Transmission

RINGE

MEMBER
FORD F-350

We have a 1997 Ford F 350 and OD light was blinking on and off. Just everonce in awhile it would shift hard. We took it in for the tork converter but they said it was only the sensor but my husband is freaked out because they changed the transmission oil and filter. Now he thinks the transmission will go out. He has never had it changed but they said that the oil look clean with not metal fragments. Will it hurt that it was changed?

Thursday, June 7th, 2007 AT 9:19 AM

1 Reply

MICHAEL081278

MEMBER
11 POSTS

The only time changing the transmission fluid will cause a problem, is if the fluid is burnt and thick. The seals are usually worn and when you put new thin fluid back in, it will leak past the seals and you will lose all engagement of your transmission.

Your problem sounds like an electrical problem, usually the Solenoid pack has a short in one of the solenoids and will set a code in the computer. The computer will automatically default to limp mode, which disables lock up and increases line pressure. Resulting in the hard shift you feel.

If they fixed your problem and changed your fluid and you drove it out of there parking lot without any problems, chances are you shouldn't see anything else til your up around the 200K mark. That's when the defects in the E40D start giving problems.
Hope this helps!

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Thursday, June 7th, 2007 AT 12:22 PM