Mechanics

EXHAUST AND STARTING PROBLEMS

1994 Chevrolet Suburban

1994 chevy suburban
5.7
236000
2wl drive
Just replace intake manifold gaskets

Problem I think the cam bearings are gone
Has a knock when first starting up stops after a minute of warming up, smells gas is burning rich, sputters and hesitant to go, while driving misfiring, smell exhaust fumes through out the truck.
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Faulknerc
August 13, 2007.



Backfires thru the intake usually mean worn cam lobes, the knock is probably a connecting rod or wrist pin. Time for a crate motor!

Merlin2021
Aug 14, 2007.