Transmission Grinding noise

[rs6queens]

My transmission slipped on a full throttle from a stop. This only happens from a stop, when the car is at regular speed all is ok. There is another problem that happend overnight. I got into my car today and the transmission is grinding like something is braking inside but that happens when the car is on drive and the grinding comes and goes.

Anyone knows what this could be ?

[vitalian]

I'm not much of an expert, but I'll go ahead and be Captain Obvious with these two observations: 1) That sounds really, really bad. 2) You should probably stop driving the car.

[rs6queens]

Grinding noise found, it was an axle. Now I have to see why did it slip.

[TozoM8]

If it slipped you must have a code in the TCU.

[rs6queens]

I did the fluid change about 200 miles ago, maybe its not filled to the level it should be.

[905084]

Tranny slipping / low fluid will generally not make a grinding noise unless it's already eaten itself. How did you know it was the axle? If it is the axle, have you done CV joints recently? Or do they need to be done? Torn boots? Does it make noise when you turn or only under full throttle accell? Axle fluid and tranny fluid I'm pretty sure are separate, so a tranny fluid change would not specifically affect an axle.

More info for a better diagnosis.

[kevin]

This thread doesn't make sense... Yet.

[4everRS]

This thread doesn't make sense... Yet.

Hehe

http://i864.photobucket.com/albums/ab210/crocodile64/Sense.jpg

[vitalian]

Awesome!

[ben916]

'Queens - I hope you have an aftermarket warranty.....

Also, Full throttle from a stop is no better than 1/2 throttle with a gradual increase in pedal...At least in my experience...

[rs6queens]

Little update. Went for a drive came back home on a flatbed. Lost all the gears. When the car is in Drive it's same as in Neutral.

[905084]

What's the code?

[rs6queens]

i will check for the codes this weekend. just sick of the car to do anything.

[905084]

FWIW...since it happened within 200 miles of your fluid change and nothing else was done to the car, start there. Did you change the filter, and how did you fill it?

Three more fingers of Jack and it'll get better....

[rs6queens]

The fluid was changed with the filter. Used Mobile 1 fluid , 8 quarts. Filled the transmission the proper way. I bought the car few months ago, I know the transmission was rebuild last year. I'm trying to find out who did the re-build.

[TozoM8]

Do you still have reverse?

[rs6queens]

There is no Reverse and no Drive. When I put in D or R , there is noise coming out from the transmission but the car is not moving.

[Bigglezworth]

This is a sign of the clutch packs being toast. Your transmission is toast. Lots of Ford Taurus owners in 1990 and 1991 experienced exactly what you have described.... Sorry to hear.

[905084]

Pull a 1/2 pint out of the trans and look and smell. If it's clean, might be the transfer box. If it's burnt pull the pan and there should be a load of filings if it is grinding.

[4everRS]

Tozo, is there any circumstances that the trans would slip and not throw or store a code?

[905084]

EPC light on? Drain a 1/2 pint tranny fluid and smell. Burnt would be clutch packs, clean would be transfer box

[rs6queens]

No EPC light, I'm gonna check the fluid next week. When I lost all the gears I had a terrible fluid smell but no sign of fluid under the car.

[TozoM8]

It sounds like a broken axle.

[rs6queens]

i will let you guys know next week, when i get the car on the lift.

[905084]

If you do the outer CV joint and don't get the joint over the C clip on the axle it will only engage the outer 3/8 inch or so. Still let you put it all together and seem normal, but with only 3/8 inch of the splines engaged it could tear it up.

In lieu of that, drain a little tranny fluid, transfer fluid, and gear box fluid and whichever is making metal....

[TozoM8]

The reverse is a different clutch so if it doesn't have codes and it is not 4-5qt low and it makes noise in D or R then it is a broken axle.

[Bigglezworth]

It sounds like a broken axle.The other three should still work....

[TozoM8]

Not with open diff. It would work with locking diff.

[Justin9212]

Could the converter have come apart internally?

[TTurboguy]

There is no Reverse and no Drive. When I put in D or R , there is noise coming out from the transmission but the car is not moving.

This could also be caused by any of the axles or rear driveshaft. If any break or are unbolted, the car will not move. Maybe your grinding noise was caused by a cv joint failing. I have also seen the bolts loosen and fall out. When you want to work on the car again, I suggest checking the driveshaft and axles while in drive. If they are turning, you know the tranny is working. Please be carefull and follow safe practices. Hopefully, this will help with your diagnosis.

[TozoM8]

Could the converter have come apart internally?

That would throw a code.

[905084]

Got to say, most interesting thread I've seen...car not moving, no codes, tranny noise, tranny rebuilt last year.....I think it was Colonel Mustard in the Study with a pipe wrench.

[TozoM8]

If it shows speed when makes the noise then it is the driver's side front axle.

[905084]

Colonel Mustard in the Library with the Pipe wrench? Axle should be easy, banging around when you put it gear with no fun motion? I'm thinking axle, for sure, but why? no history of RS6 axle failures that I know of. Axle failure should be "I woke up this morning with my head sewn up to the carpet" and I wonder why...