93 GMC Sierra

10

Asked by May 23, 2017 at 12:55 AM about the 1993 GMC Sierra 2500 2 Dr C2500 Standard Cab LB

Question type: Maintenance & Repair

350 engine with 5.7 liter tbi. Truck will not run without two
foot method and when does run with two foot method it is
very rough. I have replaced complete throttle body, ecm,
mad sensor. Truck was sitting a few years before I got
ahold of it if that helps. Any help is greatly appreciated as
I cannot afford to keep playing the guessing game. Thank
you all in advance

2 Answers

26,525

you need to check for codes...did you...also is it a lean pronlem due to vacuum leaks?we dont know..

10

Vacuum is the only thing I didn't do yet. I get paid on Friday so I am replacing every single line, will update post then thank you

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