Poor Idle/Stalling During Warm-Up

Dana Hess

New member
I am the owner of a '91 Syclone with approx. 57,000 miles. Vehicle resently developed a problem with idle/stalling until the truck is up to operating temp. When up to temp., it runs fine. Truck is stock w/ an ATR chip, 165 degree thermostat, K&N filter and underdrive pulleys. Any help would be greatly appreaciated. Thank-you. Dana. hessmd@msn.com
 
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