Converter shudder
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Converter shudder
I have a 96 302 - 4R70W, 92,000 miles. Shudder first noticed about 6 months ago. Had the transmission serviced at the Ford dealership, Mercon V was used retroactively. Added a bottle of Red lubeguard.
Shudder improved marginally for a few months, but never fully dissappeared, mainly around 45mph (3.55 gears). Recently the Shudder has become worse, and also has begun to show up at lower speeds, 30-35.
What I want to ask is what I should expect to pay to have a tranny shop to FIX this problem - and what will they have to do? I don't want a temporary solution. I want the problem FIXED, permenantly -- as-in better than when it was new. I've put a lot of money into this truck already between a fuel pump, u-joints, ball joints, brakes, seals and about every electrical sensor it is possible to replace and I'm really, really tired of this damn transmission shudder.
Will a new torque converter solve the problem? Do I need a whole new transmission?? Is there an aftermarket converter that is better rather than another OEM unit??
Shudder improved marginally for a few months, but never fully dissappeared, mainly around 45mph (3.55 gears). Recently the Shudder has become worse, and also has begun to show up at lower speeds, 30-35.
What I want to ask is what I should expect to pay to have a tranny shop to FIX this problem - and what will they have to do? I don't want a temporary solution. I want the problem FIXED, permenantly -- as-in better than when it was new. I've put a lot of money into this truck already between a fuel pump, u-joints, ball joints, brakes, seals and about every electrical sensor it is possible to replace and I'm really, really tired of this damn transmission shudder.
Will a new torque converter solve the problem? Do I need a whole new transmission?? Is there an aftermarket converter that is better rather than another OEM unit??
Post Fiend
Joined: May 2004
Posts: 11,289
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From: Lakewood, Ohio
i wish all repairs were permanent, as in fixed once, but in the real world that does not happen.
when they serviced trans. what exactly did they do?
you need new fluid, filter and torque convertor drained. did they do that?
i can't remember which one but one of the trans. fluid has an additive in it for shudder.
i used lucas trans. treatment and with all that i listed above no more shudder.
also something called shudder fixx, google it for info, has had good reviews.
good luck.
when they serviced trans. what exactly did they do?
you need new fluid, filter and torque convertor drained. did they do that?
i can't remember which one but one of the trans. fluid has an additive in it for shudder.
i used lucas trans. treatment and with all that i listed above no more shudder.
also something called shudder fixx, google it for info, has had good reviews.
good luck.
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When they serviced the trasmission, they replaced the filter and the fluid. The converter was also drained. It didn't solve the problem.
The red Lubeguard specifically stated that it was for transmission shudder. It didn't solve the problem either.
At this point i WANT a new transmission/rebuild/new converter or whatever. I'm asking which alternative will solve the problem, and how much I should expect to pay.
If a moderator could please move this thread to the Transmission forum, I apologize for posting in the wrong forum. Thanks
The red Lubeguard specifically stated that it was for transmission shudder. It didn't solve the problem either.
At this point i WANT a new transmission/rebuild/new converter or whatever. I'm asking which alternative will solve the problem, and how much I should expect to pay.
If a moderator could please move this thread to the Transmission forum, I apologize for posting in the wrong forum. Thanks
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No, not that I have noticed anyway. It only does it between 35-50mph, only on light acceleration, most pronoucedly at around 45mph. If I have my foot in it, it shifts fine.
Last edited by naustin; Oct 12, 2005 at 08:32 PM.
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Talked to the ford garage. Turns out that when I had the trans "serviced" about 6 months ago, they only dropped the pan and changed the filter. I figure they only got maybe 5 quarts of the 14 out. Explains why the shudder got better, but never completely gone, and now came back and getting worse.
Stupid half-*** dealership service department. They said they "used to" drain the converters too, but don't anymore on anything, ever.
Will be doing it right this weekend and hopefully the shudder will go away.
Stupid half-*** dealership service department. They said they "used to" drain the converters too, but don't anymore on anything, ever.
Will be doing it right this weekend and hopefully the shudder will go away.
Fleet Owner
Joined: Aug 2005
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From: Easton,Ks
You might want to look at this than, It was wrote by the guy that came up with the 4R70W.
