95 Jimmy 4.3 Engine shuts off

Petro_58

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1995 Jimmy 4.3 W vin. My son was driving the Jimmy and the engine just shut off. Couldn't get it to re-start. so I towed it to the house. Checked fuel pressure, 55psi with key on engine off. 55psi when engine runs for short times. 45 psi Oil pressure. It seems that even though I have fuel pressure, and spark the engine will not run unless I spray starting fluid in or mist it with gas. It's like something is shutting off the fuel from getting through to the Injectors? Now that being said, periodically if I leave the battery disconnected I can restart the engine and it will Run until it starts to warm up then it shuts down around 120F temp.
I have replaced the TPS, Coolant Temp Sensor, MAP sensor, IAT sensor, Idle Air control, Distributor Module, Cap, Rotor. Ok Guys or Gals any Help is greatly appreciated, this one is kicking this old guys Butt.

Thanks
 
1995 Jimmy 4.3 W vin. My son was driving the Jimmy and the engine just shut off. Couldn't get it to re-start. so I towed it to the house. Checked fuel pressure, 55psi with key on engine off. 55psi when engine runs for short times. 45 psi Oil pressure. It seems that even though I have fuel pressure, and spark the engine will not run unless I spray starting fluid in or mist it with gas. It's like something is shutting off the fuel from getting through to the Injectors? Now that being said, periodically if I leave the battery disconnected I can restart the engine and it will Run until it starts to warm up then it shuts down around 120F temp.
I have replaced the TPS, Coolant Temp Sensor, MAP sensor, IAT sensor, Idle Air control, Distributor Module, Cap, Rotor. Ok Guys or Gals any Help is greatly appreciated, this one is kicking this old guys Butt.

Thanks

Start with the simple and replace the fuel pump and inspect the ground wire to the fuel sending unit wire harness. As the fuel pump heats up, you maybe loosing fuel pressure or its just a simple fix from a dirty fuel filter.

keep us posted and hope we can help you get the jimmy running 110% again soon.

Molson02536;)
 


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