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1996 Chevrolet Cheyenne Repair Question


Topics covered: Engine, Gas, Intake manifold.
Mileage: 247,000 miles.

Asked on January 7, 2013

Chevrolet Cheyenne Engine Problem

I changed out intake manifold gaskets upper and lower
After putting it all back together it idled fine and accellerates fine but under steady load maintaining a steady speed it surges pretty bad. The trouble code I'm getting is 1345 engine po174 and po175. Stft b2s2 & b1s2 lean 99.2%
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Answer

Replied on January 7, 2013

you have a vacuum leak somewhere. go over your work and check all lines

Roy

Tiny Answered by ASEMaster6371 (expert)
24,972 answers provided