<!--StartFragment --> Ford Overdrive Transmissions 101
http://www.tccoa.com/articles/tranny...on/index.shtml
<!--StartFragment --> Ford Overdrive Transmissions 101
http://www.tccoa.com/articles/tranny...on/index.shtml
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Post Fiend
Joined: May 2004
Posts: 11,289
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From: Lakewood, Ohio
when you 'fully' service your transmision i think it will work much better.
be carefull when pushing on the filter, your filter will come with instructions on how to do this properly.
i suggest you use the lucas trans additive. it is pretty thick, i warmed mine first. do not put it in first as it even warmed is very thick. i suggest after the trans is almost full and warm.
good luck and i hope this is a 'permanent' fix for you.
be carefull when pushing on the filter, your filter will come with instructions on how to do this properly.
i suggest you use the lucas trans additive. it is pretty thick, i warmed mine first. do not put it in first as it even warmed is very thick. i suggest after the trans is almost full and warm.
good luck and i hope this is a 'permanent' fix for you.
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Subford - Thanks for the link to that article, I'll be reading it right after I finish this post.
Quick- Thanks, I hope so too.
EDIT) Subford- that article recommends recalibrating the EEC as part of the fix for the shudder... I hadn't seen any mention of that on this site in all the different threads up to this point. I'm not going back to my dealer. How can I accomplish the recalibration??
Quick- Thanks, I hope so too.
EDIT) Subford- that article recommends recalibrating the EEC as part of the fix for the shudder... I hadn't seen any mention of that on this site in all the different threads up to this point. I'm not going back to my dealer. How can I accomplish the recalibration??
Last edited by naustin; Oct 16, 2005 at 09:21 AM.
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The author of the article suggested that the "recalibration" could be "obtained from your dealer".... So I don't think he was talking about just a reset. Could this be a shift program alteration to move the shift points around?? If the shift to OD was delayed around 45mph, the shudder would have a lot fewer opportunities to present itself. I thought it might alter shift points or change the point of TC lockup to help minimize the problem - possibly at the cost of lower fuel milage - but who cares when you're trying to save a trans...
Fleet Owner
Joined: Aug 2005
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From: Easton,Ks
Note that he was talking about cars and not trucks so this may not apply.
I saw this also on another forum, there is a problem with the 1996 & 1997 program and you can get a fixed program from your FORD dealer. I think they just replace the EPROM or ROM in the PCM. Did the 1996 and 1997 have flash memory? If so they may just flash it. It may not be a freebee though.
This is not my area of expertise, so don't hold me to anything on the 4R70W.
I bough a 1995 with a 4R70W in it and have a few books on it. I ran across this web site while looking for information on the fluid for it and I though I would share it with you. I hope it helped you.
Good Luck Bill
I saw this also on another forum, there is a problem with the 1996 & 1997 program and you can get a fixed program from your FORD dealer. I think they just replace the EPROM or ROM in the PCM. Did the 1996 and 1997 have flash memory? If so they may just flash it. It may not be a freebee though.
This is not my area of expertise, so don't hold me to anything on the 4R70W.
I bough a 1995 with a 4R70W in it and have a few books on it. I ran across this web site while looking for information on the fluid for it and I though I would share it with you. I hope it helped you.
Good Luck Bill
Last edited by subford; Oct 17, 2005 at 12:12 PM.
Post Fiend
Joined: May 2004
Posts: 11,289
Likes: 6
From: Lakewood, Ohio
naustin,
i think you should just do a complete fluid, filter change and add lucas additive and disconnect the battery while you are doing it.
i read that article and that was way more than you need to do.
just my 2¢
i think you should just do a complete fluid, filter change and add lucas additive and disconnect the battery while you are doing it.
i read that article and that was way more than you need to do.
just my 2¢
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did the full fluid change and the shudder has dissappeared. Have not added any modifiers yet either... Will probably dump in some Lubeguard, or Dr. Tranny, but even without it - the shudder is gone. Will update this thread if/when it does come back.
Post Fiend
Joined: May 2004
Posts: 11,289
Likes: 6
From: Lakewood, Ohio
naustin,
glad it worked out for you.
did the fluid or filter look bad?
i put lucas in but never tried it without it. i always had good luck with the lucas line so just thought it would help.
guicklook
glad it worked out for you.
did the fluid or filter look bad?
i put lucas in but never tried it without it. i always had good luck with the lucas line so just thought it would help.
guicklook