Re: IML: 81 shifting issues

[Matthew Gill <mgill3@xxxxxxx>]

Ok, I've got a trans leak to fix anyway, i think it's the pan.. so  
i'll have it flushed and a new pan/gasket installed, then see how the  
car shifts afterward. I may actually just have the rear-end fluid  
changed at the same time, actually. I don't see how it could be  
because of the trains fluid, it's got enough in there, and i just put  
in about half a quart of ATF+4 synthetic because a lot of it leaked  
out after i hit a dip in the road and jostled the pan. Bill mentioned  
he had the same issue after it sat for 5 weeks, well, when i bought  
the car it had sat for several weeks too... so maybe if i just change  
out all the fluids and drive it for a while, it will be fine, we'll  
see... i may go ahead and replace both u-joints while i have it in  
for the trans and rear-end, just for the heck of it. I hear that's a  
common problem after the car gets to about 100k miles or so, so maybe  
it's a good idea regardless.

Matt

On Dec 4, 2006, at 8:38 AM, Frederick Joslin wrote:

> Matt:
> I would change the trans fluid and rear end fluid, preferably using  
> all synthetic stuff and re-assess where you are. If you do this,  
> you know that you have done the best you can before making any  
> mechanical repairs. This give a solid starting point to make  
> decisions. If the clunk changes with the rear end fluid change it  
> points to a deteriorating rear end. If it changes with the trans  
> fluid change, look to the tranny.
>
> ----- Original Message -----
> From: "Matthew Gill"
> To: mailing-list@xxxxxxxxxxxxxxxx
> Subject: IML: 81 shifting issues
> Date: Sun, 3 Dec 2006 22:37:25 -0700
>
>
> Ok, i've put more fluid in the trans, and it's
> dead center in the OK mark, so i'm good to go
> as far as that goes. Now, the trans shifts
> very smooth, but also very LATE.. also, when
> it's down-shifting (after i take my foot off
> the gas) i hear a quiet "thud" from the rear
> end, and also feel it, slightly. Also, whenever
> i shift into reverse gear, i always felt the
> car shake and make quite a loud THUD noise.
> After adding more fluid to the trans and
> driving it around a bit, putting it in reverse
> no longer makes the car shake, at least not
> NEARLY as badly, just a quiet little thud and
> you'd feel the slightest shake, it seemed a
> lot more normal.
>
> I think i need some adjustments to both the
> trans, and probably the rear end.. at least
> this is my assumption so far. I haven't had the
> chance to check the rear end fluid, i don't
> know if i can unless the car is hoisted up...
>
> What are everyone's thought's on that?
>
> -Matt
>
>
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> Fred Joslin



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