94 gmc pick up engine 5.0 when the engine warm change drive to rivers stall

Asked by Dec 30, 2014 at 10:47 PM about the 1994 GMC Sierra 1500 K1500 SL 4WD Extended Cab LB

Question type: Maintenance & Repair

94 g m c 1500 engine 5.0 when the engine warm been drove for about 25 30 minutes stop and try to rivers engine run rough or stall turn the steering engine stall any idea?

1 Answer

go.to autozone and tell.them you need a diagnostic port jumper tool. should be free. if u have a chiltons get it out. you.stick.the.two.prongs in the a and b ports of diagnostic port and turn on key. dont start. it should flash 1 and then 3 flashes (1e) that means its in diagnostic mode. if i remember right it may do that 3 times. then it starts flashing trouble codes. for example-2 flashes then 4 flashes is 24 and so on. the book will have the codes and parts those codes represent. or hit autozone and.let them scan it. also try unhooking neg. batt. cable for 15 min. to reset ecu. sounds like a vacuum leak though to me

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