Question about 1995 Buick LeSabre

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3.8CI, V6 Engine will not start in cold weather.

I own a fuel injected 94 Buick LeSabre. When the temperature is above 45-50 degrees, the car starts and runs perfectly. However, when the temperature dips below 45ish, the car has difficulaty starting. It sounds like it is starving for fuel. I have replaced the Coolant Temperature Sensor and the Fuel Pressure Regulator and the problem still persists. The problem first occurred right after I replaced the fuel filter. I now believe the problem could be the result of a bad fuel pump. Any suggestions would be appreciated.

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  • honeymokey
    honeymokey May 11, 2010

    Check fuel pressure with a gauge when it gives a problem.

  • Mike Butler
    Mike Butler May 11, 2010

    Try cycling key just to on, 2 or 3 times before you try to start & see if that helps at all.(priming) Are you sure it was the correct fuel filter? Installed correctly?


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I'm having a similar problem. The mechanic replaced the fuel pump relay and car ran fine for a while. The problem has since reoccurred. What I've read is that this could be caused by loose wiring connections or a bad ECM (computer) which is a notorious problem for this engine. I first thought it was a fuel delivery problem as well but I'm thinking it is more of a wiring issue.

Posted on Mar 16, 2010

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