1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Stalling woes

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Old Nov 10, 2005 | 07:55 AM
  #21  
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Pull the battery cables at both ends, and reinstall using dielectric grease. Both ends meaning at the battery and firewall/starter etc. Anywhere those cables connect.

Almost starts to sound like the car is going crazy on you. Frequently that is caused by a low voltage or corroded cable situation.

It may not be the answer..it never hurts though. Also check the ECM connections.
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Old Nov 10, 2005 | 10:29 AM
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The original fuel strainer is half the length of a replacement on a 92, that'* the usual "stalling around turns" problem, typically to the right. I've heard about loose tank baffles causing problems at any time, but have not experienced it.

You can't have simultaneous high and low TPS voltage.

I'm gonna bet that resetting the PCM and cleaning the battery connections and some grounds will fix most of those codes. Dropping the tank and replacing the strainer, and maybe the pump and possibly the tank, depending on what you find when you drop it, will fix the stalling.
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Old Nov 10, 2005 | 12:40 PM
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Today I will hook up the fuel pressure gauge and drive the car to see what the fuel pressure looks like right before it stalls out.... hopefully this will give me some answers.
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Old Nov 10, 2005 | 01:03 PM
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Most fuel pressure gauges have about 18" hoses on them. I lengthed mine to about 7 feet. It'* the perfect length to bring out under the hood (by cowl) and into the window of the car.

Tested Mortehls car this way. Pressure was good at slow speeds. Once he got on it the pump weakness showed quickly. At 10psi I hollered..."Let up before we stall!!"
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Old Nov 10, 2005 | 02:49 PM
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Well I lengthened the fuel gauge like you did as well and drove it today... fuel pressure is not the the issue. It is about 36psi(vaccum line on) at idle and goes up to about 41-42 when gas is applied. You can tell when it dies cuz the pressure shoots up to about 45 and the chime says "ding, ding, ding"

I forgot to mention that the car runs perfect for about 15-20 minutes before it starts up with the stalling.

Think it could be the ECM?

Any new ideas guys?
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Old Nov 10, 2005 | 02:52 PM
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Hit the battery cables as suggested and I'll knock back another 20oz of soda for more brain power...and ideas
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Old Nov 10, 2005 | 02:55 PM
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Originally Posted by BillBoost37
Most fuel pressure gauges have about 18" hoses on them. I lengthed mine to about 7 feet. It'* the perfect length to bring out under the hood (by cowl) and into the window of the car.

Tested Mortehls car this way. Pressure was good at slow speeds. Once he got on it the pump weakness showed quickly. At 10psi I hollered..."Let up before we stall!!"
Wasn't it more like, "Wow, look at that, 10PSI! I didn't think it could get that low!" "Let up before we stall!"?

Wow. Good fuel pressure and it'* still happening? J WIkoff suggested looking at the fuel strainer in an earlier post.. but wouldn't a fuel strainer problem be reflected in fuel pressure issues, or no?
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Old Nov 10, 2005 | 03:01 PM
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As the problem occured if it was fuel, I'd expect to see pressure drop off quick.
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Old Nov 11, 2005 | 01:00 AM
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There was definately no dropoff in pressure.
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Old Nov 11, 2005 | 01:37 PM
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Well, now it stalls and makes the transmission act up. Is this the ECM dying?
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