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International Automotive Technicians Network
Re: 6.5 GM hard start
Posted to HD/Fleet Forum on 5/2/2011

Have you tested the elect fuel pump? Check both pressure and volume (6psi, 1pt/30 sec), sometimes you'll get good pressure but very little volume. If you're sure the inj pump and driver are good, then I'd be going over the timing procedures. Timing these can b... Login to read more.