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Re: 2001 GMC Jimmy Stalls
Also clean your IAC valve. Idle Air control Valve.
It get gunked up with carbon and has to be cleaned with TB cleaner.
Clean and scrub the valve and the port it inserts into with a toothbrush and lots of cleaner to dissolve the crap.
Reset your computer and then strt it up. It will run rough for about 30secs to a minute and then smooth out.
Then with your foot on the brake, put it into drive so the truck computer can relearn the idle in gear for two minutes.
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1995 Factory Blazer Service Manual for sale, PM if interested.
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