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  #1  
Old 10-21-2011, 05:21 AM
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Default Truck won't idle on cold mornings?

I have been trying to do a bit of research to save myself from taking my truck to the garage. I just wanted to try and get a few opinions before I take action.

I have a 2000 Ford Ranger, and in the last 2-3 years when the cold weather starts to roll in my truck will not idle period until it has warmed up. I put the key in, crank and it fires up the rpm's shoot up to nearly 1000 or so and then when it starts to drop to idle it immediately drops to 0 and engine dies.

It will not idle at all, I either have to put something on the fuel pedal to keep giving it fuel to warm up, or just throw it in drive and keep going until it actually warms up and then problem goes away.

The problem is all but gone when warm weather is around, but starts to rear its ugly head when the temp drops to the 30-40 degree mark.

I had seen it mentioned to try and clean the the IAC, and I have not tried that yet but I'm wondering if that would be the problem. I'm not very experienced with working on my own truck, but to cut some bills and save a trip to a mechanic I would like to try and troubleshoot this myself, and any help in how to actually go about locating and cleaning the IAC would be greatly appreciated, need be if that does sound like the problem I'm experiencing.


Thanks for your time!

-Bradley
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  #2  
Old 10-21-2011, 06:48 AM
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Default Re: Truck won't idle on cold mornings?

need some more info on your truck.... nut i would say that you need to either clean or replace the IAC.
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  #3  
Old 10-21-2011, 08:22 AM
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Default Re: Truck won't idle on cold mornings?

It's a 2000 Ford Ranger 4.0 4x4 XLT

Yea I think things are leaning towards the IAC.
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  #4  
Old 10-21-2011, 09:01 AM
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Join Date: Nov 2009
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Default Re: Truck won't idle on cold mornings?

Here you go: How To: Clean IAC (Idle Air Control)

Very easy.
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  #5  
Old 10-22-2011, 07:37 AM
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Default Re: Truck won't idle on cold mornings?

Thanks you so much I'll give it a try and post results =)
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  #6  
Old 10-22-2011, 07:45 AM
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Default Re: Truck won't idle on cold mornings?

Question: can you use MAF cleaner on the IAC?
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  #7  
Old 10-22-2011, 08:32 AM
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Default Re: Truck won't idle on cold mornings?

i dont think so.....
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  #8  
Old 10-28-2011, 10:25 PM
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Default Re: Truck won't idle on cold mornings?

There are a few good videos on youtube showing how to spray clean it also. Worth watching. And yes there are different spays so you got to watch out what you spray on what.
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  #9  
Old 11-04-2011, 02:10 PM
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Join Date: Mar 2011
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Default Re: Truck won't idle on cold mornings?

Mine has this problem too. I usually turn the key halfway and back a couple times (it activates the fuel pump) before starting it, and it seems to start up easier that way (for a temporary solution). I have a brand new fuel pump and fuel filter, and mine still doesn't like the cold. I'll have to check my IAC too.
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  #10  
Old 11-05-2011, 07:04 AM
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Default Re: Truck won't idle on cold mornings?

I tried the same thing with toggling the fuel pump, it doesn't seem to be helping mine. I have not the time to be able to troubleshoot it myself, so I'm dropping mine off to a mechanic I know very well and let him see whats wrong with it. I will post results
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  #11  
Old 11-11-2011, 09:42 AM
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Default Re: Truck won't idle on cold mornings?

It was in fact the Idle Air Control censor. Thanks everyone!!!

-Bradley
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