I have a 94 S10 and it idles rough, it has 176,000 mi on it. What could be the most common problem ? I Had it tuned up but it didnt help much.
With that many miles it could be many things. The very first thing I would do before throwing parts at it is to do a compression test. The compression test will tell you the condition of the valves, rings, and overall health of the engine.
Jim
2004 SILVERADO 2500HD LS
Pro Comp Leveling Kit
285-75-16 Cooper ST All Terrains
Pro Comp Programmer
Bilstein Shocks
Linux Bed Liner
Tinted Windows
Other rides:
1967 Landcruiser <350 Chevy>
1970 Camaro
1990 Geo Metro Convertible
2007 FJ Cruiser
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