Thread: Hard Start only when warm H2 2003
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Old 11-09-2013, 01:56 AM
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Default Re: Hard Start only when warm H2 2003
Wait wait wait. it is the fuel pressure regulator. Look up GM fuel pressure regulator repair on Ytube. They have novice tutorials. One video even explains the hard start when warm. Quite easy to repair. I have already ordered mine. Ulrich1, the hiss you hear could be the bad diaphragm in the regulator.
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