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Fuel pump problems?

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Old 07-09-2018, 12:19 AM
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Car: 88 Pontiac firebird
Engine: 305
Transmission: 5 speed
Axle/Gears: 3.27
Fuel pump problems?

My vehicle keeps randomly dying and has troubles turning on. I automatically thought fuel pump. So I replaced fuel pump and filter along with the sending unit. It still had the same problem so I replaced the fuel pressure regulator and still the same thing. I figured maybe the fuel pump was a faulty one so I replaced it again and still same problem.
Old 07-09-2018, 12:34 AM
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Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Fuel pump problems?

First thoughts would be icm or injectors. You might want to ohm the injectors. Does it fire right back up a intermittent issue or does it struggle to fire back up ?
Old 07-09-2018, 01:15 AM
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Car: 88 Pontiac firebird
Engine: 305
Transmission: 5 speed
Axle/Gears: 3.27
Re: Fuel pump problems?

Okay. And sometimes it will start right up sometimes it wont.
Old 07-09-2018, 10:11 AM
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Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Fuel pump problems?

Not sure if you have tpi or tbi, but you should check for spark and injector pulse or spray if it’s tbi when it occurs. A intermittent issue can be a bear to find.
Old 07-11-2018, 07:56 PM
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Car: 88 Pontiac firebird
Engine: 305
Transmission: 5 speed
Axle/Gears: 3.27
Re: Fuel pump problems?

I replaced the Icm so far it's doing good still lack of power but I'm facing the hard truth that the engine is getting a little blow by action. I'm probably just going to run thick oil Haha. But thanks, I didnt of ignition because it didnt feel like it but I guess it was.
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