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3.8 fast idleradarb8 07-29-2004, 05:55 AM The 3.8 in my 98 Camaro , if you start it when the engine is cold the RPM takes off to about 2200 and then slowly comes down to a idle of about 1200 till it warms up , then it starts and idles normal when it is still warm but if you let it cool off then the RPM takes off and slowly comes down again till it is warm Any one have any ideas ? Need4Camaro 07-29-2004, 01:20 PM Not quite sure, but your car may be doing that in response to avoid stalling when it's cold... Whens the last time you had a tuneup? Is it having a rough start then just kicks in? Check your idler to, and it's even possibal you're losing your battery too... nothingeined 07-29-2004, 02:16 PM Does it ever die on you when you first started?? That used to happen to mine and it was the fuel pump regulator. Changed that and no problems every since. radarb8 07-29-2004, 06:31 PM no it has never died on me but I was talking to a GM mechanic and he said it was a vacume leak that seals after it has warmed up a bit Radcat 07-30-2004, 11:36 AM no it has never died on me but I was talking to a GM mechanic and he said it was a vacume leak that seals after it has warmed up a bit That's what I was thinking. Mine did the same thing. Just get some new hose. It is really cheap. | ||