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1997 Cadillac Deville Engine over-heating on the highway.

Tiny
ALTONMCCUE
  • MEMBER
  • 1997 CADILLAC DEVILLE
  • V8
  • 2WD
  • AUTOMATIC
  • 127,000 MILES
I have installed a new radiator, and water pump on my 1997 Cadillac de'elegance 4.7 v8. It will idle and not get hot, but if I get on the Interstate it over-heats. Any idea what will help?
Saturday, February 9th, 2008 AT 10:06 AM

1 Reply

Tiny
BUZZSAW
  • MECHANIC
  • 1,198 POSTS
Its a 4.6 v8. How hot did you over heat it? Any other leaks? Probally head bolts pulled out of the block, head gaskets, overheating to much will cause the threads for the headboltss to pull out of the block
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Saturday, February 9th, 2008 AT 4:38 PM

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