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D_E_Bishop's avatar
D_E_Bishop
Explorer
Aug 22, 2015

Need help with the In-Tank pump, FOUND SCHEMATIC OL

I have written about the starve out problems I've been having with the 1989 Chevy naturedly aspirated 454 in our rig. I had it to a shop to repair what needed repairing so I would pass smog here in C...
turbojimmy's avatar
turbojimmy
Explorer
Aug 22, 2015
1989 should be TBI. 9-13 PSI fuel pressure. But, again, need to check with the engine running. Pump will only run while cranking, and if there is oil pressure (that is with the engine running).

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