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Idle rises / surges when warming up
I searched but couldn't find anything that sounded like what I have.
I don't drive the truck too often, maybe once or twice a week. Two times ago, i started it up and was letting it idle while I loaded stuff up. It started up and idled normally at about 700 rpm, but after about 2 or 3 minutes, the rpm rose to just under 1000 and stayed there. it's never done that before. i blipped the throttle and it went down. it stayed there for another minute or so and then went back up. i blipped, it dropped and i took off shortly after and there was no recurrence. the next time i drove it there was no issue, but i don't remember how long i let it idle. last time, same thing happened as the first. it hasn't been that cold. maybe a little colder than normal (50ish), but the first time it happened it was normal. truck is an 05, bone stock. i have a standard code reader from autozoo, and haven't pulled codes yet, but not sure if it will reveal anything. UPDATE: well, yesterday afternoon it was about 65ish, and i started it up like normal, but after about 30 secs, it creeped up just a little to maybe 800 and the blipping dropped it down. i read about a cold idle, but this doesn't sound like it. the only other thing i've read that involves anything similar is the icp. thoughts????? thanks! Jeremy in socal. Last edited by jfryjfry; 12-29-2009 at 07:20 AM. |
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