Over heating

1997 CADILLAC ELDORADO
151,000 MILES • V8 • FWD • AUTOMATIC
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RDRAWZ
  • MEMBER
  • 1 POST
1997 Cadillac only overheats when going up hill, long hills like over the Rockies, why? It never overheats around town, basically flat surfaces.
Dec 14, 2010 at 8:47 AM
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FACTORYJACK
  • ✓Experienced Mechanic
  • 4,159 POSTS
Are the cooling fans on when it overheats, or do they come on with A/C request? If the cooling fans are operational, I would recommend a block test for combustion gases in the cooling system.
Dec 14, 2010 at 9:05 PM
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