Tranny not shifting
Thread Starter
Cruising
Joined: Oct 2008
Posts: 13
Likes: 0
From: Soldotna Alaska
Tranny not shifting
Finally was able to get my new ride, '91 L98 w/automatic tranny out for a drive. When shifting thru the gears manually all was well. When excelerating 'normally' all is good. But from a stand still and hitting it hard, she'll excelerate right up but doesn't want to automatically shift through the gears unless I back off on the pedal. When cruising it'll shift down when you hit the pedal which seems normal. Any suggestions??
Racer
Joined: May 2009
Posts: 421
Likes: 2
From: van buren ar
check your throttle valve cable and make sure its not super tight at wot.if it is use a small screwdriver to realease the holding tab on the cable near the throttle body,then from inside the car quickly step the pedal down to the floor and this should get you close to the right TV cable tension.make sure to push the retaining clip back in place.also if the fluid is brown and burned smelling it may be time for a rebuild.
Thread Starter
Cruising
Joined: Oct 2008
Posts: 13
Likes: 0
From: Soldotna Alaska
Okay checked the TV cable at WOT, Hmmm, it's as tight at a piano wire! Seems as tight at the pedal cable. So if I understand your post - I disconnet the TV cable, depress the pedal to WOT, let off the pedal and then reconnect the TV cable. Sounds too good to be true but sure will give it a try. I'm assuming there is some type of automatic cable adjusting mechanism somewhere? My '91 Service maunal says refer to "90 book for automatic transmission section. that sucks...
Thanks for the advise - I'll repost after trying this..
Thanks for the advise - I'll repost after trying this..
Thread Starter
Cruising
Joined: Oct 2008
Posts: 13
Likes: 0
From: Soldotna Alaska
What you suggested worked great. From a dead stop it accelerates through the gears great but now if I'm slowly cruising it doesn't want to down-shift into 1st, only 2nd then up. Will the cable self adjust, eventually get tighter on it's own?? Thanks for the advise!
Safety Car
Joined: Sep 2001
Posts: 4,157
Likes: 554
From: Glenbeulah Wi
Finally was able to get my new ride, '91 L98 w/automatic tranny out for a drive. When shifting thru the gears manually all was well. When excelerating 'normally' all is good. But from a stand still and hitting it hard, she'll excelerate right up but doesn't want to automatically shift through the gears unless I back off on the pedal. When cruising it'll shift down when you hit the pedal which seems normal. Any suggestions??
