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post #1 of 2 (permalink) Old 04-06-05, 09:47 PM Thread Starter
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I need help desperately!!!

First off, I want to say Hi to everybody, and that this seems like a very informative site. I searched for a possible place to solve my problem, and I'm hoping this site is it...

I bought a 2004 XLT Ranger in the fall of 2003. It's an extended cab, 4.0, 5 speed. I loved this truck, and was very impressed with the power, as before that, I'd only had the smaller V-6 Ford motors.

At just about exactly 1500 miles, the valves started chattering when it was in "any" kind of pull(even a very slight grade at 70mph on the inter-state). I'm talking about the chattering like the older vehichles would do if you had them timed a little too high, and tried to run 87 octane gas in them. I tried to ignore it for a few days, but it was painfully obvious that something was wrong with it. I contacted Shelor Motors (SW Virginia) where I bought it, and they ended up putting 680 miles on my truck, and keeping it for nearly 30 days split between 7 seperate occasions that winter. Two of their mechanics rode with me in it, and both said there was definately a problem. In the end, the manager told me there was nothing wrong with it, that it was my driving!

I took it to another dealership, and they retarded the timing, which helped slightly, but really hurt the power. I was fed up, so since then, I've just tried to live with it.

It chatters a lot worse on days when the the temperature is hotter, say 70-90 degrees outside. I've tried higher octane gas, but it still doesn't help. It also never chatters if the motor is in a hard pull. I'm thinking maybe I just got a bad computer or something? I've heard that there was a recall on the newer Fords about the cruise controll? Thinking back, mine started acting up imediately after the first time I used the cruise.

I'm at a loss! My warrentee is expired, and I depend on this truck for my work. I won't be able to afford a new one for at least a couple more years. I'm hoping that maybe one of you fellows might have some idea? I'd buy a new computer if I thought it would possibly fix it.

Thank you...

I can romp on the gas several quick times, and it straightens up, and quits chattering for a little ways, but then gradually starts doing it again(my reason for thinking it's computer related).

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post #2 of 2 (permalink) Old 04-07-05, 08:53 AM
Two SC 61's = trouble
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Location: Penrith,nswAus/Morrinville.NZ
Age: 63
Posts: 6,360
Re: I need help desperately!!!

Colder plugs, check that maf is clean???
If its detonating? Its real bad on your engine...
It could also be running very lean to cause these issues as well...
So fuel pump and filter should be checked...
Check inlet for leaks and run code check through your computer...
Use good fuel untill you get it sorted...

Don't be afraid to try something new. Remember, amateurs built the Ark...Professionals built the Titanic!
Tuned & maintained by "Peppertree Perfmormance". Dart block, Scat 4340 steel crank, Custom C.P pistons.Oliver rods.. Mal Wood twin plate clutch.. Twin SC61/2's,482 rwkw/ 645 rwhp..
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