Have replaced fuel pump, oxygen sensor, crank sensor
Your best bet ,rather then just replacing parts , take to someone who knows how to diagnose using scan data .
002 Fuel System Tests Start Here
SOURCE: 2003 Chevy Blazer won't start
have the computer checked out. may need reprogramming and have updates added. also check for loose or corroded connections at the terminals.
SOURCE: 2000 chevy runs rough
fuel pressure regulator might b leaking .. pull vacuum line off of it and see if there is fuel.... if soo replace it
SOURCE: 1994 pontiac bonneville fires up but stalls imediatly
WOW a 94 with 46K on it thats rare. Your computer may be bad it sends the pulse to the injector.
SOURCE: Chevy Blazer won't start; fuel pump needs replacing
Before spending several hundres on a fuel pump, I recommend doing a fuel pressure test. You can get a test gauge pretty cheap at a parts store. If the pump is junk, you raise the truck, lower the fuel tank, unplug the electronics from the pump at the top of the tank, then with a hammer and flat head scrwedrive, gently tap the lock ring in a counter clockwise direction until it pops off. Pull the pump assembly out and install the new one. Reverse directions to install.
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