Question about 1999 Cadillac DeVille

4 Answers

1998 cadillac devill

Car overheats

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  • booze55 Apr 26, 2009

    I have had 2 1998 devilles they both used a lot of oil. why is that. 4.6 northstar

  • paul erickson
    paul erickson May 11, 2010

    if you would like us to help you with your problem we need much more info

    like when it overheats

    and that your loosing or not loosing antifreeze.

    how long it takes to overheat?

    do it over heat to the point its blowing out antifreeze?

    please give detailed information for you to get any information.

    most of us here at Fixya will just bypass your question because of lack of effort on your side.

    when asking questions always tell us the size of engine amout of miles on the car and any thing you think might pertain to to the problem.

    later paul

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First check your water pump belt, it is on the left rear of the engine, remember the engine sits sideways. It is to the left of the throttle boy. It has one small belt with a black metal cover over it. With the engine running, make sure the belt is spinning, driving the water pump you can't see. If it is, you may have blown head gaskets.

Posted on Oct 02, 2009

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To make a very long story short. Blown Head-Gasket plus or Head-Bolts have been pulled. If you do not have excessive money to put into the car, HURRY up and sell it QUICK!

Posted on Aug 12, 2009

  • txboifrozt Aug 13, 2009

    Quickest answer that will most likely be the truth.
    Blown head-gasket, pulled bolts out of block. Extremely costly to fix and most mechanics will not attempt to fix a northstar engine. There all notorious for this, look it up. Northstar engine overheats.... You will find it everywhere.... Best thing to do is either find someone dumb enough to buy it, or replace the engine, which a 4.9 would be better....

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OK LETS START FOR THE CHEAP HAVE YOU TRIED TO CHANGE THE THERMOSTAT OR THE TEMPETURE SENSOR THATS THE ONE CONTROL THE RADIATOR FANS

Posted on Jul 29, 2009

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Your cylinder head bolts are the most likely cause they pull out of the block, it is a GM design flaw.

Posted on Jul 17, 2009

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