AMC Eagle Den Forum

The Shop => Transmission Shop => Topic started by: acidburn1701 on December 22, 2012, 10:45:36 PM

Title: Shuttering on take off (please help)
Post by: acidburn1701 on December 22, 2012, 10:45:36 PM
I have an 84 eagle wagon with the 4.2 engine and auto transmission . If i try to take off fast something shakes (i think its in the tranny ) but if i let off the brakes and take off slow no problem . I just replaced the tranny mount and it drove fine for about 30 minutes and then started it up again ??????? I am lost . Any suggestions would be greatly appreciated .


                                                                                                           :amc:  Thanks in advance     :eagle:
Title: Re: Shuttering on take off (please help)
Post by: eaglefreek on December 23, 2012, 09:17:08 AM
Also make sure your transfer case is all the way engaged. I installed my transmission and a different transfer case a couple years ago and had the same issue. On mine the transfer case wasn't all the way in 2wd. Search false neutral on the forum.
Title: Re: Shuttering on take off (please help)
Post by: BenM on December 23, 2012, 01:40:52 PM
Check the throttle position rod adjustment as well. It will increase pressure on the clutches.
Title: Re: Shuttering on take off (please help)
Post by: acidburn1701 on December 30, 2012, 09:45:05 PM
Thanks for all the good advise . Changed fluid and filter no change  :'( . Checked to see if the transfer case was engaging and it is still same problem . It feels like something is slipping or not engaging at a certain rpm if i give it more gas it stops ???? Where is the  throttle position rod located ? Thanks again for all your help .
Title: Re: Shuttering on take off (please help)
Post by: eaglefreek on December 30, 2012, 11:04:14 PM
Quote from: acidburn1701 on December 30, 2012, 09:45:05 PM
Where is the  throttle position rod located ? Thanks again for all your help .
it is attached to the throttle lever on the carb via a bell crank and goes down to the left side of the transmission. Search throttle rod adjustment. Some call it the kickdown linkage.
Title: Re: Shuttering on take off (please help)
Post by: bigdog56e on December 31, 2012, 08:04:30 AM
  Think '84 may have still had lock up torque converter, could be the problem.
                                                                                          Eddie
Title: Re: Shuttering on take off (please help)
Post by: acidburn1701 on December 31, 2012, 08:22:29 PM
torque converter shutter sounds promising looked it up and symptoms match more or less . While looking i found this Dr. Trannys Instant Shudder Fixx made by lubegard  . Anybody heard of it or used it ? Reading a lot of good things about it so far .   Oh and how do you give an egg ? Id like to give all of you one for your help .
Title: Re: Shuttering on take off (please help)
Post by: Eagleearl on December 31, 2012, 10:25:49 PM
Just click where it says "click here to award a GOOD EGG".
Title: Re: Shuttering on take off (please help)
Post by: maddog on January 01, 2013, 04:59:09 AM
if i remember right you have to have posted at least ten times before you can start giving others good eggs.
Title: Re: Shuttering on take off (please help)
Post by: carnuck on January 13, 2013, 06:21:52 PM
Quote from: acidburn1701 on December 31, 2012, 08:22:29 PM
torque converter shutter sounds promising looked it up and symptoms match more or less . While looking i found this Dr. Trannys Instant Shudder Fixx made by lubegard  . Anybody heard of it or used it ? Reading a lot of good things about it so far .   Oh and how do you give an egg ? Id like to give all of you one for your help .

That is a pretty decent product, but did you already adjust your rear band inside the trans?
Title: Re: Shuttering on take off (please help)
Post by: acidburn1701 on January 15, 2013, 01:31:52 AM
no not yet . is it located inside the pan ? how do you adjust it ?

                                                                           Thanks for all the help  :hello2:
Title: Re: Shuttering on take off (please help)
Post by: carnuck on January 16, 2013, 06:39:58 PM
Drop the pan (after fluid draining) and loosen the rear band adjuster, then tighten the screw and back off 2.5-3 turns and lock the nut.
Title: Re: Shuttering on take off (please help)
Post by: TLC87Eagle on January 16, 2013, 08:28:32 PM
How many miles are on the trans?
Could very well be the rear band loosening up like carnuck mentioned.
My 2nd gear band broke a few years ago with 120k miles on the car, so I had the whole trans rebuilt when I pulled it out of there.
Title: Re: Shuttering on take off (please help)
Post by: acidburn1701 on January 17, 2013, 11:49:00 PM
Adjusted the band new fluid and filter same problem  ???  :banghead: Car has 96000 miles on it .

Title: Re: Shuttering on take off (please help)
Post by: TLC87Eagle on January 18, 2013, 01:10:42 PM
Does it shift hard or lightly?
Worst case could be clutches slipping.
Maybe try running some lucas stop slip in the ATF.
It worked well for me when my trans was high miles.
Title: Re: Shuttering on take off (please help)
Post by: acidburn1701 on February 06, 2013, 12:04:21 AM
It shifts smooth when its not jerking . Checked something off this topic hope its ok . Is the fluid in the transfer case suppose to be purple ? I have read about a coupling in there that can cause problems . Does anyone know what will happen if this breaks ?






                                                                                                                                        Many Thanks Again 




                                                                                                                                                                       
Title: Re: Shuttering on take off (please help)
Post by: captspillane on February 06, 2013, 05:10:49 AM
When the viscous coupler leaks its silicone based viscous fluid it looks like clear shampoo globbed at the bottom of the case. No difference in driving performance but noticeable lack of resistance connecting output yokes. It can displace fluid and starve bearings to ruin the case. I doubt that's your issue by your description.
Title: Re: Shuttering on take off (please help)
Post by: eagleman on February 06, 2013, 09:45:10 AM
Was wondering if you ever tried the lubeguard that you spoke of? The trans shop that my son took his 96 f-150 to put a can of it in his trans when he was having the same type problem and the problem went away. They did however recommend he put a can of it in every year or ten thousand miles. Still way cheaper then a rebuild.
Title: Re: Shuttering on take off (please help)
Post by: carnuck on February 08, 2013, 01:33:19 AM
It is awesome stuff. Just make sure you get the correct one for what you're working on. They have at least 4 different ones