groaning noise at low speed FIXED with tranmission fluid change RESOLVED
#1
groaning noise at low speed FIXED with tranmission fluid change RESOLVED
so my car was beginning to make groaning sounds when in low gear and at low speeds. I'd be in a parking lot or leaving street parking and found it embarassing.
To my surprise, when I asked mechanic to perform transmission fluid replace along with annual oil change, it went away. I had to share :-)
To my surprise, when I asked mechanic to perform transmission fluid replace along with annual oil change, it went away. I had to share :-)
#3
Which transmission?
so my car was beginning to make groaning sounds when in low gear and at low speeds. I'd be in a parking lot or leaving street parking and found it embarassing.
To my surprise, when I asked mechanic to perform transmission fluid replace along with annual oil change, it went away. I had to share :-)
To my surprise, when I asked mechanic to perform transmission fluid replace along with annual oil change, it went away. I had to share :-)
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ATF change
I would appreciate any advice on this matter from any
of the good sources that participate in this excellent web site.
PS My Cat is only summer driven and stored in my heated aircraft hanger during our cold winters here in the N.E.
#10
You have the infamous "ZF bark". Some call it the "ZF squawk". Very common for the ZF 6HP26 transmission. The friction modifiers in the factory fill of Lifeguard 6 ATF gradually wear out, and the clutch packs start to grab momentarily during upshifts. That is what you are hearing....
The best way to cure it is an ATF drain-and-fill. You cannot drain out all 10 litres of fluid, but you can drain out from 6 to 7 litres especially if you allow it to drain overnight. 6 litres of fresh ATF is enough to silence the bark. It worked for my wife's 2006 XK8 back in mid-July at about 67,000 miles....
The best way to cure it is an ATF drain-and-fill. You cannot drain out all 10 litres of fluid, but you can drain out from 6 to 7 litres especially if you allow it to drain overnight. 6 litres of fresh ATF is enough to silence the bark. It worked for my wife's 2006 XK8 back in mid-July at about 67,000 miles....
Last edited by Jon89; 10-03-2013 at 12:09 PM.
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BrentGardner
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