Question about 1995 Chevrolet Monte Carlo

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Problem with cold start up 1995 monte carlo v6 3.4

When i start the car in the morning the car idles really high then it idles really low and shuts off i turn it back on and it does the same thing it does this until the motor gets warm

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  • danicawillis Feb 10, 2009

    i have a 95 monte carlo that floods out after starting, or when she is climbing hills.she starts fine every time but when put in gear she stalls.also she idles fine sometimes but others times also revs high sometimes without touching the gas.

  • phantom357 Mar 09, 2009

    When its cold in the a.m. it starts, revs high, then comes back down just to stall out. Could this be plugs and wires??



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Two items to look at: Throttle position sensor, $45-50. PCV valve, $4-5. Either will, at times, produce problems with idling.

Posted on Nov 22, 2008


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It reves up real high when its cold after it warms up it has major power loss and backfires throught air tube

Sounds like a blown intake gasket. The expansion and contraction of metal from heat would cause the high idle cold and power loss when warm. Use Carb cleaner and spray along edges of intake to see if rpms change. Take your time. Sometimes, unplugging the idle air control will help you find the leak.

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95 monte carlo wont run right in the morning

I had the same problem on one of my GM vehicles with the 3.1L engine (which I assume yours has)

We could never find out what it was but replaced ALL the sensors, spark plugs, and spark plug wires and it got better, then eventually fixed itself.

If you have no check engine light on then its hard to pinpoint something like this.

Check MAF sensor first, then other air/fuel components.

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