1991 Lincoln town car overheates when accelerating over 50 mph but cools down when u slow down Car overheated on highway was going uphill and. When shifted to overdrive it was a hard shift then motor overheated shut car off replaced thermostat and started driving noticed it got hotter than normal pulled over slowed down and it all of sudden dropped to normal temp but when accelerating started running higher than normal

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22 Nov, 2017

  • 71%
    Solved this issue
  • 91min
    Time to fix
  • 71%
    Recommend to DIY
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Sounds like possibly water pump. Sometimes the fins break inside and doesn't circulate enough water. I would start there
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