89 automatic erratic downshifting into 1st

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jacko
Posts: 416
Joined: Mon Feb 03, 2014 6:43 pm
Location: DFW Texas

89 automatic erratic downshifting into 1st

Post by jacko »

I've been off the forum for years.

My 89 has a long time issue of occasionally starting off in 2nd gear and then downshifting into 1st. Other than that it shifts fine. Kickdowns are fine. No slipping on upshifts. Connector on transmission is clean.

Adding a can of mouse milk to the transmission didn't help.

Ideas, other than pulling the valve body?

Jack
Jack
Arlington, Texas. USA

1989 635csi
Automatic
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86_6series
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Re: 89 automatic erratic downshifting into 1st

Post by 86_6series »

My 86 did that as well, that was the only little (hiccup) in the tyranny's performance. I got used to it.
86-635CSi
96-MB C220 SOLD
98-740i
71-Continental MK3
jacko
Posts: 416
Joined: Mon Feb 03, 2014 6:43 pm
Location: DFW Texas

Re: 89 automatic erratic downshifting into 1st

Post by jacko »

I remember MBs doing this, but it doesn't do it constantly. Also, when it kicks down to 1st it's too abrupt.

Sometimes it stars off in 1st fine.
Jack
Arlington, Texas. USA

1989 635csi
Automatic
User avatar
86_6series
Platinum Member
Platinum Member
Posts: 1069
Joined: Mon Apr 02, 2007 10:08 pm
Location: West Nyack, NY

Re: 89 automatic erratic downshifting into 1st

Post by 86_6series »

Jacko,

You reminded me the my mom's 1996 MB C220 did the same thing.
86-635CSi
96-MB C220 SOLD
98-740i
71-Continental MK3
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