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Overheating only while driving why

Tiny
SEXYINPINKANDBLACK
  • MEMBER
  • 1998 NISSAN MAXIMA
  • 179,000 MILES
Changed radiator cap and. Flushed radiator and coolant/anti freeze and only overheated after been driving about 10 miles
Thursday, March 15th, 2012 AT 5:40 PM

4 Replies

Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Is thermostat good? CHeck out this guide

https://www.2carpros.com/articles/engine-overheating-or-running-hot
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Thursday, March 15th, 2012 AT 6:21 PM
Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
So if it just sits and idles it never gets hot? Are radiator fins blocked/dirty?
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Thursday, March 15th, 2012 AT 6:23 PM
Tiny
SEXYINPINKANDBLACK
  • MEMBER
  • 1 POST
I have replaced the thermostat and took the radiotor to a radiator shop where it was pressurized because it was partially clogged. I have replaced the radiator cap as well; but it still gets hot. I can drive for about 15-20 mins before it starts getting hot; than the temp goes down for a few mins than the temp starts rising again. But as soon as I stop and leave running the temp goes down. For some reason it only rises while driving and decreases while sitting in drive/idle. Not sure what that can be; any suggestions?
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Thursday, March 15th, 2012 AT 6:33 PM
Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Have you pressure tested system? If you operate heater will that stop overhaeting?
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Thursday, March 15th, 2012 AT 7:27 PM

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