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Old 09-06-2005, 07:16 AM
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Join Date: Apr 2004
Posts: 17
722.118 ('81 300D) transmission problem (bucking/jerking/surging in Drive)

My 300D with 722.118 transmission is bucking/jerking/surging forward in Drive
when stopped at a light which is the main problem. (like someone is gently
rearending you trying to shove the car forward). a couple times from stop,
before the bucking/jerking/surging forward became very serious, the
transmission didn't engage, and ended up revving very high (surge?) before
finally engaging. (I have to shift out of Drive at a light to get relief from
all the bucking/jerking/surging ......)

I've looked at the B2 piston, and it seems intact. actually i've disassembed
things, and can't seem to get the b2 all the way out, but the inner side
and outer side seem to be a solid piece. also the b2 band seems to
be in one piece - NOT sure how to tell if the b2 band is bad.

I had searched the archives, and it seems to confirm the later 722.3
transmissions are the ones that have the more common b2 failure, and there
are only a couple possible mentions of 722.18 b2 or b2 band failure.

SO... any ideas?


Last edited by o2pilot; 09-06-2005 at 07:23 AM.
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Old 09-06-2005, 03:49 PM
300SDog's Avatar
gimme a low-tech 240D
Join Date: Jan 2003
Location: central ky
Posts: 3,602
Caint say nothin about automatic trannies, but have you looked at the flex-discs on the driveshaft lately?
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Old 09-07-2005, 12:17 AM
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Join Date: Apr 2004
Posts: 17
it's not the flex discs

the car is trying to pull forward when I'm stopped at a intersection,
if I wasn't clear. driving along isn't a problem....

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