95 Neon automatic no revese when cold.
#1
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140,000 miles, SOHC, transmission fluid looks & smels ok. It acts like it is in neutral until after it has warmed up. Once it has warmed up enough reverse will work. I am thinking maybe a seal or o-ring etc. has shrunk causing an internal fluid leak. I have had good luck in the past with Trans X sealing internal and external leaks caused by shrunken seals etc.
Does anyone know what migh tbe causing this problem?
Does anyone know what migh tbe causing this problem?
Last edited by terry s; 02-12-2011 at 10:57 AM.
#2
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According the the transmission apply charts found in the shop manual, it's either the forward clutch (high/rev) or the Low/Rev ban servo. I hear a lot of things about the L/R servo failing. There's a couple ways to test this. Since the problem only occurs cold, park the car where you don't have to back up to go forward. Put trans in 1st gear and accelerate to say 20mph then let off the gas. If you don't have engine braking, then the L/R servo is most likely the culpret. If that's ok then next time you can take off cold, put trans in drive and accelerate normally and watch for a 2-3 shift. If you get a flair then the problem lies in the Forward clutch seals.
#3
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According the the transmission apply charts found in the shop manual, it's either the forward clutch (high/rev) or the Low/Rev ban servo. I hear a lot of things about the L/R servo failing. There's a couple ways to test this. Since the problem only occurs cold, park the car where you don't have to back up to go forward. Put trans in 1st gear and accelerate to say 20mph then let off the gas. If you don't have engine braking, then the L/R servo is most likely the culpret. If that's ok then next time you can take off cold, put trans in drive and accelerate normally and watch for a 2-3 shift. If you get a flair then the problem lies in the Forward clutch seals.
I will be gone all next week so can't work on it for a while but will send the owner this and have them try your suggestions.
Is the L/R servo or the forward clutch seals easily fixable by taking the transmission pan off?
#4