Question about 1998 Cadillac DeVille

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How hard it it to chang head gaskets on a 98 cadillac deville with the 4.6

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It is very hard, flag time to remove and replace head gasket's is 18.9 hrs, if you never done this kind of work, might be best to pay some one to do it for you, at least this way you also get a warranty.

Posted on Sep 09, 2010


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SOURCE: 1993 DeVille Head Gasket

Yes they do..Some times you'll get lucky and they won't and some times they will..Have a great night..

Posted on Apr 03, 2009

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SOURCE: how to put a 98 cadillac deville in time

Take a finger and place it over the #1 cylinder plughole, after the heads are back on of course, and have some one else turn the key in very quick spurts util you feel the commpression of "that" cylinder against your finger. Do this very slowly and once you feel the pressure you shoul also be able to see the timing mark on the crankshaft very near the timing mark TDC top dead center coming into alignment.At this point just turn the crankshaft mounting bolt with a 1/2 inch drive ratchet wrench and the appropriate socket until it is on TDC. Then insert your distributor which will turn clockwise. So you have to account for this movement until the rotor points directly at the number 1 cylinder plug wire insert. It is usually marked on the distributor cap on a GM product. Make a small indicator on the ridge of the distributor housing to match the mark.Using a large black marker works well. That's about it. Thanks, Dana

Posted on Sep 10, 2009

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98 caddilac deville running hot

The water pump is in the back of the motor on this one, it requires a special socket to remove and replace. If you have been scratching your head on this one, Cadillac had head gasket bolt issues, the bolts stretch and the gasket leaks internally.

Nov 01, 2011 | 1998 Cadillac DeVille

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My 98 deville is overheating after 15 mins of driving at 30 mph on the streets and white smoke comes from the exhaust. I was told that the head gasket could be blown is this true or could it be something...

No, that person is correct and hopefully it's just a gasket. Usually a Norstar Engine overheated isn't too healthy and you may need a cylinder head or two. It's nearly a 20 hour job when it's all done (just 4 gaskets). If you like the car perhaps a used engine may be cheaper.

Aug 05, 2011 | 1998 Cadillac DeVille

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98 deville one day the temp is fine an be fine all day the all asudden it will over heat

if its got over 1oo,ooo miles you probably got a blown head gasket. not an easy one to fix in your front yard, sorry

the big brain

Jan 14, 2011 | 1998 Cadillac DeVille

2 Answers


you dont have to pull the whole motor out of car if thats what your asking but theres alot of work involved with changeing head gasket

Dec 17, 2010 | 1998 Cadillac DeVille

1 Answer

Check coolant temp

I just purchased a 98 Cadillac Deville which had sat at the dealers for a few months, when I drove it the check coolant light came on, I checked with the dealer and he added coolant and it went off,I'm going to keep an eye on it but as the devilles seem to have head gasket problems and that might be the first sign of a bigger issue. Hope this helps and remember to add ONLY Dexcool antifreeze as it is what is required and most auto parts stores carry this

Oct 26, 2010 | 1998 Cadillac DeVille

2 Answers

Having problem starting and engine has no power then goes

Have you checked anything in that car yet? if so telling us would let us be able to help you better.

Jul 12, 2010 | 1997 Cadillac DeVille

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1993 DeVille Head Gasket

Yes they do..Some times you'll get lucky and they won't and some times they will..Have a great night..

Apr 03, 2009 | 1993 Cadillac DeVille

2 Answers

1999 Cadillac Deville 4.6 northstar blown hesd gasket

If your just replacing the head gasket, you don't have to remove the motor. Just remove the top part of the engine.

Mar 24, 2009 | 1999 Cadillac DeVille

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