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2005 Chevy Colorado, 5sp manual. 4wd. The truck surges when driving. Engine does not race per tachometer.
2005 Chevy Colorado. Approximately 140k miles. Four cylinder engine, 5 spd manual transmission, w/4x4 transfer case. Driving vehicle at hwy speeds of 30 to 60 mph and just today the vehicle will shudder, acts if if the transmission is slipping, the engine speed never changes per the tachometer, no codes are thrown.
Three months ago I was getting misfire on 1 cylinder. All four coil packs replaced. Throttle body, map sensor replaced. New plugs installed. Been running very well up until today.
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