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1990 GMC 1500 Pickup Question: WHAT WOULD BE THE CAUSE? MY TRUCK IDLES FINE IN GEAR IT MISSES BACKFIRES W2DIE?

 

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E1ROOKIE, 5.7L V8, Rochester, WA, April 16, 2012, 18:46
 Rookie

I JUST CHANGED FROM THE 700R4 BACK TO THE TH400
. ALL GEARS WORK GREAT. IVE CHANGED FUEL FILTER N SPARK PLUGS. ALSO PUT IN A FABBED KICKDOWN BUTTON. DONT KNOW WHERE I SHOULD HOOK UP THE WIRE TO SEND SIGNAL TO TRANNY TO KICKDOWN?

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  • Answer #1

    Greg's Orange Auto (13671 Answers) , Orange, CA - (714) 361-9386
    globalhelper April 17, 2012, 06:58
     Master

    did this problem happen after the trans replacement?

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    Visitor, April 17, 2012, 08:26
     Rookie

    Yes it did

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    globalhelper, April 17, 2012, 09:01
     Master

    CK YOUR TIMING, FUEL PRESSURE AND PLUG WIRES TO START

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    E1ROOKIE, April 17, 2012, 09:19
     Rookie

    Sorry I've been trunk to change me answer. No it had the problem. On drive him after I paid for it. It showed them signs. Top radiator hose collapsed. I've done my fuel fillter,spark plugs. I'm about to do my tos??

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