Jump to content

Hard to start '03 Silverado


Recommended Posts

My '03 Silverardo 5.3 is no longer a turn key start. It doesn't matter if it's hot or cold. I turn the key off and turn the key again and the truck starts instantly every time. Truck runs perfectly other than that. Has 345,000 kms and everything is original.

Link to comment
Share on other sites

Fuel filter

fuel pressure regulator

Fuel pump

 

Remove the vacuum line at the FPR. If fuel is present, replace the FPR

 

Take a pressure reading. Key on, engine off. Record pressure. Should be 55-62 psi. When pump stops operating, pressure should stabilize, then remain constant. If it drops more than about 5 psi in about a minute, you've got a bad check valve at the pump. Requires pump replacement.

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.



×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.