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1987-1991 Parley with regards to your 1987 to 1991 Bonneville, Olds 88 or Buick Le Sabre Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 01-11-2006, 04:40 PM   #11
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Well since the car was starting better during the winter which I really find odd, I hadn't gotten around to checking the fuel pressure untill today. The pressure reads at around 35 psi. Does anyone know what the normal pressure should be?


Thanks
Frank
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Old 01-11-2006, 04:55 PM   #12
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Frank...35 is about right. Does it fluctuate and steady itself quick, if you rap the throttle quickly
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Old 01-11-2006, 05:31 PM   #13
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Thanks for the reply BillBoost37. My son took it to his auto class since he wanted to get marks for doing an oil change, while there I asked if he could check the fuel pressure. The teacher later told me it was at 35 psi. and didn't give me anymore details. Since you believe it'* normal then I need to look elsewhere to solve my problem.

Thanks again

Frank
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Old 01-12-2006, 12:23 PM   #14
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Old 01-12-2006, 12:57 PM   #15
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Quote:
Originally Posted by SSEBONNE4EVA
Thanks for the post, but my problem is the exact opposite. It starts better when the outside temperature is colder, or then engine is warmed up. That'* what I can't figure out.
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Old 01-12-2006, 02:16 PM   #16
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'when you start the car... do you hop in and crank or hop in, turn the key on for the pump to pressurize and then crank?
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Old 01-12-2006, 06:05 PM   #17
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Quote:
Originally Posted by BillBoost37
'when you start the car... do you hop in and crank or hop in, turn the key on for the pump to pressurize and then crank?

I've tried these methods:
1.Try cranking.......will start after 20 seconds.
2.Ignition on and off 3 times before starting and no difference.
3.crank over for 5 second, then 5 seconds again, then 5 seconds again before starting

My first posts explains it more in detail.

Thanks for the suggestion guys and gals..
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Old 01-13-2006, 05:56 PM   #18
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Have you checked the TPS voltage at idle position? This will effect how the car starts.
Signal wire should be 4.2-4.6 volts, key on, engine off.
Guess I'm confused. Thought you said it starts right up when hot.
So that means the trouble is on cold starts?
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Old 01-14-2006, 08:57 PM   #19
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Just had another thought.
Crank sensors sometimes fail due to heat.
Our sensors are exposed. How old is it?
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