454 engine when it gets warm starts to act like it running out of gas hard to start then cuts out and wont start. If you let it sit for a couple hrs and cool down starts and runs fine. any suggestions

Asked by signguy11 Dec 10, 2015 at 06:13 PM about the Chevrolet Silverado 3500HD

Question type: Maintenance & Repair

gets warm and starts coughing like its running out of gas then cuts out wont
start. Let it cool off for couple hours than runs fine??? Fuel pressure is good
brand new plugs,  wires. Any suggestions?

2 Answers

180,095

What year is this and is it carbureted or fuel injection?

3 people found this helpful.
25

Yes more info please! but the vehicle sounds carburated and the fuel is getting hot. Have you changed anything recently?

2 people found this helpful.

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