Possible Transmission Issue
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Junior User
Joined: Feb 2008
Posts: 90
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From: Goose Creek, SC
Possible Transmission Issue
I have a 2004 F250 with a 6.0l Diesel and a 5 speed automatic. The truck is 4 wheel drive. As far as I know it is completely stock and has 236,500 miles on it.
I thought that I was having stiction issues because when the truck is cold and when driving ~55 mph (1500 rpm) in 6th, the truck shudders until ECT gets to about 150F. This is at a constant speed, when accelerating or decelerating it doesn't shudder. Today I held 40 mph (1500 rpm) in 5th and there was no shudder. I don't know the TFT the shudder goes away at because the epiphany about the transmission was today. Once warmed up there is no to very slight shudder and only around 55 mph (1500 rpm). Above or below that the shudder goes away.
I suppose it could also be the carrier bearing.
At ideas would be greatly appreciated.
I thought that I was having stiction issues because when the truck is cold and when driving ~55 mph (1500 rpm) in 6th, the truck shudders until ECT gets to about 150F. This is at a constant speed, when accelerating or decelerating it doesn't shudder. Today I held 40 mph (1500 rpm) in 5th and there was no shudder. I don't know the TFT the shudder goes away at because the epiphany about the transmission was today. Once warmed up there is no to very slight shudder and only around 55 mph (1500 rpm). Above or below that the shudder goes away.
I suppose it could also be the carrier bearing.
At ideas would be greatly appreciated.
Fleet Mechanic
Joined: Aug 2012
Posts: 1,760
Likes: 21
When I had a bad injector it started out as a studder at about 50mph then got worse and missed bad and ran like crap.
.
Laughing Gas
Joined: Oct 2012
Posts: 794
Likes: 1
From: Ontario
Will not matter if one is failing, needs to be a contribution test with computer balancing turned off
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Junior User
Joined: Feb 2008
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From: Goose Creek, SC
Is this a possible 'Archoil removes stiction' thing or a 'the injector will destroy itself and the engine if not replaced' thing?
Id really prefer the Archoil method if that may possibly work. I'm not looking forward to trying to replace the injector(s) in my driveway.
Id really prefer the Archoil method if that may possibly work. I'm not looking forward to trying to replace the injector(s) in my driveway.
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Is this a possible 'Archoil removes stiction' thing or a 'the injector will destroy itself and the engine if not replaced' thing?
Id really prefer the Archoil method if that may possibly work. I'm not looking forward to trying to replace the injector(s) in my driveway.
Id really prefer the Archoil method if that may possibly work. I'm not looking forward to trying to replace the injector(s) in my driveway.
Josh
Fleet Mechanic
Joined: Aug 2012
Posts: 1,760
Likes: 21
Is this a possible 'Archoil removes stiction' thing or a 'the injector will destroy itself and the engine if not replaced' thing?
Id really prefer the Archoil method if that may possibly work. I'm not looking forward to trying to replace the injector(s) in my driveway.
Id really prefer the Archoil method if that may possibly work. I'm not looking forward to trying to replace the injector(s) in my driveway.
Since your having issues cold the Archoil may clear it up. It's worth a try. Sometimes the injectors take a while to fail enough to pinpoint the bad one.
While it's not ideal to replace one in the driveway they really aren't that hard to replace. You do need to be very clean and very particular about your work.
.
Former Vendor
Joined: Feb 2010
Posts: 1,803
Likes: 5
I really don't think a failed injector will destroy the engine, not in your case anyway.
Since your having issues cold the Archoil may clear it up. It's worth a try. Sometimes the injectors take a while to fail enough to pinpoint the bad one.
While it's not ideal to replace one in the driveway they really aren't that hard to replace. You do need to be very clean and very particular about your work.
.
Since your having issues cold the Archoil may clear it up. It's worth a try. Sometimes the injectors take a while to fail enough to pinpoint the bad one.
While it's not ideal to replace one in the driveway they really aren't that hard to replace. You do need to be very clean and very particular about your work.
.
If you don't have a source on the injectors, we sell OEM Ford ones for $203.45 (though with a $180 core...bummer, I know). Just beware of the supposed 'rebuilt' ones out there that don't come with new spool valves. Good luck!
FORD OEM 6.0L V8 Injectors for 2003-2004 models 3C3Z-9E527-ECRM
In addition to the Archoil, consider also the Hot Shot Secret line of products. Folks generally go back and forth wondering which one is better. Then of course, there's Rev-X if you want a quick answer as to whether or not dirty injectors are the culprit. We carry all three. Hope this helps!!
http://www.ficmrepair.com/index.cfm/...rod/prd129.htm
Former Vendor
Joined: Feb 2010
Posts: 1,803
Likes: 5
I really don't think a failed injector will destroy the engine, not in your case anyway.
Since your having issues cold the Archoil may clear it up. It's worth a try. Sometimes the injectors take a while to fail enough to pinpoint the bad one.
While it's not ideal to replace one in the driveway they really aren't that hard to replace. You do need to be very clean and very particular about your work.
.
Since your having issues cold the Archoil may clear it up. It's worth a try. Sometimes the injectors take a while to fail enough to pinpoint the bad one.
While it's not ideal to replace one in the driveway they really aren't that hard to replace. You do need to be very clean and very particular about your work.
.
If you don't have a source on the injectors, we sell OEM Ford ones for $203.45 (though with a $180 core...bummer, I know). Just beware of the supposed 'rebuilt' ones out there that don't come with new spool valves. Good luck!
FORD OEM 6.0L V8 Injectors for 2003-2004 models 3C3Z-9E527-ECRM
In addition to the Archoil, consider also the Hot Shot Secret line of products and, if you need an immediate answer as to whether an injector is the culprit, Rev-X. We carry all three.
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