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Old 03-09-2010, 09:25 AM
srl srl is offline
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Join Date: Mar 2010
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Default 2004 Ranger 4.0L cold start hesitation

I've had a problem with my 04 ranger, 4.0L, AT, since I bought it new. I took it into two different dealers while it was under warranty, but neither was able to resolve the problem.
When I cold start my ranger, I will experience a hesitation when I'm driving between 35 and 45 mph. This happens every day, regardless of the outside temperature, unless the truck idles long enough before driving (while I'm scraping ice of the windows, etc.), or if the first 5 minutes or so of driving is at 30mph or slower. It continues for 30 seconds to 1 minute. There is never a problem starting the vehicle, it's never died, and it never idles rough.
After visits to two dealers with no success, I've just been living with this minor annoyance for over 6 years.
Now that I'm thinking of selling it, I'd like to take care of it and be able to hand over a clean, smooth running vehicle to whoever buys it.

Anybody else seen this? I did find a Ford TSB, 10008550, which talks about a cold start surge/hesitation problem, but couldn't find any other info to help determine a resolution.

Thanks to anybody who can point me in the right direction.
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