Erratic idling in 1999 Camry - Toyota Nation Forum : Toyota Car and Truck Forums

99camryLE · 12-03-2007, 08:30 PM

This problem started a few days ago. I have a 99 camry LE, 95K miles, 4 cyl, auto tranny. When I try to start it, the car would idle very very low, then sometimes the RPMS would drop down and it would stall out. If I give it gas for a few minutes to keep the RPMS up, the RPM needle will eventually jump up and it will run fine...no problems while driving or if I stop and start again. Afte rit starts, the car runs perfectly. This happens every morning and at night, after I get out of class. I think it might be the idle start valve that needs cleaning, but I'm not sure. Any ideas?

Qslim · 12-03-2007, 08:37 PM

You're on the right track. Start with cleaning out the idle air control motor and go from there.

99camryLE · 12-04-2007, 11:32 AM

Thanks Qslim. Is there anyhting else I should do besides clean the IAC valve?

merenjay · 12-04-2007, 08:18 PM

Clean the EGR valve. Sometimes they stick due to carbon build up.

Qslim · 12-04-2007, 08:43 PM

Quote:

Originally Posted by merenjay

Clean the EGR valve. Sometimes they stick due to carbon build up.

Sticking EGR valve generally present a problem during operation, not just at startup. A classic symptom of a bad valve is stalling when coming to a stop, as the EGR valve doesn't seat well after having opened during cruising.