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08-13-2016, 08:11 AM
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Ford Ranger Driver
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Join Date: Feb 2012
Posts: 2,172
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Quote:
Originally Posted by bjurke
tensioners should of been replaced at 70000 miles. at least one of your guides is gone. 2001 had weak guide design. front of motor guide most likely. will have to pull timing chain cover to check.
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The truck has 160,000 miles on it. I didn't own it at 70,000. Assuming they were changed around that time, then I'm 20,000 miles overdue. So far, I've only got the rattle at start up, so I'm thinking it's the pre tensioners, but it very well could be a bigger issue. I already have the tensioners, so I figure I don't really have much to loose by changing them. Best case, my rattle goes away. Worst case, I'm at the same place I am now.
Back to my original question; do you know if you need to prime the pre tensioners before instal?
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2002 Ford Ranger XLT 4x4, ext. cab, 4.0L v6
Superlifted 33x12.5 Duratracs
1995 Ford Ranger STX 4x4 ext. cab 4.0l v6 SOLD
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08-13-2016, 09:04 AM
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Mustang Owner
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Join Date: Mar 2012
Posts: 14,046
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Quote:
Originally Posted by Jimmyspy
The truck has 160,000 miles on it. I didn't own it at 70,000. Assuming they were changed around that time, then I'm 20,000 miles overdue. So far, I've only got the rattle at start up, so I'm thinking it's the pre tensioners, but it very well could be a bigger issue. I already have the tensioners, so I figure I don't really have much to loose by changing them. Best case, my rattle goes away. Worst case, I'm at the same place I am now. Back to my original question; do you know if you need to prime the pre tensioners before instal?
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You don't have to. I didn't.
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2017 Lightning Blue Mustang GT PP 430/402
CJ Pony Parts Lowering Springs | Texas Speed Longtubes | PMAS CAI | Lund Tuned | Borla S-Type Catback
2013 F150 FX4 5.0 - Sold
1998 Jeep Wrangler TJ 4.0 5spd - Sold
2001 Mustang Bullitt - Sold
2005 Level II - Sold
2001 Integra GSR - Sold
1999 XLT - May 2013 TOTM - Totaled
Quote:
Originally Posted by 2004 fx4 level II
fuckin Nissan shhhiitttttttttt!!!!!!!!!!!!!!!!!!
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08-15-2016, 01:21 PM
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Lil' Red
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Join Date: Jan 2011
Posts: 6,368
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Quote:
Originally Posted by Jimmyspy
The truck has 160,000 miles on it. I didn't own it at 70,000. Assuming they were changed around that time, then I'm 20,000 miles overdue. So far, I've only got the rattle at start up, so I'm thinking it's the pre tensioners, but it very well could be a bigger issue. I already have the tensioners, so I figure I don't really have much to loose by changing them. Best case, my rattle goes away. Worst case, I'm at the same place I am now. Back to my original question; do you know if you need to prime the pre tensioners before instal?
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Get the ford ones. You shouldn't have to prime them. You're most likely going to have to pull the top of the thermostat housing off to get to the tensioner. If it continues its MOST LIKELY the front chain that goes from the crank to the jackshaft.
__________________
2002 ford ranger FX4 Off Road | 4.0l v6 | Flowmaster 40 S/I D/O | JBA Headers | Rebello Racing cams | port and polished heads | K&n Drop-in filter | TwinStick | 31 Spline 4.10 Torsen rear diff | Alcoa rims | Sitting on 31's|
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08-15-2016, 03:52 PM
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henryford
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Join Date: Aug 2016
Posts: 38
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Re: 4.0 sohc timing chain rattle - everything you need to know
curious to know if 2010 =4L V6 rangers have this problem ????
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08-15-2016, 05:08 PM
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Ford Ranger Driver
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Join Date: Feb 2012
Posts: 2,172
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Quote:
Originally Posted by 02RangerFX4
Get the ford ones. You shouldn't have to prime them. You're most likely going to have to pull the top of the thermostat housing off to get to the tensioner. If it continues its MOST LIKELY the front chain that goes from the crank to the jackshaft.
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Sounds good.
Yea, I picked up the Ford ones (paid for it too)
__________________
2002 Ford Ranger XLT 4x4, ext. cab, 4.0L v6
Superlifted 33x12.5 Duratracs
1995 Ford Ranger STX 4x4 ext. cab 4.0l v6 SOLD
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08-15-2016, 06:41 PM
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Mustang Owner
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Join Date: Mar 2012
Posts: 14,046
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They still use the pre tensioners so it is very possible. Until you hear the noise I wouldn't worry about it.
__________________
2017 Lightning Blue Mustang GT PP 430/402
CJ Pony Parts Lowering Springs | Texas Speed Longtubes | PMAS CAI | Lund Tuned | Borla S-Type Catback
2013 F150 FX4 5.0 - Sold
1998 Jeep Wrangler TJ 4.0 5spd - Sold
2001 Mustang Bullitt - Sold
2005 Level II - Sold
2001 Integra GSR - Sold
1999 XLT - May 2013 TOTM - Totaled
Quote:
Originally Posted by 2004 fx4 level II
fuckin Nissan shhhiitttttttttt!!!!!!!!!!!!!!!!!!
