what causes a 5.3 litre flex fuel engine hard to start in warm weather or after engine is warm from running?

5

Asked by Mar 13, 2012 at 04:41 PM about the 2008 Chevrolet Silverado 1500 LT2 Crew Cab 4WD

Question type: Maintenance & Repair

It takes 2 full ingition turn overs to start the engine.  Then runs fine.  In cold weather it starts right up.  I noticed the problem after I stopped using E 85 flex fuel and began regular fuel.  It has been on regular fuel for several months now.      

1 Answer

8,355

you may want to have your fuel pressure regulator checked- you shouldn't have to crank it over twice to start the truck with fuel injection.

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