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  #1  
Old 04-18-2010, 06:42 PM
handyobert handyobert is offline
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Default 4.0 SOHC timing chain

My 2001 ranger has a rattling noise at about 2500 to 3000 rpm while driving, it also seems to be slow to start at any temp, I mean it seems to turn over fine but turn over more than it should for a normal engine. what are the symptoms of timing chain trouble in these engines?
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  #2  
Old 04-18-2010, 06:54 PM
STL STL is offline
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Default Re: 4.0 SOHC timing chain

The early 4.0 have a known rattle problem. Some have been able to get the rattle to go away by using royal purple oil.

I think ford hada recall on 1998-200 due to the rattle but still had the rattle in the 2001-2003 vehicles also
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Last edited by STL; 04-18-2010 at 06:57 PM.
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  #3  
Old 04-19-2010, 01:52 PM
SuperTruckin SuperTruckin is offline
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Default Re: 4.0 SOHC timing chain

It sounds like an auto-tensioner rattle. I developed this in my truck a few years ago. It only does it when im driving down the road and i go over 2500 rpm. Havent had any luck with it yet.
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  #4  
Old 04-19-2010, 02:09 PM
01_ranger_4x4 01_ranger_4x4 is offline
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Default Re: 4.0 SOHC timing chain

myself along with many others also have the timing chain rattle. my truck has done it since i bought it when it had 10,000 miles on it, it now has 89,000 and its never caused any problems. i doubt your starting issue has anything to do with the timing chain, my guess would be that its in need of a tune up if it hasnt been done recently. also, i started running 0W-20 mobile 1 in mine and it quieted the chain rattle down quite a bit. i only hear it now when its cold.
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2001 Ranger 4x4 Stepside
-RCD Suspension lift
-33x12.5 BFG KM2's on Mickey Thomson classic locks
-4:56 gears
-Auburn gear LS
-James Duff traction bars
-Headers
-Flowmaster duals
-SCT X-Cal2 and some small exterior mods

http://www.cardomain.com/ride/2321189

2005 F-150 Lariat 4x4
-LED third brake light
-Weathertech floor liners
-Edge tuner
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  #5  
Old 04-19-2010, 04:29 PM
ZWilson07 ZWilson07 is offline
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Default Re: 4.0 SOHC timing chain

idk if mine is the same thing, but in my 06 4.0 I seem to have a sound when im taking off through lower speeds. I cant exactly say what the sound is but a slight humming or rattling coming from inside the engine compartment. Its only when I engage off the clutch, but when the clutch is pushed in it doesnt do it. Maybe a pulley or something??? the truck only has 53,000 so I wouldnt think itd already need a need pulley. any suggestions. and do the newer 4.0's like mine have the same problems as early 2000 4.0's or are they different. Didn't mean to hijack the thread or anything just thought it be easier for people to reply to this one.
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  #6  
Old 04-19-2010, 04:34 PM
01_ranger_4x4 01_ranger_4x4 is offline
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Default Re: 4.0 SOHC timing chain

Quote:
Originally Posted by ZWilson07 View Post
idk if mine is the same thing, but in my 06 4.0 I seem to have a sound when im taking off through lower speeds. I cant exactly say what the sound is but a slight humming or rattling coming from inside the engine compartment. Its only when I engage off the clutch, but when the clutch is pushed in it doesnt do it. Maybe a pulley or something??? the truck only has 53,000 so I wouldnt think itd already need a need pulley. any suggestions. and do the newer 4.0's like mine have the same problems as early 2000 4.0's or are they different. Didn't mean to hijack the thread or anything just thought it be easier for people to reply to this one.
from youre description that sounds more like a throwout bearing noise, not a timing chain. the timing chain issue was fixed in the mid 2000's
__________________
2001 Ranger 4x4 Stepside
-RCD Suspension lift
-33x12.5 BFG KM2's on Mickey Thomson classic locks
-4:56 gears
-Auburn gear LS
-James Duff traction bars
-Headers
-Flowmaster duals
-SCT X-Cal2 and some small exterior mods

http://www.cardomain.com/ride/2321189

2005 F-150 Lariat 4x4
-LED third brake light
-Weathertech floor liners
-Edge tuner
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  #7  
Old 04-19-2010, 08:45 PM
ZWilson07 ZWilson07 is offline
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Default Re: 4.0 SOHC timing chain

i listened to it more on the way to my otha job. instead of a hum i think its more like an air pressure noise. like i said sittin and idlein it doesnt do it but when im in gear it does. and kind of like an air slight whistle noise sort of like how the ac does in the truck wen u frst turn it on but it doesnt changewhetha i have ac on or not. and it seems lik its comin from the front of the dash and the engine meets but only when im in gear accelerating
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  #8  
Old 04-20-2010, 08:57 PM
ZWilson07 ZWilson07 is offline
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Default Re: 4.0 SOHC timing chain

come on guys anyone got anymore info. like i said it sounds more like air pressure type noise an only does when the clutch is engaged and im driving in the gears.
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