5 speed automatic, 5.9 ci. Truck sometimes does not shift from first to second without me having to flutter the gas pedal. Sometimes it shifts but at a high RPM (3000 or so). Sometimes the truck shifts just fine but on a steep grade, drops from second to first abruptly (Entrance ramps and hills). The truck had a trans rebuild 30,000 miles ago due to a bad leak. What are we looking at here?
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CHECK OIL LEVEL, IF IT'S LOW ADD SOME AND SEE IF THAT CURES THE PROBLEM " YOU HAVE TO MEASURE IT WITH THE TRUCK AT IDLE AND ON PARK GEAR, SHIFT TO NEUTRAL AND TO PARK AGAIN "
1. check fluid level ---- in neutral ,not parkand at operating temp.
2.check throttle pressure cable for binding and adjustment
3.Replace Governor Pressure Sensor and a Governor Pressure Control Solenoid
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Solution #3
posted on Aug 12, 2008
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Rank: Apprentice
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Not sure what year is your truck but try checking the speed sensor which is located in the rear differential. Sounds like the same problem I had which turned out to be the speed sensor
when the engine is cold the speedo works but when the engine is starting to get hot then the speedo...
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when the engine is cold the speedo works but when the engine is starting to get hot then the speedo acts all funny then it decides to not work everything else will work except the speedo
my transmission seems to be hung in low gear and wont change and then sometimes it will shift good...
(More)
my transmission seems to be hung in low gear and wont change and then sometimes it will shift good what could the problem be and have changed the filter and fluid and helps it for about a day then back to the way it was before