When accelerating as soon as i hit 2500 rpm all the way to just under 3500 rpm i'm gettign a faint rattling (or air sucking nose if that makes sence), almost like its coming from inside the dash. Ive heard talk of timing chain problems and im a little concerned that this is what im hearing, my 04 4.0 has just over 100k on it. Anybody out there with any advise on what this could be, or some suggestions on what i can check to pinpoint what this noise can be, its not very loud, but i know its there and listen for it and its starting to pi$$ me off!! p.s. my superchips flashpaq is not picking up any codes!
thanks!!

 

i would bet its the timing chain rattle youre hearing. mine has done it since ive owned it with 10,000 miles on it. i recently switched to 0w-30 weight oil and it settled down my rattle significantly

 

have u looked into getting it fixed? i heard that of ppl fixing it but that it will eventually come back.. there hast to be some way to fix this problem!

 

i havent looked into getting it fixed because the motor has to come out to do it. i dont feel like doing that yet and im sure not going to pay the stealership to do it. as far as i know they have updated parts that fix the problem. ive got 77,000 miles on my truck with no problems what so ever, its just annoying. follow this link to a thread on another forum that has alot of info on this problem: http://www.rangerpowersports.com/for...d.php?t=125526

 

mine has been doing that also ever since i bought it new in 2001 and under factory waranty they sposedly fixed 2 or 3 times and i still does so i just gave up on and I have over 80k miles with no problems

 

I thought Ford fixed that by 03/04?

 

i thought the same thing.

 

Thats what i heard as well! which is why i am questioning if this is what i am hearing! but it does have so many of the characteristics of this problem! anybody else with a later model SOHC having this problem?

 

Fixed in 03 my @$$. I pretty much use the rattle as a shift point in my truck. My truck has been doing it since like 50K miles and it still does it today with 122K miles on it. I figure if I have to take the engine out to fix it I might as well put in a reman engine.

 

It has happened in 04+ truck with miles on them. Parts do wear out. They changed the design of the tensioner and the guides I believe.....they last longer than the early 4.0L SOHC's did.

My trucks done it since 40k. I'm now at 103k and it's gets worse in the cold weather...but gets very quiet in the summer time. I'm looking at letting it just blow and take the engine out with it. I want a 20k 2004+ long block.

Codes wont show for mechanical failure.

 

Thanks allot for the input everybody. I guess the short term fix is the volume ****, long term fix is a v8 swap.. haha

 

i have 2k tell my warranty expires maybe i should take it in lol

 

hmm mine sounds like an old sowing machine to but i have the ohv wierd

 

a couple fixes

A) sell ranger but who wants that
B) turn stereo up
C) drown it out with a aftermarket exhaust

 

I should have my new Gibson Dual system on Tuesday, so that should drown it out a bit!