Notices
1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

E40D Transmission shudders?

 
  #1  
Old 08-12-2009, 01:55 PM
94shorty's Avatar
94shorty
94shorty is offline
Freshman User
Thread Starter
Join Date: Aug 2009
Posts: 28
94shorty is starting off with a positive reputation.
E40D Transmission shudders?

Hi all,

Ford 'cherry' here. Just picked up a '94 reg. cab shortbox 2wd with the 4.9 and E40D from my father-in-law. It needs some work, but I have some updates planned soon.

Anyways, truck starts, idles and shifts fine, but at about 35-45mph, just barely on the gas to maintain that speed, the truck as best as I can describe shudders, like it is slipping in and out of overdrive quickly? If I give it more gas, it clears and accelerates normally. Manually turning off the overdrive helps a little, but doesn't seem to make too much of a difference. Once above that 55-60, no problems at all. Like I said, trans seems to work fine other than this issue. Any suggestions? Please tell me the tranny isn't about to go...

Anthony
 
  #2  
Old 08-12-2009, 02:13 PM
Old93junk's Avatar
Old93junk
Old93junk is offline
Post Fiend
Join Date: Nov 2008
Location: McKenzie River
Posts: 23,849
Old93junk has a superb reputationOld93junk has a superb reputationOld93junk has a superb reputationOld93junk has a superb reputationOld93junk has a superb reputationOld93junk has a superb reputationOld93junk has a superb reputationOld93junk has a superb reputationOld93junk has a superb reputationOld93junk has a superb reputationOld93junk has a superb reputation
You need a trans service with all the fluid including the torque converter changed, and the friction modifier added, that will end the shudders.
 
  #3  
Old 08-12-2009, 02:26 PM
quicklook2's Avatar
quicklook2
quicklook2 is offline
Post Fiend
Join Date: May 2004
Location: Lakewood, Ohio
Posts: 11,289
quicklook2 has a very good reputation on FTE.quicklook2 has a very good reputation on FTE.quicklook2 has a very good reputation on FTE.quicklook2 has a very good reputation on FTE.
welcome ti fte.

this is a very common problem.

usually just a complete fluid and filter change does the trick.

shudder fixx is a good additive if you think you need one.
 
  #4  
Old 08-20-2009, 10:51 AM
94shorty's Avatar
94shorty
94shorty is offline
Freshman User
Thread Starter
Join Date: Aug 2009
Posts: 28
94shorty is starting off with a positive reputation.
I replaced the filter and fluid and the shudder is gone. Thanks!

But, there is another problem though with my I6. There is almost a steady miss at idle and intermittently while maintaining cruising speed(barely on the pedal). If I raise the idle in neutral, the miss is easily noticed as well. I've replaced the air filter, plugs(gapped correctly at .044), cap & rotor, but still have the wires yet to do and although it is running better there is still this miss. It feels ignition related, not fuel related as more throttle seems to clear it out.
I'm hoping a friend can put his code reader on it tonight as the CEL hasn't come on at all. Like everyone else, I hoping to avoid replacing good working part$ in attempts to trace the down the problem. What symptoms does a a bad TPS give? I can't e-test this truck until I get this miss cured! Help!

PS. I know the firing order, but does anyone have pics of how their plugs wires are routed?
 
  #5  
Old 08-20-2009, 11:46 AM
quicklook2's Avatar
quicklook2
quicklook2 is offline
Post Fiend
Join Date: May 2004
Location: Lakewood, Ohio
Posts: 11,289
quicklook2 has a very good reputation on FTE.quicklook2 has a very good reputation on FTE.quicklook2 has a very good reputation on FTE.quicklook2 has a very good reputation on FTE.
what brand and type of plugs, rotor/cap?

wiring routing is not that big a deal on 4.9 as long as they are not touching each other.

probably not tps.

maybe ignition wires.

glad the shudder is gone.
 
  #6  
Old 08-20-2009, 12:57 PM
94shorty's Avatar
94shorty
94shorty is offline
Freshman User
Thread Starter
Join Date: Aug 2009
Posts: 28
94shorty is starting off with a positive reputation.
The truck is very new to me, so I'm not familiar with it's quirks yet. Just came back from a short ride at lunch and now that the overdrive shudder is gone, I can't really tell if the miss is what's making it stumble and buck(best way to describe it) at cruising speed(slightly on the throttle)
Trying to slowly rev it up to a higher RPM, the miss is noticeable, rev it up quick and it's not noticeable? Could the torque converter lockup or overdrive cause this? There are no clunks or noises and runs out alright, it's just an odd stumble pulling away from a stop but it is consistent when trying to maintain cruising speed between 30-40.
 
  #7  
Old 08-20-2009, 01:19 PM
quicklook2's Avatar
quicklook2
quicklook2 is offline
Post Fiend
Join Date: May 2004
Location: Lakewood, Ohio
Posts: 11,289
quicklook2 has a very good reputation on FTE.quicklook2 has a very good reputation on FTE.quicklook2 has a very good reputation on FTE.quicklook2 has a very good reputation on FTE.
answer what i asked you.
 
