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91 FIrebird Formula 350 Oil Pressure Fluctuation

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Old Sep 30, 2011 | 04:17 PM
  #1  
Shinobi'sZ's Avatar
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91 FIrebird Formula 350 Oil Pressure Fluctuation

I have a strange issue. Sometimes when I start the car it starts but the oil pressure is very low and it doesn't want to run. Then I turn the car off and the oil pressure is fine and the car runs fine.

Is this a sign of the oil pressure sending unit going bad? If so is it located on the driver's side at the rear of the intake next to the dizzy? I am assuming the switch down by the oil filter/cooler is the temp sensor and doesn't really have anything to do with this.

Thanks
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Old Sep 30, 2011 | 04:34 PM
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From: Spring Hill, Fl.
Car: 87 iroc-z
Engine: 454
Transmission: th350
Axle/Gears: 3.73
Re: 91 FIrebird Formula 350 Oil Pressure Fluctuation

next to the dizzy. i think it has 3 wires on it.
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Old Sep 30, 2011 | 04:49 PM
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From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: 91 FIrebird Formula 350 Oil Pressure Fluctuation

On firebirds its down on the DR side of the block above oil filter area. 3 wires.
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Old Sep 30, 2011 | 04:53 PM
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Re: 91 FIrebird Formula 350 Oil Pressure Fluctuation

Originally Posted by TTOP350
On firebirds its down on the DR side of the block above oil filter area. 3 wires.
OK my car has a oil cooler, is it right above the oil filter location? We are talking about the oil pressure sender and not the temp guage right?

Thanks
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Old Sep 30, 2011 | 04:54 PM
  #5  
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From: Spring Hill, Fl.
Car: 87 iroc-z
Engine: 454
Transmission: th350
Axle/Gears: 3.73
Re: 91 FIrebird Formula 350 Oil Pressure Fluctuation

i stand corrected.
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Old Sep 30, 2011 | 05:02 PM
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From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: 91 FIrebird Formula 350 Oil Pressure Fluctuation

Originally Posted by Shinobi'sZ
OK my car has a oil cooler, is it right above the oil filter location? We are talking about the oil pressure sender and not the temp guage right?

Thanks
Yup.
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Old Sep 30, 2011 | 11:39 PM
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Re: 91 FIrebird Formula 350 Oil Pressure Fluctuation

Thanks guys!
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