Question about 2000 Cadillac DeVille

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We have a 2000 deville that started leaking coolant. we replaced the thermastat and it continues to leak coolant. it wont overheat as long as we keep the coolant in it. it leaks alot more when the car is off.

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Check condition of radiator,radiator & heater hoses,look for spots wet w/ coolant.look more or less straight up above where coolant puddles on ground.engine block is equipped w/'freeze plugs' that sometimes corrode & leak.washing suspected area of leak with an engine degreaser product may aid in locating source of leak.

Posted on Sep 28, 2009

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I have a 1998 Cadillac DeVille D'elegance and it has a coolant leak the temperature rises but doesn't overheat I just got the car a few days ago and know nothing about it please help


well section off the car on flat ground let idle until leak leaves signs on the ground in front on the wheels hoses, radiator, on right side of car near rear heater hoses waterpump on drivers side hoses engine gaskets.

May 26, 2014 | 1998 Cadillac DeVille

1 Answer

NORTHSTAR ENGINE OVERHEATS


could be a couple of things1 you have a leak 2 the radiator is blocked run some radiator flush for about 1/2 hr drain then refill with water 3. is the fan working 4 you could have blown the head gasket open the radiator cap see if the water bubbles out 5 the thermastat could be shot.

Feb 27, 2013 | 1998 Cadillac DeVille

2 Answers

Leaking engine coolant. the coolant eventually all leaks out and car over heats.


Does the leak show up on the ground when you are parked with the engine running or stopped.
Determine where it's leaking from. Hose? near fire wall, near radiator. Water pump will leak when it's worn.
Can you smell it when you're inside the car? heater core.

Jan 03, 2011 | 2000 Jeep Cherokee

1 Answer

Slowly overheats after about 8mi.radiator cool at that time ,water pump running(good belt,not leaking) hoses hot also keeps neediding coolant top off but no leaking under car.no water in oil or evident...


That's about the right amount of time for a thermostat to start opening. If the rad is cold and the engine is overheating then get the thermostat changed. It's likely sticking closed. This situation would also cause your coolant to boil in the head and evaporate the water out of the mixture. That's why you need to keep topping up. Hope this helps.

Sep 17, 2010 | 1998 Cadillac DeVille

1 Answer

Kia sportage 2000 engin chech signal come but not go hard start


If the vehicle was running hot it will continue to overheat until you locate a coolant leak and repair or replace the leaking part. It is critical you do not wait to repair this. You must first add water to your cooling system before you can troubleshoot the problem. Add the water while the vehicle is cooled down. If the vehicle is having trouble starting it is possible that you have allowed the engine to run hot too long. You could also have a head gasket leak from the motor. This could let coolant leak into the oil and you can check your oil and find a milky white substance that is a mix of coolant and oil. If that is the case you need to take the vehicle to a motor repair shop. To troubleshoot leaking cooling system get or borrow a cooling system leak check kit. It screws on in place of the radiator cap, you pump it up and use a flourescent light to then look in the engine compartment under the hood for a dripping green coolant leak. Good luck.

Apr 10, 2010 | 2000 Kia Sportage

2 Answers

How to fix a leak to the auto trans oil cooling line its leaking wher the line and the radiator is.it is not a major leak but a small and my car tends to over heat is that the problem


I doubt this is the overheat problem especially if you've been keeping the oil level up in the trans. If the steel line is leaking you can cut it and slide a few inch long piece of hose over the line in between the cut and use two small band clamps on either side of the hose.

The overheat problem could be due to a headgasket(which this car is famous for) or thermostat or maybe the radiator itself is cracked and the coolant as well as trans fluid are leaking out.

Feb 26, 2010 | 1997 Cadillac DeVille

1 Answer

I have a 2000 deville and it is leaking coolant and overheating. there is, what looks like rust all over the engine and in the coolant. i can't afford to take it to a mechanic. can offer some advice?


YES YOU WILL NED TO FLUSH SYSTEM AND FIND THE LEAK YOU CAN GO TO YOUR LOCAL AUTO STORE AND BUY FLUSH KIT AND FOLLOW DRECTION BUT YOU NEED TO FIND LEAK FIRST YOU CAN RENT THE TOOL TO HOOK TO RADATOR TO PRESURE RIZE SYSTEM FIND LEAK SOME TIME YOU CAN JUST PUT WATER IN RAD TO FIND LEAK THE PUT THE RIGHT AMOUNT OF COOLANT AND I WOULD REPLACE THERMOSTAT AT SAME TIME.

Aug 12, 2009 | 2000 Cadillac DeVille

1 Answer

Overheating problems


Yes it needs a thermostat. What size engine?

Jun 07, 2009 | 1996 Chevrolet Cavalier

1 Answer

Car overheating, Cadillac Deville


maybe it is cloged up. also check the fans. and the thermastat. and temp sensor.

Nov 21, 2008 | 2002 Cadillac Deville

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