Question about 1999 Cadillac Seville

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My 99 cadillac uses lots of antifreeze - 1999 Cadillac Seville

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I've got the exact same problem on my
Seville. It skips on #1 cylinder when first started. I just added BAR'S Leaks Liquid Copper to coolant, as I assume I've got a leaking head gasket. I'll let you know how this works out.

Posted on Sep 11, 2010


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What type of antifreeze should I use in my 1993 cadillac STS 4.6L

Use the type that is compatible with any antifreeze. Will say so on the bottle. Make sure to mix appropriate rain for your area and car.

Nov 14, 2016 | Cadillac Cars & Trucks

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Temp got up to 230 on my 99 cadillac deville is that normal

Make sure your engine is breathing properly, by regularly changing air filters. Flush your cooling system once each year and pressure test. There are cooling lines that cross over the rear of the engine that get corroded and may begin to weep can view these lines by removing the engine cover....if you've had a consistent odor of antifreeze after running,with no drippage evident, this area is probably the my 99...

Mar 14, 2012 | 1999 Cadillac DeVille

1 Answer

1991 Cadillac Fleetwood. The heater was working on passenger side but not that warm. Added antifreeze. Seems to be leaking it. Keep adding. gone thru 2 gallons. How do i get heat.

If you've added two gallons of antifreeze, you need to find out where it's going. Make sure the antifreeze you are adding is diluted with water in a 50/50 solution. Pure antifreeze has little freeze protection and boils quickly. If there is no visible leak, check your oil for coolant contamination. Fill the radiator and leave the radiator cap off. Put the heater controls on hottest setting, but do not turn the heater on. Start the engine and watch the coolant. If the coolant level drops, add more to full. If the coolant is flowing thru the radiator when you first start the engine, the thermostat is stuck open and needs to be replaced. If the water is not flowing, then keep an eye on it and wait for the thermostat to open. Add antifreeze to keep the radiator full. Look for air bubbles or lots of foaming in the coolant. That would indicate a blown head gasket and the reason you are losing antifreeze. If there's no bubbles, and the coolant level stays full, put the radiator cap back on and see if the heater is working better.

Jan 11, 2011 | 1991 Cadillac Fleetwood

2 Answers

What kind of anti freeze do i use 99 cadillac deville

any type of antifreeze will work just fine. When a manufacture recommends a certain "brand" of antifreeze, they are in a marketing agreement with the manufacturer of the antifreeze. None is really any worse or bwetter than another brand. What you should be focusong on, is the ability of the antifreeze to do it's job, and its job is to prevent your engine from over heating or your radiator from freezing up during winter conditions. A correct mixture is half and half, or one part antifreeze to one part water, this mixture is the optimum mix ratio to best perform its correct function.

Dec 03, 2010 | 1999 Cadillac DeVille

1 Answer

What is the approximate cost to have a head gasket replaced?

I've heard up to $4000 on a 1990s or later Cadillac. The transmission might have to be removed.

A used engine can cost $3000.

However, if you are experiencing a seepage problem with antifreeze into a cylinder, for instance, try using a $33 Bar's Leaks solution from your local auto parts store. It may seem expensive for a pour in solution, but I tried it on my 1997 Cadillac Deville Limousine and it worked.

Actually, Cadillac recommends that a sealant for the antifreeze be used anytime it is flushed or a major cooling component, such as a water pump, is replaced.

Jun 23, 2010 | 1993 Cadillac Eldorado

1 Answer

What coolant go in 1995 cadillac deville

I would use any Dex Cool approved coolant, but if you're on a budget, I would use any antifreeze that says that it can mix with any color antifreeze. The warranties are the same on both types generally 5 years or so.

The antifreeze sold at Walmart for car radiators is good (but don't use the pink antifreeze used for RVs for winterizing plumbing)

Use a 50/50 solution of water to antifreeze by volume when topping off yor radiator through the overflow tank.

May 10, 2010 | 1997 Cadillac DeVille

1 Answer

Trying to put antifreeze in my Cadillac sls yr 95

coolant reservoir, should have a cap on it that says engine coolant only, or directly in the radiator. why are you adding antifreeze though, is it low?

Feb 02, 2010 | 1995 Cadillac Seville

1 Answer

Have a 99 cadillac sedan deville. lots of

you need to verify the dome lights are turning off before you walk away,something is draining the battery.check you car out after driving it and make sure radio and any other things all shut off.

Dec 28, 2009 | 1999 Cadillac DeVille

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99 cadillac deville overheating put in new radiator,thermostat,waterpump. it stays cool at idle for a hour running.drivin about 15-30 minutes it overheats. is not using hardly any coolant to speak of.

Jan 05, 2009 | 1999 Cadillac DeVille

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