2000 Chrysler Neon failure towards auto transmission

Tiny
NANKONDE
  • MEMBER
  • 2000 CHRYSLER NEON
  • 2.0L
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
After the transmission fluid was changed as it was mixing with water. The car started misbehaving. It started speeding even when you don't expect it to. Then afterwards it started refusing to engage to higher gears. It will go to one sometimes two that's the furthest it is going. What could be the cause of this behaviour.
Wednesday, November 27th, 2013 AT 7:25 AM

9 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
How much coolant got into the transmission? As far as the engine, do the RPM's increase when you are not touching the gas pedal?
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Wednesday, November 27th, 2013 AT 7:31 AM
Tiny
NANKONDE
  • MEMBER
  • 9 POSTS
The RPMs are normal only the engaging is a problem.
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Wednesday, November 27th, 2013 AT 7:42 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
If there was a lot of coolant mixed with the trans fluid, there is most likely internal damage to the transmission. Also, has the check engine light come on?
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Wednesday, November 27th, 2013 AT 7:44 AM
Tiny
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  • MEMBER
  • 9 POSTS
No there is no icon of that nature showing or any other
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Wednesday, November 27th, 2013 AT 8:04 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Then it must be all time 4wd. If it continues, I would have the steering components checked. However, it is the nature of 4wd vehicles to sometimes bind when they are turning when in 4wd.
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Wednesday, November 27th, 2013 AT 8:11 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
I don't know why, but I submitted one post and it ended up on this page. Sorry about that. Just ignore the last post. Since the light isn't on, I am going to recommend it is looked at by a trans tech. I am concerned that something may have been damaged by the coolant.
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Wednesday, November 27th, 2013 AT 8:13 AM
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
HOW DID COOLANT GET IN THERE.

. TRANSMISSION COOLER LINES INSIDE THE RADIATOR GO BAD?

THE MEDIC
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Wednesday, November 27th, 2013 AT 8:22 AM
Tiny
NANKONDE
  • MEMBER
  • 9 POSTS
The coolant entered due to a bad radiator that was also replaced
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Wednesday, November 27th, 2013 AT 8:52 AM
Tiny
MAXIMILIAM
  • ADMIN
  • 436 POSTS
Hi I just want to add something. The car is now changing but when you come to a stop like traffic lights then if starts to vibrate failing to change down the gears. What can be causing this

Nankonde
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Thursday, November 28th, 2013 AT 8:10 AM

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