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4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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  #1  
Old 04-24-2009
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4.0 sohc rattle noise?

ok, i have a 2001 ranger xlt 4x4 offroad. has 4.0 sohc and is automatic. when reving in rpm range from like 2200-around 3000 theres a rattling sound. but when im at a speed that stays in that rpm range (like 70mph) it doesnt do it. can neone tell me what this is? my dad says its just "valve float" and that its common in alot of vehicles over 100k (mine has like 112k). and that if it gets worse to just get a valve job and it would be alright. i read on here somewhere that it was the timing chain? ne help would be appreciated.
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Old 04-24-2009
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My gas pedle Vibrates when its on cruise at like 60mph when its going up hills and stuff. I cant figgure it out its so annyoing
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Old 04-24-2009
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lol. im just affraid one day imma be drivin down the road and a freakin valve or something is gonna shoot through the damn hood. lol
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Old 04-24-2009
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My guess is the infamous timing chain
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Old 04-24-2009
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My guess is the infamous timing chain
X2
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Old 04-24-2009
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What can you do about the timing chain??

In my case I have 91 k in the truck but only 16 since the engine was rebuilt from the oil pump dieng from sand during asembly
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Old 04-24-2009
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If it is under warranty, you might be able to pressure Ford into doing it, but beyond that, absolutely nothing
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Old 04-24-2009
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your warranty should cover it mine did and if not your looking at 1,100 bucks before tax.
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Old 04-26-2009
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If it is under warranty, you might be able to pressure Ford into doing it, but beyond that, absolutely nothing
Warrentys up last time I needed something. when they rebuild and engine does the warenty on it start over again?
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Old 05-02-2009
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how is the rattle fixed?

Does anyone know what ford actually fixes when they repair it? I have the same problem and Iím probably way out of warranty time. If they just replace the timing chain I could do it if and when I put a set of Super six heads on. Or is it a misalignment of the gears on the timing chain?
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Old 05-02-2009
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Old 05-02-2009
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Originally Posted by jimehat112 View Post
Does anyone know what ford actually fixes when they repair it? I have the same problem and Iím probably way out of warranty time. If they just replace the timing chain I could do it if and when I put a set of Super six heads on. Or is it a misalignment of the gears on the timing chain?
the kit comes with the chain the tension pulley some seals and thats about all i can remember
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Old 05-02-2009
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ah yes....the infamous timing chain rattle. Mines the worst its ever been...starting to be completely loud and extremely annoying. I'm gonna let it keep on goin' til something goes...then...junkyard low mile 04+ shortblock here I come.
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Old 05-02-2009
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What's better about the 04+ block?
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Old 05-02-2009
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sometime in 03 they fixed the tensioner issues...so...i figure...04+. I know 04+ sensors and electronics are a little different...plus some years didn't have an EGR system...so i'll use the new block and new heads and run my existing top end....that way all the sensors and everything will still work properly.
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Old 05-05-2009
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One reason I'm glad I got an 06.
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Old 05-05-2009
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so you guys are saying 04+ shouldnt have the timing chain rattle?
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Old 05-05-2009
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In theory
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Old 05-05-2009
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coooool!

well ill let you guys know when i get to higher miles hahah
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Old 05-05-2009
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How can I know if Mine has Timing chain problems or if its a newer 2003?

Or! would Ford have fixed the problem when they rebuild my engine 10 k ago?
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Old 05-05-2009
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Quote:
Originally Posted by Blackonblackfx4 View Post
How can I know if Mine has Timing chain problems or if its a newer 2003?

Or! would Ford have fixed the problem when they rebuild my engine 10 k ago?
trust me you will know when you get it.
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  #22  
Old 05-06-2009
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It is mostly the 2001 SOHC Ranger engines that had/have the timing chain rattle problem. I have heard of a few problems with the 02 but it seems to be rare. I have a very early 02 and at 98K miles it is still very quiet and I hope it stays that way.
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Old 05-06-2009
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yea, i deffinately have it. lol. got a price from local ford dealer. said that as long as nothing else is damaged itd cost $600 to fix it. but ill prolly have my dad do it.
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Old 05-06-2009
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Quote:
Originally Posted by jimehat112 View Post
Does anyone know what ford actually fixes when they repair it? I have the same problem and I’m probably way out of warranty time. If they just replace the timing chain I could do it if and when I put a set of Super six heads on. Or is it a misalignment of the gears on the timing chain?
Hah, I'd bet you a grand you couldn't do it. No offense, but there are no keyways or marks or any of that stuff to set the timing. There are special tools that align everything, and then a single bolt in the middle of every gear at the end of every shaft is tightened and torqued to a certain spec. The clamping pressure is all that holds it. The tools alone cost our shop $800, and that was our cost. An over the counter regular customer will pay over a grand for just the tools. Also, this ain't no small block chevy/ford. You have to pull the engine completely out of the truck (which isn't too bad) because there is a chain at the back of the engine. Heck, one of the block plugs that covers an access hole for the rear lower bolt is inside the trans bell housing. There is no way around pulling the engine... These engines are very very complex and a beotch to set the time on. Don't get me wrong, with the proper tools, Im sure a lot of people on here could figure it out. But it isn't for the average Joe or shade-tree mechanic. It would be more practical to run it till it blows then find a low mileage JY replacement to swap in. Hope I haven't offended anybody, but I have built one of these engines before, and it definitely isn't easy. EXTREME care must be taken to get the timing set correctly, and if its off, you get cam syncro codes... then you get to do it all again.

I can't remember how much the kit costs, but it comes with new chains, gears, tensioners, and the bolts. I would also recommend changing the oil pump.
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  #25  
Old 05-06-2009
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why would you change the oil pump?
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