E40D Hard shifting
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Joined: Apr 2024
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E40D Hard shifting
Alright, well the struggle continues. After solving several issue with my truck, my hard shifting issue has returned.
A little back story here;
91 150 5.0L, E40D transmission ~126000 miles. Had issues with stalling when reversing once hot, and trouble restarting.
After dropping the transmission pan, I was happy to see that my reversing issues were caused by a trans filter that had dropped out of it’s seat. Replaced with a new Motocraft unit and added a clip.
The trans fluid was very clean, and there was very little debris in the bottom of the pan. I reused the same fluid.
Truck now has no issues stalling, and an intermittent issue I was having where the truck would hard shift from 1st to 2nd and sometimes 2nd to third seemed to be resolved!
Hard starting was caused by a weak battery, and very tired battery cables.
After about 200km of trouble free driving, the truck is back to intermittently shifting hard from 1st to 2nd and sometimes 2nd to 3rd gear. It only does this when driving normally, if you are on the gas accelerating hard, it will never hard shift. When I say hard shift, it’s almost like the truck has a shift kit the way it hits.
TPS tested good two years ago when I was trouble shooting other issues with he truck, MAP sensor was new two years ago, VSS on the trans was changed a year ago due to fluttering speedo, computer was changed with a reman unit 2 years ago due to capacitors that had failed in the original computer.
Trans fluid is at the correct level when checked hot.
Other than the above, the only thing that I noticed was that if you place the column shifter in 2nd gear, the truck does not start in 1st and shift to 2nd gear. It seems to start in 2nd gear all the time. What could be causing this?
Thanks, hopefully someone here can help with some input! I think my next step will be to drop the pan and confirm the filter is in fact still seated correctly, because after the filter change everything was perfect!
A little back story here;
91 150 5.0L, E40D transmission ~126000 miles. Had issues with stalling when reversing once hot, and trouble restarting.
After dropping the transmission pan, I was happy to see that my reversing issues were caused by a trans filter that had dropped out of it’s seat. Replaced with a new Motocraft unit and added a clip.
The trans fluid was very clean, and there was very little debris in the bottom of the pan. I reused the same fluid.
Truck now has no issues stalling, and an intermittent issue I was having where the truck would hard shift from 1st to 2nd and sometimes 2nd to third seemed to be resolved!
Hard starting was caused by a weak battery, and very tired battery cables.
After about 200km of trouble free driving, the truck is back to intermittently shifting hard from 1st to 2nd and sometimes 2nd to 3rd gear. It only does this when driving normally, if you are on the gas accelerating hard, it will never hard shift. When I say hard shift, it’s almost like the truck has a shift kit the way it hits.
TPS tested good two years ago when I was trouble shooting other issues with he truck, MAP sensor was new two years ago, VSS on the trans was changed a year ago due to fluttering speedo, computer was changed with a reman unit 2 years ago due to capacitors that had failed in the original computer.
Trans fluid is at the correct level when checked hot.
Other than the above, the only thing that I noticed was that if you place the column shifter in 2nd gear, the truck does not start in 1st and shift to 2nd gear. It seems to start in 2nd gear all the time. What could be causing this?
Thanks, hopefully someone here can help with some input! I think my next step will be to drop the pan and confirm the filter is in fact still seated correctly, because after the filter change everything was perfect!