My 99 suburban won't start fuel pump issues can I put an inline fuel pump instead of dropping the tank and if so which line coming out of the throttle body is the sending line ?

Asked by Nov 24, 2015 at 11:15 PM about the 1999 Chevrolet Suburban K1500 LT 4WD

Question type: Maintenance & Repair

1 Answer

78,535

No, it won't be able to draw enough to make the engine run, there are internal check valves in the stock pump that will inhibit flow. You would have to modify the fuel system use an external fuel pump, and a pump that can make that kind of pressure will be expensive.

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