overheating

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AUNTJOJO27
  • MEMBER
  • 1 POST
I have a 1993 Pontiac Bonneville which is a 3.6L V6 (i believe) I live in Boston and my nephew has this car in Maryland for college, so I cannot be certain of engine size. I have two questions 1. The car runs hot when in stop and go traffic but as soon as it hits the highway with uninteruppted 50+ mph is cools right down what could the problem be - no fluids leaking. 2. Is there a way to find a good, reliable and fair mechanic in Maryland from the internet.
Oct 21, 2007 at 4:21 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Sounds like thermostat try this first-if not see below

Coolant temperature sensor,Thermostat,Pressure test the Rad. cap,Clogged radiator,Fan clutch,Radiator electrical fan,collaspe hoses,water pump.
Oct 21, 2007 at 8:39 AM
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