From what I can tell, my 98 Yukon has torque converter shudder. I've heard there's an additive to use in the trans for this. Anyone have any recommendations?
Torque Converter Shudder additive
- Thread starter ocrstar
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This could be a sign that your fluid is "used up" and needs to be replaced. I would do a fluid flush before putting in the additive. A UOA might be a good idea as well.
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I'm inclined to agree with Tempest. Sure, as jdean says, there's over the counter friction modifiers available ..but Dex III forward should be fine out of the bottle.
I'd do a full fluid exchange via the cooling lines and see if the condition is still present.
I'd do a full fluid exchange via the cooling lines and see if the condition is still present.
The atf was changed out last year along with a filter. I used Havoline atf.
Try some Lubegard 1-2oz. per qt. is what helped my
brother inlaw's '00, stuff works good.
Lubegard,orLUBEGARD- Highly Friction Modified-ATF Supplement
brother inlaw's '00, stuff works good.
Lubegard,orLUBEGARD- Highly Friction Modified-ATF Supplement
When was your tranny last serviced for filter & fluid ??
If you don't know, we probably can't help you.
If you don't know, we probably can't help you.
Start with a full flush!
Was that a full flush(machine, cooler line, or TC drainplug), or just the 'pan drop'?
If it was just a pan drop, you need a full flush. Use DexronVI. If that isn't in the budget, any Mercon-V would work well without breaking the budget.
Depending on transmission mileage, maintenance over the last decade, and driving style, it could also be a mechanical issue. Poorly maintained transmissions always develop problems.
Was that a full flush(machine, cooler line, or TC drainplug), or just the 'pan drop'?
If it was just a pan drop, you need a full flush. Use DexronVI. If that isn't in the budget, any Mercon-V would work well without breaking the budget.
Depending on transmission mileage, maintenance over the last decade, and driving style, it could also be a mechanical issue. Poorly maintained transmissions always develop problems.
I tried Lubeguard today and it solved the problem right away. Good stuff! Thanks!
Yup i knew it would, it really helped my brother inlaws
'00...
This is going to sound a little crazy, but bear with me. I have a 98 Yukon and it used to do that as well. It was the worst when I was visiting a friend and had to drive on a long, winding mountain road. I also noticed it only did it when I had a few people in the car and was accelerating up to highway speed. I had the trans shop check it out and they found nothing. As routine maintenance, I changed the fuel filter and the shake stopped. Turns out if the engine started shaking a little from starvation, the converter wouldn't engage. Now, I change that filter twice a year. Ever seen how small that thing is? I also put a lot of miles on mine, so I run a lot of fuel through it.
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