2000 Isuzu Trooper not going into overdrive

2000 ISUZU TROOPER
116,592 MILES • 6 CYL • 2WD • AUTOMATIC
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SCOTT34
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  • 1 POST
We were in a flood last summer and while leaving our home we had to drive through a few feet of tidewater. A few months ago, the truck stopped going into overdrive. At around 70 mph the check trans light comes on. I've been changing the transmission fluid as much as I can at a time, draining the trans. pan and refilling with trans fluid, (about 2qts at a time.) This seems to help smooth the shifting between the 1st few gears, but it still won't go into overdrive.
Jan 12, 2008 at 2:23 PM
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MERLIN2021
  • ✓ASE Certified Mechanic
  • 17,250 POSTS
  • ASE Certified Mechanic
Try checking the electrical connectors at the tranny! If you drove thru salt water, it is very corrosive to electronics!
Jan 12, 2008 at 4:15 PM
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