msmith66
New Member
- Joined
- August 17, 2009
- Messages
- 3
- Reaction score
- 0
- City, State
- Indianapolis, IN
- Year, Model & Trim Level
- '98 Explorer 4.0 SOHC
Hello all, there seem to be several transmission experts here so I thought I would post my problem to get your thoughts...
98 Explorer XLT, 4wd, 4.0l SOHC, 153k. Last week while my wife was driving, at about 25 miles she got a flashing o/d lamp and the transmission went into limp mode. After a brief cooldown the o/d lamp went out and it drove normally until about 15 miles when the o/d lamp flashed again. She is a very easy driver and got it back home ok. I checked the codes and there were none stored. After cooling I took it for a 5 mile test drive and it worked perfectly. After inspecting the fluid I thought it could use a filter/fluid change. Much research about this problem reveals the separator plate problem so I thought I would watch out for that too after dropping the pan. The fluid was old and needed to be changed but it wasn't burnt.
I dropped the pan looking for broken parts and pieces of gasket but there were none. I looked around pretty closely but didn't take the valve body out. Everything seemed to be perfect inside. After replacing the filter and fluid I took it for a 45 mile test drive at highway speeds on a 92 degree day with no problems at all. The transmission shifts perfectly through all the gears, kickdown works perfectly, and the converter locks up just as it should.
I let my wife drive it to work again today - it is a cool day, under 80, and she got the flashing o/d light after about 8 miles of her trip. I have instructed her that if the lamp is flashing on her way home today to take it directly to autozone and not turn the car off until the codes are read - hoping that there will be one there.
I'm looking for any ideas that some of you might have. I'm thinking that the problem must be wiring or sensor related with an intermittent fault. Any ideas how to proceed with the absence of a fault code?
Thanks again!
98 Explorer XLT, 4wd, 4.0l SOHC, 153k. Last week while my wife was driving, at about 25 miles she got a flashing o/d lamp and the transmission went into limp mode. After a brief cooldown the o/d lamp went out and it drove normally until about 15 miles when the o/d lamp flashed again. She is a very easy driver and got it back home ok. I checked the codes and there were none stored. After cooling I took it for a 5 mile test drive and it worked perfectly. After inspecting the fluid I thought it could use a filter/fluid change. Much research about this problem reveals the separator plate problem so I thought I would watch out for that too after dropping the pan. The fluid was old and needed to be changed but it wasn't burnt.
I dropped the pan looking for broken parts and pieces of gasket but there were none. I looked around pretty closely but didn't take the valve body out. Everything seemed to be perfect inside. After replacing the filter and fluid I took it for a 45 mile test drive at highway speeds on a 92 degree day with no problems at all. The transmission shifts perfectly through all the gears, kickdown works perfectly, and the converter locks up just as it should.
I let my wife drive it to work again today - it is a cool day, under 80, and she got the flashing o/d light after about 8 miles of her trip. I have instructed her that if the lamp is flashing on her way home today to take it directly to autozone and not turn the car off until the codes are read - hoping that there will be one there.
I'm looking for any ideas that some of you might have. I'm thinking that the problem must be wiring or sensor related with an intermittent fault. Any ideas how to proceed with the absence of a fault code?
Thanks again!