fuel pump problems

rls89 · Jun 14, 2010

89 4cyl 2.3, 1 new coil, new ignition mod. 8 plugs. fuel pump went bad, put new one in. still stalls out randomly, spits and sputters. took pump back out no garbage on screen or in tank. bad fuel mileage too. have to prime to start after sitting over night. no leaks any where.

Bryan22 · Jun 15, 2010

did you change the filter??

modelageek · Jun 15, 2010

rls89 said:
89 4cyl 2.3, 1 new coil, new ignition mod. 8 plugs. fuel pump went bad, put new one in. still stalls out randomly, spits and sputters. took pump back out no garbage on screen or in tank. bad fuel mileage too. have to prime to start after sitting over night. no leaks any where.

fuel pressure regulator

red85 · Jun 15, 2010

Pull the sending unit and check to see if the power wire for the pump has good contact with the pin. Over time the pin will start to melt the plastic around the power wire and shift down and compromise the contact with the pump's power wire. Also check the harness to the tank with a meter. Do a voltage drop test to see if you have any degraded wires.

Havok 4x4 · Jul 2, 2010

idk if it may help or not but i have an 88 with the 2.3 and mine had the problem of stalling randomly for no reason i swore it was the pumps but after i changed my sloppy looking pcv valve and egr iv never had the problem again

Duane867 · Jul 2, 2010

Any codes ?

fuel pump problems

rls89

10+ Year Member

Bryan22

15+ Year Member

modelageek

15+ Year Member

red85

15+ Year Member

Havok 4x4

15+ Year Member

Duane867

15+ Year Member

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