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2000 galant has no acceleration,can only drive by touching gas pedal

Not able to run with gas pedal more than a little way down,even in park,wide open throttle just dogs out,lopes,no rpm gain past 2500

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Check operation of throttle position sensor with a ohms meter through its range of movement. Resistance should rise or fall consistently through its range of movement.

Also check the condition of the following:

1) Spark plugs, leads and coils
2) Air filter
3) Fuel filter.

Posted on Nov 14, 2012

  • Tony Centore
    Tony Centore Nov 14, 2012

    ty,I tried changing tps,map,also,took off and cleaned egr and throttle body.The plugs are all sparking and white not burnt I took out o2 sensor and ran engine to check for exhaust being clogged.I changed ecm also.I have not checked fuel filter yet as it is in the tank.

  • Jamie Alton
    Jamie Alton Nov 14, 2012

    You might want to also check the MAF sensor (mass air flow)

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6ya6ya
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Posted on Jan 02, 2017

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mrgreenz
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SOURCE: 1998 Cavalier 2.4 L stumbles and misses at 2000-2500 RPM

Vacuume Leaks can cause this problems. you have to do a through check of vacuum hoses and the EGR valve. Your best bet can be to have your vehicle scanned at an autozone store and get a code. The EGR has to be closed at idle, then as the engine warms up or is accelerated, the EGR opens. That is if your car does not have an electronic EGR . The electronic EGRs do not use vacuum to operate. They are controlled by the PCM (power train control Module).

Posted on Nov 20, 2008

SOURCE: 98 Cavalier 2.4L engine stumbles at 2000-2500 rpm

Could be a short in the wiring for the O2 sensor.   I currently have the same issue only my car finally threw a code after two days of it acting up.  Code 106.  Changed the MAP sensor and it now throws 108, MAP sensor high voltage circuit.  Ah the joys of cold weather and broke down vehicles.  But I know that you wont always get a code with a short.  Let me know if you fixed the problem.

Posted on Jan 08, 2009

  • 1 Answer

SOURCE: engine or transmission knock / rattle upon

I had the same problem on my 2006 Lucerne and it was the engine mount located on the front of the vehicle behind the radiator.

Posted on Aug 24, 2009

  • 4088 Answers

SOURCE: my xj6 runs at high rpms and accelerates on its own

None of those possible problems have anything to do with idle speed. The first thing might be a very weak throttle return spring. The next would be a sticky throttle cable or foot feed pedal that isn't moving freely. Another possibility is a vacuum leak somewhere. Did changing the spark plug in #1 cylinder help the misfire? If not, you may have a partially plugged injector. Fixing the misfire will only increase idle speed some more. Look for an idle speed motor near the throttle body that is supposed to raise idle speed when the engine is cold and lower it back when the engine warms up. Check to see if it is holding the speed too high. If the throttle position sensor tells the computer where the idle speed motor is set, then it could have an effect on idle speed if the sensor is bad. The position sensor is just a fancy potentiometer. Hope some of this helps.

Posted on Aug 26, 2009

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SOURCE: 2000 accord v6 engine idle goes up and down after start up

I am having the same issue after I changed my battery today. Upon doing some research it seems like there is some way of aiding the computer with proper idling. I haven't done it yet... plan on going to the dealership where I got the battery, but from my understanding you disconnect the negative line from the battery for a few mins, reconnect, and then apply gas at 3000 rpm for a few mins until the fan kicks on. AND this will help reset your car to proper idling. Good luck

Posted on Aug 31, 2009

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