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i have a gmc van 1989 it idles fast put in plug wires tps and map sencer and it steel idles around 2000 rpm
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See more 1990 GMC G1500 QuestionsWhat are the best GMC repair shops?
RepairPal Certified shops can diagnose and repair your 1990 GMC G1500. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
Tuffy Tire & Auto Service Center - Grandview
1524 W 5th Ave
Columbus, OH
Closed
Opens 8:00 AM Mon
Excite Auto Repair & Towing
3430 Westerville Road
Columbus, OH
Closed
Opens 9:00 AM Mon
All In Auto Service
5200 Fisher Road
Columbus, OH
Closed
Opens 8:00 AM Mon
Tuffy Tire & Auto Service - Grove City
2131 Stringtown Rd
Grove City, OH
Closed
Opens 7:30 AM Mon
Blackstone Complete Auto Care
4800 Sinclair Road
Columbus, OH
Closed
Opens 9:00 AM Mon
Boyd's Tire & Service - Columbus
5263 Godown Rd
Columbus, OH
Closed
Opens 8:00 AM Mon
Tuffy Tire & Auto Service Center - Grandview
1524 W 5th Ave
Columbus, OH
Closed
Opens 8:00 AM Mon
Excite Auto Repair & Towing
3430 Westerville Road
Columbus, OH
Closed
Opens 9:00 AM Mon
All In Auto Service
5200 Fisher Road
Columbus, OH
Closed
Opens 8:00 AM Mon
all vacum hose are in good shap coud not find any intake leaks