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1989 Pontiac Firebird 1989 Pontiac Firebird Fuel Pump won't

Tiny
FIREBIRDFOREVER
  • MEMBER
  • 1989 PONTIAC FIREBIRD
1989 Pontiac Firebird 6 cyl Two Wheel Drive Automatic

I have a 1989 Pontiac Firebird 2.8 V6 Automatic Fuel injected car. My probelm is that the fuel pump won't engage at ignition. We know that the fuel pump does not need replacement because we have tested it using a bypass, it just won't start at ignition. We have checked the fuse and replaced the fuel pump relay. What's wrong?
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Friday, October 22nd, 2010 AT 1:19 PM

4 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
What you need to do is check the fuel pressure if its within specs-might be coming on but not producing pressure. Also check and test the fuel pump and oil pressure sending unit-
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Friday, October 22nd, 2010 AT 1:40 PM
Tiny
FIREBIRDFOREVER
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Where is the fuel pump and oil sending unit located at?
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Friday, October 22nd, 2010 AT 1:52 PM
Tiny
RASMATAZ
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Its on the oil filter adapter
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Friday, October 22nd, 2010 AT 3:20 PM
Tiny
FIREBIRDFOREVER
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Ok we have checked that. It was loose but plugged in. Now we're going to change the fuel filter. We think it's plugged and bringing down the fuel pressure.
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Friday, October 22nd, 2010 AT 4:54 PM

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