Jeep Wrangler Forum banner

Auto trans slips in reverse. Help...

3K views 18 replies 6 participants last post by  Kevin 
#1 ·
Ok so I noticed at the end of last winter the auto trans slipped and jerked around in reverse one day when I was backing out of the drive way. That was the last time it happened up until a couple weeks ago. It's done it about 3 or 4 times now. it hanst been as bad as the first time but still slips a bit almost like its not all the way in reverse. I have no clue what is causing it besides the cold. It doesn't seem to do it once the jeep is warmed up or in hotter temperatures. I flushed my auto trans and changed the fluid with atf-4 and filter before last winter. That was about 15,000 miles ago maybe 20. Any suggestions? :confused:
 
#4 ·
Nope no leaks. Hope it's not going to sh.. The bed on me. I don't think it is only happens in the cold.
 
#7 ·
I was actually thinking that it could be my check valve. When I start my jeep it makes a growling sound when it cold only. But if I start it in N it doesn't make a sounds like it could be the check valve.
 
#14 ·
My 2001 Jeep Sahara 4.0 with auto has been making that noise for a few seconds for several years now after starting in temperatures below freezing. As soon as I shift out of Park the noise will quit but after idling for a minute or two in any place except Park the noise is gone when I go back to Park. I've tried to find out why the growling sound for some time now but have gotten no definite answers.
 
#10 ·
When my TJ hasn't been driven in a while, it sometimes takes 5-10 seconds to start moving back out of garage after shifting into Reverse. Since I know my ATF level is where it should be, I am pretty convinced it is only the check valve in the hard coolant line that is probably letting ATF drain past it. Maybe that is your problem too.
 
#11 ·
Ok yeah I was thinking the same thing so ill check into that when te weather warms up and it's not raining or snowing. I take it that the check valve is part of the line and I will have to replace the whole line right?
 
#16 ·
on your transmission lines that run into the bottom of your radiator their is alittle valve on the line itself. i believe its the right hose on the drivers side. you could either replace the valve or cut the section with the valve out and replace it with transmission line and see if that helps your problem.
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top