L98 - HOT: Engine starts, but quickly dies. Then restarts fine.
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L98 - HOT: Engine starts, but quickly dies. Then restarts fine.
I've been having this problem for a while now -
1)Cold, the motor starts right up.
2)If I ever turn the motor off after its warmed up, and go to start it again - it will crank, and the engine WILL start, however... within 1 second the engine will surge, and die without putting up much of a fight.
3)Restarting the motor usually requires i crank it for twice as long as usual, even pumping the gas pedal a bit.... and eventually it will ssslllowwwwllyyy start back up and run fine.
Ignition module? Ignition coil? Injectors? Dirty fuel system? Time for an LSX swap?
1)Cold, the motor starts right up.
2)If I ever turn the motor off after its warmed up, and go to start it again - it will crank, and the engine WILL start, however... within 1 second the engine will surge, and die without putting up much of a fight.
3)Restarting the motor usually requires i crank it for twice as long as usual, even pumping the gas pedal a bit.... and eventually it will ssslllowwwwllyyy start back up and run fine.
Ignition module? Ignition coil? Injectors? Dirty fuel system? Time for an LSX swap?
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Car: 88GTA
Engine: 5.7TPI
Transmission: Auto
Axle/Gears: 3.27
Re: L98 - HOT: Engine starts, but quickly dies. Then restarts fine.
I would first do a pressure test of the injectors after warmup for leakdown.
After the engine is warmed up and ran for a while, then turned off, if injectors leak down, that puts fuel into the cylinders. Upon starting the engine shortly after shutdown, it exhibits the same as a flooded issue. And as mentioned above, if you happened to "pump the gas", or hold the pedal to the floor, this cuts off fuel delivery, and the engine starts...with the sputtering as mentioned and along with the smoking exhaust.
After the engine is warmed up and ran for a while, then turned off, if injectors leak down, that puts fuel into the cylinders. Upon starting the engine shortly after shutdown, it exhibits the same as a flooded issue. And as mentioned above, if you happened to "pump the gas", or hold the pedal to the floor, this cuts off fuel delivery, and the engine starts...with the sputtering as mentioned and along with the smoking exhaust.
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Car: 1989 Pontiac Formula 350
Engine: L98
Transmission: 700R4
Axle/Gears: BorgWarner 3.27 Posi
Re: L98 - HOT: Engine starts, but quickly dies. Then restarts fine.
ICM first, and injectors second, are the usual hot start suspects.
Sounds like fuel though (injectors)
Sounds like fuel though (injectors)
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