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08-16-2016, 03:19 AM
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dumpster fire
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Join Date: Sep 2010
Posts: 5,363
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Re: 4.0 sohc timing chain rattle - everything you need to know
Quote:
Originally Posted by henryford
curious to know if 2010 =4L V6 rangers have this problem ????
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They updated the guides in mid 03, so you are better off over the older trucks. I would still replace the timing chain tensioners at 70k latest. My dads 07 only has 30k on it but I plan on doing it in the next few months due to age.
for what its worth, I bought my first ranger, a 2002, in 2004 with 32k miles on it. It started making the dreaded timing chain rattle between 2-3k rpms at 45k in 2005.
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08-16-2016, 06:27 AM
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Lil' Red
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Join Date: Jan 2011
Posts: 6,368
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Quote:
Originally Posted by Jimmyspy
Sounds good. Yea, I picked up the Ford ones (paid for it too)
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Let us know how it goes and if you need any help.
__________________
2002 ford ranger FX4 Off Road | 4.0l v6 | Flowmaster 40 S/I D/O | JBA Headers | Rebello Racing cams | port and polished heads | K&n Drop-in filter | TwinStick | 31 Spline 4.10 Torsen rear diff | Alcoa rims | Sitting on 31's|
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08-17-2016, 05:15 PM
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Ford Ranger Driver
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Join Date: Feb 2012
Posts: 2,172
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Quote:
Originally Posted by 02RangerFX4
Let us know how it goes and if you need any help.
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Thanks man, will do.
__________________
2002 Ford Ranger XLT 4x4, ext. cab, 4.0L v6
Superlifted 33x12.5 Duratracs
1995 Ford Ranger STX 4x4 ext. cab 4.0l v6 SOLD
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08-18-2016, 07:20 PM
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Ford Ranger Driver
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Join Date: Feb 2012
Posts: 2,172
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Quote:
Originally Posted by Jimmyspy
Thanks man, will do.
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Replaced both tensioners today. Lower one was a piece of cake, upper was a complete pain in the ass. There is just no room up there. Got the new tensioner in, but broke a thermostat housing bolt in the process. So I'll have to deal with that tomorrow.
__________________
2002 Ford Ranger XLT 4x4, ext. cab, 4.0L v6
Superlifted 33x12.5 Duratracs
1995 Ford Ranger STX 4x4 ext. cab 4.0l v6 SOLD
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09-01-2016, 11:28 PM
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Lil' Red
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Join Date: Jan 2011
Posts: 6,368
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Quote:
Originally Posted by Jimmyspy
Replaced both tensioners today. Lower one was a piece of cake, upper was a complete pain in the ass. There is just no room up there. Got the new tensioner in, but broke a thermostat housing bolt in the process. So I'll have to deal with that tomorrow.
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How's the timing chain noise now?
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2002 ford ranger FX4 Off Road | 4.0l v6 | Flowmaster 40 S/I D/O | JBA Headers | Rebello Racing cams | port and polished heads | K&n Drop-in filter | TwinStick | 31 Spline 4.10 Torsen rear diff | Alcoa rims | Sitting on 31's|
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09-02-2016, 04:58 AM
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Ford Ranger Driver
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Join Date: Feb 2012
Posts: 2,172
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Quote:
Originally Posted by 02RangerFX4
How's the timing chain noise now?
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The same if not worse Haha. Looking like I'll have to dig deeper.
__________________
2002 Ford Ranger XLT 4x4, ext. cab, 4.0L v6
Superlifted 33x12.5 Duratracs
1995 Ford Ranger STX 4x4 ext. cab 4.0l v6 SOLD
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09-02-2016, 07:49 PM
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Lil' Red
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Join Date: Jan 2011
Posts: 6,368
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Quote:
Originally Posted by Jimmyspy
The same if not worse Haha. Looking like I'll have to dig deeper.
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When you say lower are you talking about the one underneath the timing cover?
__________________
2002 ford ranger FX4 Off Road | 4.0l v6 | Flowmaster 40 S/I D/O | JBA Headers | Rebello Racing cams | port and polished heads | K&n Drop-in filter | TwinStick | 31 Spline 4.10 Torsen rear diff | Alcoa rims | Sitting on 31's|
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09-03-2016, 12:47 AM
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Ford Ranger Driver
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Join Date: Feb 2012
Posts: 2,172
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Quote:
Originally Posted by 02RangerFX4
When you say lower are you talking about the one underneath the timing cover?
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Naw, I meant the one for the rear chain.
__________________
2002 Ford Ranger XLT 4x4, ext. cab, 4.0L v6
Superlifted 33x12.5 Duratracs
1995 Ford Ranger STX 4x4 ext. cab 4.0l v6 SOLD
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09-03-2016, 06:51 AM
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Lil' Red
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Join Date: Jan 2011
Posts: 6,368
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Quote:
Originally Posted by Jimmyspy
Naw, I meant the one for the rear chain.
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If it's still making noise it's most likely the primary chain. Next thing I'd do is open the front cover and inspect the components inside.
__________________
2002 ford ranger FX4 Off Road | 4.0l v6 | Flowmaster 40 S/I D/O | JBA Headers | Rebello Racing cams | port and polished heads | K&n Drop-in filter | TwinStick | 31 Spline 4.10 Torsen rear diff | Alcoa rims | Sitting on 31's|
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