

Check your intake hoses and manifold for oil. Also check the accordion section of the intake hose for cracks. With excessive blow by you get oil in there. Mine was doing same as yours- I set my idle so it was fine. Then a couple months later i cleaned all the oil out and it idled way too high. Had to lower the idle. It was fine for 2 weeks, built up oil again and not it idles rough and dies when hot at stoplights.
Iac valve is common as well.


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