Need part # for a 99 IAC
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Senior Member
Joined: Jan 2002
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From: Orlando, FL
Need part # for a 99 IAC
I am going to buy a new IAC for my truck to see if it will solve my extreme low idle.... it's barely above 500rpm's. 
Been that way since I bought the truck with 22,000 miles, I now have 55,000.
When I reset the tsp and the tb idle screw the truck operates fine for about 10 minutes then the computer resets the idle back down to 500
I also notice when I start the truck it also idles correctly around the 750 to 800 range, but once I put the truck into drive the idle goes down the 500.
My truck runs fine, it just shakes at stoplight because the engine is running to slow. I can also hear my rotorpack in the blower like a mothereffer.
Any addtional insight would be appreciated
Been that way since I bought the truck with 22,000 miles, I now have 55,000.
When I reset the tsp and the tb idle screw the truck operates fine for about 10 minutes then the computer resets the idle back down to 500
I also notice when I start the truck it also idles correctly around the 750 to 800 range, but once I put the truck into drive the idle goes down the 500.
My truck runs fine, it just shakes at stoplight because the engine is running to slow. I can also hear my rotorpack in the blower like a mothereffer.
Any addtional insight would be appreciated