sweet99

My "new" '99 Automatic with 4.6 has a transmission shake, especially in OD at low speeds. Feels like it is running on 7 cylinders. I am going to check the TSB's but thought this may be very common and somebody will know what it is and the fix, hopefully! I was told that the tranny needs new fluid and there is an additive that is supposed to remedy this possible converter shake/shimmy. Ring a bell with anyne? Thanks, Mark

QuickShortBus

You might want to post this in the regular 4.6 forum not the '05+ 4.6 as our motors and transmissions have little in common.

stevenson

My 99 GT auto did the same thing. It was still under warranty then and was taken care of. The problem is that I don't remember what the problem was. Sorry, but it must be a common problem.

Coolwater

It's the torque converter. Possibly can be fixed with just a fluid and filter change, however I had changed the fluid with the same problems and the shake was still there. Then you have to replace the torque converter to remidity the problem.

rex7010

My Dad ( God rest his soul .. my best friend ) anyway .. he had / my Mom has it now..
a 97 Windstar .. it sounds just like YOUR problem.. but you won't like my answer.. it needed a trans overhaul.. sorry.. as far as adding.. snake oil/ additive.. you are wasting your money and may cause more problems...

JMO


best of luck


Rex

sweet99

Thanks. I did a google search and came up with the problem and supposed answer. Use the correct Dexron 5 fluid and an additive for the problem. As stated it is the torque converter and if needed then that is what I will have to get! Thanks and I will check out the 4.6 forum for older cars, didn't see it, sorry! Mark

olym4gery

Turn of O/D at low speeds.