rough idle

[10x2]

I went out 4xing in my explorer in alot of mud and now after i start the x the idle fluctuates back and forth from around 900rpm to 1500 and it just keeps doing this. It drives fine but it will not idle like it used to. The x is a 93 eddie bauer, automatic, The only modification to the engine is a k&n air filter. Does anyone know what could cause this. Thanks ahead of time.

 

[Billy177]

clean your maf iac and reset your computer

 

[10x2]

Would I just unhook the battery to reset the computer?
Thanks

 

[EBInterceptor]

Unhook the negative end and let it sit for 5 or so minutes and that should do the trick.

 

[10x2]

Ijjust unhooked the battery for about a 1/2 hjour and cleanded my air filter and maf sensor and it did not the help the idling problem with my x. If anyone has anyother ideas I would like to hear them.
Thanks

 

[Billy177]

did you clean teh idle air control valve?

also try some sea foam

 

[10x2]

No i did not clean the iac, should I just blow out the plug on it and what is sea foam?

 

[Billy177]

no actually take it off and clean the valve with carb cleaner and qtips

www.seafoamsales.com

 

[Mr XLT]

Also try the PCV valve. Some times the clutter up or the hose may have gotten disconnected. That give you a rough idle. Probably not the 900-1500rpm fluctuation though. Worth a try. Check all of your vaccum lines for leaks.

MR XLT