Struggles starting and dies when you let of gas

Asked by Nov 04, 2013 at 12:36 AM about the 2003 GMC Sierra 1500HD

Question type: Car Customization

Changed plugs and coil packs on my
03 1500 5.3 liter. Still sloles out.

1 Answer

105,385

Test fuel pressure and flow rate.

Your Answer

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