Question about 1995 Buick Roadmaster

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I have a Buick roadmaster 1994 but de motor rpm is

I have a Buick roadmaster 1994 but the engines rpm is to low when the engineis hot. When I put it in drive the engine tends to stall. How can I put the motor rpm to a higher level?

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Carbureter or fuel injection on that model ?

Posted on Mar 02, 2009

  • Roberta Smith
    Roberta Smith Mar 23, 2009

    you can adjust the idle as it is controlled by the computer. the problem is likely located in the throttle position sensor

  • Roberta Smith
    Roberta Smith Mar 23, 2009

    that should read can't adjust the idle

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The RPM is related to the power drain on the motor. When you have the Transmission engaged it takes some of the power. When it is in park, it does not drain any power. That allows the RPM to increase. the computers in some cars are programmed to increase the engine speed when certain accessories are turned on, i.e. when the air conditioner clutch engages. This ensures that the engine does not stall with the added load, and that the engine maintains a high enough speed to keep the alternator generating adequate current to maintain voltage.

Posted on Mar 23, 2009

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Did you try scanning the ECU module to read error codes, troubles of different kind can give this same problem.

Posted on Mar 02, 2009

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