Question about 1988 Jeep Cherokee
I changed the fluid and now if I drive slow it will go into high gear, but it stills slips into neutral instead of high gear
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Posted on Jan 02, 2017
First of all make sure you are checking the fluid right. Some people do not know that in order to check transmission fluid the engine needs to be running and the temperature needs to be sort of warm althought you should be able to get a good Idea just by the engine running. In this instance you might have a governer valve that isn't properly working to shift the engine when hydraulic pressure reaches a certain PSI. I would suggest having it flushed and put in new fluid and filter. If this doesn't work the problem is more serious and might need some professional assistance.
Posted on Oct 14, 2008
Remove the transmission pan. Check fluid for burnt smell, water contamination, (on 2pc fill tubes water can get in) debris (either clutch material or metal) Change filter and refill. If problem gets substantially better, change oil again in about a week. If problem remains the same and there was a lot of debris or oil really smelled bad, you likely have burned clutches and need a rebuild. Compare smell and colour with another vehicle... trans oil never smells really "good".
Posted on Nov 07, 2008
you might already know but when shifting into 4wd you can shift into 4hi while driving as long as the tires,(all four) are travelling the same speed. you can't shift into 4wd if you are spinning. 4 low you have to completely stop. When you are in 4 low as you know the power of vehicle is greatly increased due to gear reduction. so if you are seeing slipping symptoms, you might want to change transmission filter. It might not be much help to you but it might prevent problems down the road. also when changing fluid be sure to put mopar transmission fluid for replacement on jeep. like gm calls for dexron. the transfer case on dodge and jeeps also takes transmission fluid. I had to replace a t-case on my friends dakota that was making a grinding noise and it turns out a seal had leaked some fluid out and burnt up some bearings. pretty expensive. they are chain driven. hope I didnt get too carried away, because I am not a transmission expert but I just wanted to share what I did know with you.
Posted on Jan 12, 2009
As I said, trans fluid keeps the internal components "alive"... Low fluid level can cause burning of internal clutches, premature hardening of seals (essential to proper transmission of fluid pressure) as well as lubrication of necessary gear components such as planetary gear set (which can cause whine etc. which you now have) All of these components rely upon a constant flow of fluid for both cooling and lubrication. Depending upon how low and how long these parts had interrupted fluid flow, directly influences how much damage was done. I take no joy in telling you that you may have damaged your unit, I'd be far happier if I could give you a quick, inexpensive fix. But based upon what you have said, If I was working hands-on with this problem, I would make the recommendation I've already made. There are pressure tests etc that can be done at a transmission shop to verify to some degree of certainty what is going on within your unit. Hopefully they may find something other than what I've said. At this point though, it is wise to have it checked out by a professional, before you become stranded at a time when you can least afford to be.
Posted on Apr 13, 2009
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