What is wrong with my 1990 Jeep Cherokee Laredo?
About 2 years ago my Cherokee began shifting funny. I checked my tranny fluid and found there to be none showing on the dipstick, so I added a few quarts. A day or so later I was on my way somewhere and as I was leaving a town, trying to pick up speed, the Jeep started losing speed. I pulled it over and turned it off, then tried restarting it and pulling away. I couldn't move forward or reverse, it was like there was no transmission there. I checked the fluid again and it showed none. In these few days I had never noticed any puddles or spots under my Jeep so I haven't a clue where the fluid was going. I had to have my dad pull the beast to my work where it sat until I had time to haul it home. My dad has looked into the problem and has come to the conclusion that the neutral safety switch is the problem. He said it is impossible to take out forward and reverse gears together, that when a tranny goes the gear you are in is what goes. Someone please shed some light on the problem!!
Maintenance & Repairs - 6 Answers
Random Answers, Critics, Comments, Opinions :
1 :
internal leak perhaps maybe the tranny is seized from no fluid
2 :
the neutral safety switch is only for starting the car ,to make sure that it is in either park or neurtral. so it doesn't start in gear, it sound like when you ran low on fluid that you burned out the pump since you now have no gears.
3 :
that switch only tells them computer that the car is in neutral or park so it will allow it to start i have seen alot of them leak but if is leaking fluid you need to fix the leak first .. the transmission works on hydrolic pressure and if there is no fluid in the trans it will not work
4 :
Neutral safety switch is electrical and does not prevent the truck from moving--it keeps you from starting unless the shifter is in Park or Neutral. Sounds like you need more fluid added---make sure truck is warmed up and sitting level....add fluid as necessary to bring it up to the full mark on the dipstick. Let it run for a while and recheck the level. You must have a leak somewhere if it's getting low periodically....check the underside of the vehicle for any evidence of trans fluid residue on the body or frame. Fluid leaks can sometimes occur where the fluid is blown backwards from driving and will wind up caking the body instead of dripping on the ground. Low fluid level will cause a loss of pressure in the valve body of the trans and can cause multiple gears (or bands) to not operate properly. Bands for the different gears need pressure to apply them and a friction band going bad is not always for the gear you are in when driving. Some misconceptions here. May want to have a trans shop or repair shop pull the trans pan and inspect it for how much friction material or metal flakes are in the bottom of it which can indicate how much life the trans has left.
5 :
The trucks have great transmissions in them, Jeep use a trans mission that was produced for the Toyota trucks...(automatic trans)...anyway there are a couple things you can check for....there a two lines that run from your trans to your radiator to cool you trans fluid...part of the line it metal and then there is a short foot or two gap that is rubber...alot of times the lines will dry rot so check where they go in to the radiator , some times the fluid will leak down the lines and blow off as you drive down the road , you can also look at the bottom of the radiator and see if fluid is pooling up there...check where the lines go into the trans, there is also a seal at the back of the trans, it fits into the tail piece where the drive shaft slides in (this is a cheap part easy to fix) ...look at the bottom of the jeep alot of trans leaks don't end up on the ground because the fluid sits in the pan when the car is not running or in gear...when the car is moving it blow it away and all over the bottom of the car...so look and see if theres alot of road grime and if it is oily in Constancy ...hope i helped some
6 :
When you checked it the first and all times, was the engine running? Sounds like the to much fluid, foamed up "Aerated", locked up the pump and no more transmission. ALSO; Check cooling system to see if the transmission cooler line in the radiator is broken, Transmission Fluid in the Radiator.
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