1990 E4OD overdrive slow activating
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1990 E4OD overdrive slow activating
Have a 1990 extended cab with E4OD rebuild 3yrs. ago. Oil has been professionally pumped out yearly and new filter kits installed. Never any dirt, very clean. Recent problem started. In mornings when truck is cold, or if truck sits for a bit, transmission will not shift into overdrive until it travels 3-5 miles. Once it shifts (no hard bangs or noise) everything is fine until the next shut down. Same problem again, until it is ready to shift. Speed is usually around 40-50 mph. All other shifts are fine at any time and at the normal speeds.
Any ideas or same problems? and how did you fix it?
Any ideas or same problems? and how did you fix it?
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Thanks for the response Bluegrass. According to the local mister transmission shop, I have a problem with the seal set controlling pressure on both the reverse and the overdrive clutches. Of course they want to do the 2000.00 dollar tranny job. I agree with you that it is a temp. control, and we will wait and see what warmer days brings.