To Top

Fixing 1994 Buick Lesabre Transmission Problems

When my 94 Buick is cold and I put in it in drive or reverse it bumps, but won't go forwards or reverse for about 10 to 15 minutes, till it warms up. Then once warmed up it goes into gear and works perfectly until it cools down, then same over again. I changed fluid and filter and no difference. What do I do?

Ad

By Richard from Huntsville, AL

Add your voice! Click below to answer. ThriftyFun is powered by your wisdom!

June 15, 20110 found this helpful

Let it warm up. Might need bands tightened. But since it's a 94 might just be age.

Reply Was this helpful? Yes
August 21, 20160 found this helpful

I have the same issue with on a 1994 Lesabre and have done some pretty extensive research on this issue.

This is a very common issue on all 4T60e transmissions, often referred to as "morning sickness". These transmissions are pretty weak and you can't expect them to last more than about 150k miles.

The issue in question is related to a bad seal that doesn't allow the transmission to gain enough pressure at cold temps. Once the transmission has warmed up the seal expands and allows enough pressure to build up.

Ad

Unfortunately, there is no easy / cheap fix for this. Using an additive such as Lucas Oils Stop Slip may buy you some time, it works in 2 ways by thickening your fluid and "swelling" the seals.

The downside is that an older transmission will have brittle seals and it will work for a while (could be a week, could be a year) but will eventually stop working and the seals will be worse than they were originally.

* Do NOT do a transmission flush on older transmissions!

* Only use an additive if absolutely necessary and you know your trans is on its way out!

* Be prepared for an expensive trans rebuild or replacement!

Reply Was this helpful? Yes

Add your voice! Click below to answer. ThriftyFun is powered by your wisdom!

Related Content
In These Guides
Buick LeSabre Transmission Problem
Repairing a Car
Repairing a Car's Transmission
Categories
Consumer Advice Cars Repair AdviceMay 18, 2011
Guides
A mechanic pouring transmission fluid into a funnel.
Removing Transmission Fluid from Clothes
Woman looking at cell phone with confused expression
Troubleshooting Problems With Sprint Cellphone Service
Yahoo Mail
Troubleshooting Problems with Yahoo Mail
Starting a Lawnmower
Lawn Mower Won't Stay Running
More
🎂
Birthday Ideas!
Facebook
Pinterest
YouTube
Contests!
Newsletters
Ask a Question
Share a Post
Categories
Desktop Page | View Mobile

Disclaimer | Privacy Policy | Contact Us

© 1997-2017 by Cumuli, Inc. All Rights Reserved.

Published by .

Generated 2017/09/18 17:18:14 in 531 msecs. ⛅️️
Loading Something Awesome!