rough start silverado

any help for a 1999 silverado 4x4 2500. it starts fine first thing in the morning or if it has been running in the last 10 to 15 min but if it sits for 30 min to an hour it will hardly start runs rough for a few second. have installed a new fuel filter and ran some injector cleaner in the gas. fuel pressure was 58 psi according to mechanic.

Reply to
ERIC BULLION
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My 2000 Silverado, 5.3 l was doing that and Wayne Eidson Chevrolet in Sulphur, Ok. replaced the fuel pressure switch and solved the problem.

Reply to
Jape

Reply to
ERIC BULLION

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