1988 Gmc Sierra 1 Ton Truck Only Starts Feels Yet Will Tart Pulled Been Shop

1988 GMC SIERRA

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my 1988 gmc 1 ton truck only starts when it feels like it? yet it will tart if it is pulled?? its been in the shop and the ignition & wire were changed! all the other motor stuff has been changed?? im a mechanic and i just cant figure it out??!!

Apr 4, 2013 at 4:14 PM

CJ MEDEVAC

✓Experienced Mechanic
11,000 POSTS

SORTA EXPLAIN IN FULL, EXACTLY WHAT HAPPENS WHEN YOU TURN THE KEY TO "START".......UNTIL YOU RELEASE IT

"START" IS SOMETIMES THOUGHT OF IN 2 WAYS

1) THE "TURNING OVER" ASPECT (CRANKING)

2) THE "BUSTING OFF" AND "RUNNING" ASPECT (RUN)

SPECIFICS ABOUT YOUR TRUCK'S NOMENCLATURE AND FEATURES........AND ENGINE SIZE INFO, REALLY HELPS US INVESTIGATE YOUR SOLUTION WAITING TO HAPPEN!

THE MEDIC

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