When engine is cold engine starts and runs just great. Only when engine is has been running and I leave it off for about 5 to 10 minutes does it have a hard time starting. After starting it runs a li

Asked by GuruSWSRN Jan 13, 2020 at 09:31 PM about the 2004 Chevrolet Suburban

Question type: Maintenance & Repair

2004 6.0l vortec: When engine is cold engine starts and runs just great. Only
when engine is
has been running and I leave it off for about 5 to 10 minutes does it have a
hard time
starting. After starting it runs a little rough but then it runs fine. When I shut it
off I can
smell unburned fuel/hydrocarbons.
fuel presure is 60psi even during hard start. fuel presure regulator is in the
tank on this model.

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