Question about 2000 Ford Expedition

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Where is the idle control valve on a 2000 ford expedition with 4.6L engine? how to clean it? Thanks.

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  • Master
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Dont bother cleaning it, replace it. Its on top of the throttle body. 2 bolts , 8mm

Posted on Nov 12, 2010

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mindreader
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SOURCE: my 2000 ford expedition idles rough when the

so, when the engine is burning a rich mixture, it runs rough. Please take it to an Autozone and ask that they read the ODB messages.

It could be that your idle mixture is too lean. So a fuel system cleaner may be the fix... or a carb cleaner...

Something to get the system to give the engine more fuel on a cool morning.... that will make it better!!-Jim

Posted on Oct 23, 2009

Testimonial: "thanks alot i will try that"

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Jan 02, 2010 | 2000 Ford Expedition

1 Answer

My 2000 ford expedition idles rough when the outside temp is 65 degrees or colder in the summer there is no problem i have already replaced the idle control valve did not help


so, when the engine is burning a rich mixture, it runs rough. Please take it to an Autozone and ask that they read the ODB messages.

It could be that your idle mixture is too lean. So a fuel system cleaner may be the fix... or a carb cleaner...

Something to get the system to give the engine more fuel on a cool morning.... that will make it better!!-Jim

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Actually in most cases this would tell me a a dirty/defective IAC  Idle Air Control valve , these have dropped in price to about 55 buck either that the EGR valve is sticking 

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1 Answer

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Check the air idle control valve, it may not be working or dirty with carbon build up. Check the wire harness to the valve and try cleaning it with throttle body cleaner, do not use carb cleaner. You might get away with just spraying a Can of throttle body cleaner through the throttle body, follow the instruction on the can and use the whole can. After your done, turn the engine off and place the ignition key to the run position for 30 seconds then turn it to the off position for 10 seconds. Start the car and let idle for 1 min before going for a test drive, that will reset the base line for the air idle control valve. Good luck and hope this helps, If the problem still there then the air idle control valve needs to be replaced.

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dirty or clogged lifters,either use an engine detergent or 1 quart of diesel fuel in the oil,idle only for about 20 minutes,then change the oil and filter and see how it is now.

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