  #8  
Old 08-20-2009, 01:57 PM
BPofMD's Avatar
BPofMD
BPofMD is online now
FTE MD Chapter Ldr
Join Date: Jul 2005
Location: Millersville, MD
Posts: 47,130
BPofMD has a superb reputationBPofMD has a superb reputationBPofMD has a superb reputationBPofMD has a superb reputationBPofMD has a superb reputationBPofMD has a superb reputationBPofMD has a superb reputationBPofMD has a superb reputationBPofMD has a superb reputationBPofMD has a superb reputationBPofMD has a superb reputation
Did you refill the tranny with MERCON 5? That's what takes the shudder away.
 
  #9  
Old 08-20-2009, 02:43 PM
94shorty's Avatar
94shorty
94shorty is offline
Freshman User
Thread Starter
Join Date: Aug 2009
Posts: 28
94shorty is starting off with a positive reputation.
Originally Posted by quicklook2 View Post
what brand and type of plugs, rotor/cap?

wiring routing is not that big a deal on 4.9 as long as they are not touching each other.

probably not tps.

maybe ignition wires.

glad the shudder is gone.
Oh sorry, that' s what I intended to do in my previous post. economy brand cap and rotor, ac delco plugs. Wires are Motorcraft.
 
  #10  
Old 08-20-2009, 02:44 PM
94shorty's Avatar
94shorty
94shorty is offline
Freshman User
Thread Starter
Join Date: Aug 2009
Posts: 28
94shorty is starting off with a positive reputation.
Originally Posted by BPofMD View Post
Did you refill the tranny with MERCON 5? That's what takes the shudder away.
No, I used Dex/Mercon as I was told 5 was for the new trucks.
 
  #11  
Old 08-20-2009, 03:18 PM
quicklook2's Avatar
quicklook2
quicklook2 is offline
Post Fiend
Join Date: May 2004
Location: Lakewood, Ohio
Posts: 11,289
quicklook2 has a very good reputation on FTE.quicklook2 has a very good reputation on FTE.quicklook2 has a very good reputation on FTE.quicklook2 has a very good reputation on FTE.
Originally Posted by 94shorty View Post
Oh sorry, that' s what I intended to do in my previous post. economy brand cap and rotor, ac delco plugs. Wires are Motorcraft.
you get what you pay for.

get motorcraft parts and motorcraft copper resistor plugs, not platinums.

are the ac's platinum? if so that is part of the problem.

are the wires new?

are you positive the firing order is correct? check again.
 
  #12  
Old 08-20-2009, 07:08 PM
Milwaukee1979F150's Avatar
Milwaukee1979F150
Milwaukee1979F150 is offline
Posting Guru
Join Date: Jan 2008
Location: Trenton, MI
Posts: 2,408
Milwaukee1979F150 is gaining momentum as a positive member of FTE.
Keep turn off overdrive if you at 45 mph but if you go 55 then turn on

Been do with Ford Van E350. Almost all road I use are 45 mph so it annoy when it keep shift so keep off to prevent burn transmission.
 
  #13  
Old 08-20-2009, 07:42 PM
quicklook2's Avatar
quicklook2
quicklook2 is offline
Post Fiend
Join Date: May 2004
Location: Lakewood, Ohio
Posts: 11,289
quicklook2 has a very good reputation on FTE.quicklook2 has a very good reputation on FTE.quicklook2 has a very good reputation on FTE.quicklook2 has a very good reputation on FTE.
Originally Posted by 94shorty View Post
Manually turning off the overdrive helps a little, but doesn't seem to make too much of a difference.
Anthony
he already said he tried that.
 
  #14  
Old 08-21-2009, 10:56 AM
94shorty's Avatar
94shorty
94shorty is offline
Freshman User
Thread Starter
Join Date: Aug 2009
Posts: 28
94shorty is starting off with a positive reputation.
Good news! Truck runs great now! Passed my e-test(smog) this morning too!
Sorry, I answered Motorcraft wires in my previous post by mistake, they were a premium 8mm set that WERE on there and I replaced them with a set of Motorcraft wires and that cured it! I also blasted a little combustion chamber cleaner down the throttle bodies too and she's purring like a kitten. Truck no longer bucks at cruising speed either.

Now, all that's left is to do is the safety check on Monday. This will determine what's left for my few planned upgrades.

Thanks for all your help & suggestions.
 
  #15  
Old 08-21-2009, 11:23 AM
quicklook2's Avatar
quicklook2
quicklook2 is offline
Post Fiend
Join Date: May 2004
Location: Lakewood, Ohio
Posts: 11,289
quicklook2 has a very good reputation on FTE.quicklook2 has a very good reputation on FTE.quicklook2 has a very good reputation on FTE.quicklook2 has a very good reputation on FTE.
what did i win?

glad you got it figured out.

get rid of the other non motorcraft crap and you will be happier in the long run.
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
coachnichols
1978 - 1996 Big Bronco
14
02-24-2016 03:18 PM
DerbyPowerstroke
Modular V8 (4.6L, 5.4L)
10
07-15-2015 02:32 PM
joshofalltrades
Modular V8 (4.6L, 5.4L)
5
02-25-2012 01:44 AM
WuTang
1987 - 1996 F150 & Larger F-Series Trucks
3
01-31-2012 11:13 AM
KHaga
Clutch, Transmission, Differential, Axle & Transfer Case
9
10-06-2010 01:04 PM


Thread Tools
Search this Thread
Quick Reply: E40D Transmission shudders?


Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.