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1988 GMC TRUCK
88 gmc 90 motor backfires and pops on hills when heavy accleration is applied. What wrong tried new plugs
have the same problem?
Wednesday, January 12th, 2011 AT 4:11 PM
Maybe weak ignition coil pull wire see if spark is blue/white if orange/yellow replace
Wednesday, January 12th, 2011 AT 8:56 PM
to post a reply.
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