I was doing some exhaust work, and figured I'd do the tranny fluid and filter.

When I got the pan off, the magnet was covered in metal, so I cleaned it, and put in a new filter, and filled it up. (5qts)

Now, it seems like it slips, and makes a screching sounds when it shifts under WOT. I think the fluid is right on, though these dipsticks are hard to be forsure because one side reads right, and the other side is covered in tranny fluid that must be still in the dipstick from filling it up.

I dont know what it is, but I hope this isnt my tranny going by by.

Did I hurt it by changing the fluid? Is the Autozone filter starving it?

I also broke my tranny mount last night and anther today (autozone ones suck), so I threw on a poly mount.

Thanks,
James

 

good choice on the poly tranny mount

bad choice on changing fluid. if u drained all the fluid and added u new, u can count on that tranny going out in the near future. by adding new fluid, u added more lubrication. so all the friction in there is gone and is prolly why it is slipping now.

have seen it happen numerous times before and actually did it myself once with the same result. NEVER EVER drain fluid and add new.

in a tranny u need the friction to grip.

 

ummm...is there no tranny fluid that can help, am i just screwed now?

There has to be something I can do now, I might still have the tranny fluid that came out.

Any ideas?

 

Basically, you're screwed now. I changed mine this past Jan. and the tranny started doing the same thing after the fluid change. Before the change I had no problems what so ever. The car would even chirp from the 1-2 shift. The problem has since gotten worse and just bounces off the rev limiter during the shift @ WOT. Now, I'm looking at $750 bucks for a rebuild.

 

Not meaning to steal your thread but, today I just bought a new transmission filter and fluid, but it started raining so I didn't change it. My fluid needs changed so what am I supposed to do?

 

It's your car so you'll have to make that decision. But we are not the only two that I've heard of this happening to after a fluid/filter change. Here is a link to the question I posted about my tranny problems and a couple of others posted that they encountered the same problem.


http://web.camaross.com/forums/showt...hreadid=119709

 

why does the fluid changed? not trying to be an ***, just asking. like i stated before, it is NOT a good idea to change the fluid.

 

The tranny fluid should never be changed? That seems odd, but I am no tranny expert. I've had mine serviced twice since I got the car at 23,000 miles. Maybe that is why it started going on me at 75,000 miles.

 

Try overfilling it a good bit. Usually it's a good idea to change the fluid, something else must be wrong.

 

Being an ex GM tech, here is what GM says (and what I always have done):

If you an unsure of the previous owner's care of the car and if you are above 75k or so miles, changing the trans fluid for the first time can have bad affects, as previously stated. Even the newer cars that say they can go 100k between trans fluid changes, should be changed much sooner.

What happens is the high levels of detergent in new fluid can break up some of the "sludge" that has worn down the internals in the trans and what was basically keeping it all together and working. Now you have that crap that has broken free running around in the trans, causing these and other issues for you.

However, all hope may not be lost, you can try these two things that have both worked for me (no flames please, these are cheap to try and have both worked very successfully for me):

1) You can flush the entire transmission system. Places like Grease Monkey or Jiffy Lube do this service for around $80-90 and get most all the sludge and old fluid out (about 98-99%). This has worked for me and really made a huge difference.

2) You can even try a cheaper fix. I had a Pontiac 6000 that has a transmission that would not shift after 2nd gear. I bought the Slick 50 Transmission Treatment (not the high mileage one) and poured it into the dirty trans fluid. I sat in the parking lot of the parts store and ran it through all the gears, holding the brake and bringing the RPM's up and then letting off....all gears worked, inlcuding overdrive and reverse, and it shifted very smooth until I sold the car 9 months later. At about $8, its worth a try too.

That is my 2 cents, and you certainly do not have to try anything, but I think you may give it a shot....its better than a rebuild if you do not have the cash at the moment......

Good luck, and if you try anything, let us know if it worked or not.

 

I've heard the same theories about new fluid loosening up old gunk and causing problems. The most common thing would be the gunk floating around sticking valves. This would cause no or late shifts, not slipping. If you didn't have shifting problems before, then your trans. is probably not shot. First question: was there a lot of metal in the fluid? If so, was it magnetic? If there is alot of debris in the pan it may be normal clutch wear. Chances are, if your trans. shifted fine before, the clutches and band are fine. Second question: Did you remove the seal at the end of the pick-up tube? There should have been a rubber seal on the end of the tube that usually doesn't come out with the filter. I typically have to use a pick to get it out. If you still have that seal up there and installed another filter and seal, you may not have a good seal and are sucking air past the neck of the filter. Third question: Did you get the new filter seated? Typically pushing it in by hand won't do it. I use a soft hammer to lightly tap the filter until I hear it seat.
Did you disturb any of the electronics? If you disturbed the connections you may have a 2nd or 3rd gear start that feels like a slip. If all of the above are fine then add another quart or two. If the performance picks up then you were just low or the filter isn't seated and you filled it up to where it used to suck air. Another possibility is a cracked filter, allowing air into the pick-up. This can cause a noise like you described. If you pull it out, put your hand over the hole where it draws from the pan and suck on the tube. It should not leak.
Before I condenmed the trans., I would take some basic diagnostic steps to rule out anything simple. Like I said before, if it wasn't broke before, a fluid change shouldn't break it now. Try this before you shell out $1000 for a trans. you may not need. Let us know how this comes out or if you need more help. Good luck!!!!

 

if the tranny is for sure slipping and you have no more options try adding a pint of brake fluid and driving it around for a few days being easy on it, you dont want to fry the clutches. if that dont work add more brake fluid. one time i even drained out all the fluid and used straight brake fluid, i drove it easily until it quit slipping then i just drained it out a put in new tranny fluid, drove fine for like 6 months before i sold it. remember this is a last option and it does really work----------------sometimes.

 

The same thing happened to my dad's 96 gmc jimmy. When he had the fluid changed it started slipping, eventually ruining the trans. It only had 40,000 miles on it, I wish I had seen this post sooner. I could have saved him the cost of the rebuild. At least now I know.

 

kjlvilla is right on, after a certain point, especially if the trans got neglected over the years, fluid changes can be the worst thing for it. If you have high miles and a trans that wasnt exactly maintained as it should of been, and it runs good now, leave it alone.

I actualy heard this from my friends dad who used to drag in the 70s.

JMZLT1 had a similar problem as i did with my 88' caprice, a fluid change i didnt even authorize turned ugly quick, never had any problems with the 700R4 unitil the fluid change. Wound up needing addiotnal work to undo the damage.

 

My car did the same thing after fluid /filter change, it was done by a tranny shop....It was fine till the change, it would bark 2nd as stated above but it didn't bang the limiter in 2-3 shift, after the change it wouldn't bark 2nd and would bang the limiter 2-3 I am gonna try the flush idea first and go from there.....I have a stall waiting to go in so...I am hoping for the best.....I'll let you all know when it is done....