Question about 2000 Buick Century

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My 2000 Buick Century will not crank or stay runing unless i have and keep my foot on the accelerator long as i have my foot on the accelerator it will continue running, i have tried a new fuel filter and that was not the problem.

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When you say "not crank," I am assuming will not start. This COULD be a problem with your idle air control valve. Is the check engine light on? If yes, check those first. Otherwise try cleaning the IAC. It might be clogged. You can get a repair manual from any parts store to find out its location and any other info you might need. It will help you with other necessary repairs as well. In many vehicles, the IAC is usually connected to the throttle body. Good luck.

BTW, the IAC controls the idle RPMs when throttle (accelerator pedal) is not applied.

Posted on Jan 01, 2011

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Posted on Jan 02, 2017

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When I take my foot off of the gas pedal my car doesn't slow Down Its staying at 25 mph with my foot off of gas ..2000 Buick century 3.1


The idle of your Buick might be too high and that is why your car is staying at 25 mph. You should probably replace your "Idle Control Valve". This part will range from $ 25.00 to $ 75.00 and will take 30 minutes to 1 hour to replace.

If you need further help, reach me via phone at https://www.6ya.com/expert/lloyd_4256582adacd68ee

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you have changed the immobilizer program with the new switch
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Click the link mentioned below:---

How to test Crankshaft Position CKP Sensor?

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These will help.

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If it runs rough all the time, could be a bad coil pack/wires. If just starting and hesitates on acceleration, I would suspect the throttle position sensor.

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Jeep 2002 grand cherokee dies unless i keep foot on the gas...


The idle relearn needs reset. Keep your foot on the gas at about 900 rpm. Make it idle for about 5-6 minutes. Slowly ease up on the gas until it will idle on it's own, it might take a while. After you get it to idle, it might be idling real low, but on its own, Let it sit and idle until for 20 minutes. After that it should be back to normal. You will have to do this every time you have the battery unhooked for a while.

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Check your coolant level. Not enough fluid in the radiator to circulate when the engine is operating normally.

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My car will start but won't stay on.


Check you fuel pressure to see if its putting out enough fuel to keep the engine running. Otherwise it could be a dirty fuel filter or a bad fuel injector

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How to replace a coolant level sensor, 2000 buick century


The coolant level sensor is located on the radiator. If you are looking at the engine from the front of the car it will be on the left side. There will some kind of clip holding it in the radiator. Removed the clip and pull the sensor out. You will lose coolant so try to swap it out quick or drain some of the coolant out. Once new sensor is installed, install clip to keep the sensor in place and reconnect the wires to the sensor. Crank the engine and make sure the coolant level is full. This should correct your problem.

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