Fuel pump blazer fuel pumps 1998 chevrolet v6-4.3l fuel s...

Q: Fuel pump

asked by on March 01, 2017

My car stalls at a half a tank it spits and sputters toys that turns over later and you work but it won't start it's just a fuel pump or something else

My car has 150000 miles.
My car has an automatic transmission.

Make sure the fuel gauge is actually accurate. Maybe "half a tank" is "empty"? It is relatively easy to rule out the fuel pump by testing the pressure on the fuel rail but that will not tell you anything about whether the injectors are actually delivering fuel. However, if the truck "sometimes" runs smoothly, it is probably not the injectors but rather a fuel delivery (pump, pressure regulator) issue, an ignition fault, or an issue with malfunctions in the air induction system, such as the throttle position sensor, mass air flow sensor, idle air control and so forth. To get this diagnosed and resolved, the recommended service is an engine stalling diagnostic. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

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