why is my truck hard to start.. hard to start when it does start it idle fine but when I give it gas it like it wants to or something then once it is warm it idle and drives fine code p0300 and p0420 have been read .. I need help please


Asked by Jun 18, 2014 at 09:25 AM about the 1996 GMC Sierra 1500 C1500 SL Standard Cab LB

Question type: Maintenance & Repair

3 Answers


I smell gas when trying to start all so


1st I would try & find & fix the gas smell problem. Gas vapors are very flammable. It may also be related as if fuel pressure drops due to a leak it can affect pressure & cause your problem when the engine is cold.


how do I find the gas smell problem??

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