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International Automotive Technicians Network
Re: 1989 C2500 Loss of Power on hard accel
Posted to Technical Discussion Forum on 5/20/2002

Hi Chad,

That vehicle being t-body relies heavily on the MAP signal for enrichment, check to see if the vaccume supply is good, sometimes the port can become closed off by sludge or part of the base gasket and cause the MAP signal not to drop fast enough and... Login to read more.