1999 Mitsubishi Eclipse heating

1999 MITSUBISHI ECLIPSE
180,000 MILES • 4 CYL • 2WD • AUTOMATIC
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BADGES13
  • MEMBER
  • 1 POST
i was wondering if anyone knows what causes a eclipse to heat up when going up hill but after it levels up it cools back down to normal
Jul 10, 2010 at 12:43 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Check and test the thermostat and also the exhaust system for restriction-could be the catalytic converter partially clogged-up
Jul 10, 2010 at 1:11 PM
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