repetitive down shifting on highway (crazy story)
5

Asked by GauthierRay Oct 17, 2014 at 07:26 PM about the 1998 Dodge RAM 1500 Laramie SLT LB RWD

Question type: Maintenance & Repair

When I bought my truck I noticed a shifting problem when I went on the highway. Truck
would constantly be shifting gears over 50 mph, down shifting into passing gear and
back up to overdrive. Here is where things got weird. I over heated one day while on
the rode. I diagnosed it as a frozen thermostat. tools in hand I remove the thermostat
on the spot with the help of red gasket sealer and a gallon of spring water and I'm off.
For the following week, intending to replace the thermostat I realize my transmission
problem has completely disappeared. Transmission is shifting like a dream, Really. I
live in New England and it is October so its getting cold. I put a thermostat back in to
get heat, because without it the temperature needle does budge.Got heat and shifting
problem is back just like before. Coincidence,? I think not. I'm going to take the
thermostat out Sunday 10/19/14 to see what happens. If anyone knows what one thing
has to do with the other to cause this PLEASE Please let me know. Thanks for reading.

1 Answer
144,795

T_S_T answered 10 years ago

The radiator,need,s rodding out or replacing,the tranny coollant line,s run into it to keep,the tranny cool,replace the radiator or have it fixed,should fix the shifting issue.

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