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Engine swap problems

Tiny
TREASUREGIANT
  • MEMBER
  • 1999 BUICK CENTURY
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 130,000 MILES
I install a 2005 chevrolet impala engine into my 2000 buick century. The problem I am having is the vehicle wont stay running and it gets hot. My question is when I swap the engine should I also change the engine computer to the impala engine or is it ok to continue using the buick century engine computer or is there another problem I should be looking at. Thanks.
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Tuesday, March 29th, 2016 AT 8:39 PM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
As long as it was a 3.1 or 3.8 which was in the car originally, check all your connections you don't need to change computer but all connection need to be hooked up. You may have a coolant sensor problem or fans not going on as well as an air lock in coolant system
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Wednesday, March 30th, 2016 AT 7:22 AM

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