1999 Dodge Truck downshifts

92,500 MILES • V8 • 2WD • AUTOMATIC
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RUSSEL NEWTON
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  • 2 POSTS
my truck started downshifting at about 50 mph,by its self and then won't shift again til about 73mph,but sometimes not even then.
Jun 30, 2008 at 3:20 AM
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DOCFIXIT
  • ✓Experienced Mechanic
  • 18,828 POSTS
Sounds like lock up torque convertor switch acting up or fliud leaking to covertor. Try driving truck in drive out of overdrive. Let me know
Jun 30, 2008 at 3:38 AM
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RUSSEL NEWTON
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  • 2 POSTS
it does not have a overdrive location it's just D 2 1.
Jul 1, 2008 at 9:20 AM
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DOCFIXIT
  • ✓Experienced Mechanic
  • 18,828 POSTS
No overdrive? Well that's a new one on me. In any event there is nothing external that you could do.
Some problem with the valve body / shift solenoids for this to occur. Need to take it to a tranny shop for a dianosis pressurs test ect.
Good luck
Jul 1, 2008 at 9:48 AM
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