Question about 1997 Cadillac Eldorado

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Runs towards hot side when driving 15 miles or more, or sitting at traffic lights, no visible leaks, already changes thermostat and hoses, does anybody know what the problem could be?

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I have the same problem with my 95 eldorado and i dont know how to fix it i done changed out mt thermostat and still it overheats

Posted on Feb 26, 2013

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The electic fan or its relay is bad

Posted on Sep 02, 2010

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My temp gauge goes to H after driving 15 mins, my radiator & hoses are not leaking, theRes no steam , water pump works and thermostat was already removed. Anyone have idea of what it could be?


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Have bmw 320i 2001 only 55570 miles. even driving after 10 miles engine get hot. no problems with driving , no warning light but it stays hot even after2 hours. please need advice. car was checked


This bmw is overheating , even after 2hrs, the engine will still be hot after it verheats. the basic thing to do first is to allow the engine to cool down 5-6 hours or even overnight.then check to see if the cooling system is full of coolant. this problem may be caused if lets say the coolant level is low, this can happen if theres a leak in the system. if low fill system and then have it checked for leaks.another problem if the system is not low then you may have a bad thermostat, a bad thermostat will not allow the coolant to flow inturn making engine overheat, the the last common problem could be a bad fan, start in the order i listed as far as the thermostat watch the gauge and feel the lower hose, if the gauge goes to hot and the lowe hose is luke warm or cold and the top radiator hose is hot then the thermostat is bad. the last test is for the fan, if the top hose and the lower hoses are hot and the car is starting to overheat then it may be the fan, see if the fan is spinning, this car may have an electric fan or belt driven fan, if its electric then see if its running, if the fan is not running then testing need to be done to see why, the fuse and the relay will need to be tested and then the fan itself. if the fan is belt driven then you will see if the belt is on the fan pulley and then check the fan clutch, the way the fan clutch works is the fan will run at a slowwer speed than the engine and then when the heat from the radiator gets hot and blows on the front of the clutch this causes the fan clutch to lock up and makes the fan spin faster. check to see if this is happening but if this were to be the problem or if the fan was aproblem the car would not overheat as you are driving rather it would overheat at a stop or in slow traffic because the air flow from the driving would act like a fan as the air flows through the radiator from driving this would cool the engine if it was the fan, but if the car overheats even while moving then it would not be a fan problem but rather the thermostat or low coolant. there is another problem but i would start with these. hope this is helpful.

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1 Answer

Car overheated and lost all power. how do I get it to start?


ENGINE NOT GOING TO START IF GET TOO HOT FIRST THING I WOULD REPLACE THERMOSTAT AND RADIATOR PRESSURE CAP THEN ADD COOLANT UNTIL COOLANT LEVEL CORRECT THATS WHEN THERMOSTAT OPEN UP AND TOP HOSE HOT.CHECK FOR LEAKING RADIATOR HOSES CHECK TOP RADIATOR HOSE CHECK BOTTOM RADIATOR HOSE.CHECK FOR LEAKS AROUND THE RADIATOR LOOK DOWN BELOW COOLANTS FANS CHECK FOR LEAKS AT RADIATOR CORES OR LEAKS AT THE RADIATOR PLASTIC SIDE CONTAINERS. CHECK FOR LEAKS AT WATER PUMP WEEP HOLE AND CHECK FOR LEAKS AT THE HEATER HOSES AROUND ENGINE BLOCK TO THE HEATER CORE HOSES. THERE IS A REASON CAR OVERHEAT.IF CAR OVERHEAT WHILE DRIVING YOU HAVE FAULTY THERMOSTAT OR LEAKING OUT COOLANT OR BLOWN HEAD GASKET.IF ENGINE OVER HEAT WHILE SITTING DURING A LONG IDLING PERIOD.YOU COULD HAVE FAULTY COOLANT TEMPERATURE SENSOR OR FAULTY COOLING FAN FUSE OR RELAY.HOT WIRE COOLANT TO SEE IF IT RUNS IF NO REPLACE FAN MOTOR. IF YES FAN MOTOR COULD HAVE FAULTY WIRE OR PCM FAILURE. CHECK ENGINE CRANKCASE IF OIL LOOKS LIKE MILK SHAKE ENGINE HEAD GASKET LEAKING.

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CHECK ENGINE COOLANT LEVEL.IF OKAY.CHECK BOTH RADIATOR HOSES BOTH SHOULD BE HOT. IF THERMOSTAT TOP HOSE NOT HOT YOU HAVE A FAULTY THERMOSTAT AND RADIATOR PRESSURE CAP IF RADIATOR HOSES HOT AND THERMOSTAT OKAY.IF ENGINE OVERHEATING WHILE CAR SITTING IN A LONG TRAFFIC LINE COOLANT FANS NOT RUNNING.THE COOLANT TEMPERATURE SENSOR IS BAD OR YOU HAVE FAULTY FUSE OR RELAY.THE FAN MOTOR DEFECTIVE, WIRES AT MOTOR HAS A SHORT OR PCM FAILURE DEAD DRIVE CIRCUIT TO FAN.

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Frontier 2000 2.4L King Cab 100K miles. Temp guage indicates overheating. Will intermittently spike then drop to normal. Engine does not "smell" hot or run rough at any time. Grab upper hose, you can...


I've had problems with Datsun (later Nissan) engines hanging the closed thermostat until it boiled, then the thermostat released and operated normally. If you increase the small vent hole in the thermostat valve plate a small amount, the problem disappears. It seems that steam from engine operation gathers behind the thermostat sensing bulb and delays opening. The increase in vent hole size lets the steam through and allows the hot water to open the valve. Hope this helps!

Oct 12, 2009 | 2000 Nissan Frontier

1 Answer

Overheating after driving about 15 miles


You probably need to change the thermostat in your vehicle; I found this answer in http://en.allexperts.com/q/Dodge-Repair-809/2000-Dodge-Intrepid-Thermostat.htm

THERMOSTAT - 2.7L
REMOVAL
Disconnect negative cable from remote jumper terminal
WARNING: DO NOT REMOVE PRESSURE CAP WITH THE SYSTEM HOT AND UNDER PRESSURE BECAUSE SERIOUS BURNS FROM COOLANT CAN OCCUR.

Drain cooling system.
Remove accessory drive belt for removal of the generator.
Raise vehicle on hoist.
Remove generator attaching bolts. Set generator aside for ease of access to thermostat.
Remove lower radiator and heater hoses from thermostat housing.
Remove thermostat housing bolts Thermostat and Housing - 2.7L Engine
Remove thermostat and housing.
INSTALLATION
Clean gasket sealing surfaces
NOTE: Install thermostat with the bleed valve located at the 12 o'clock position.

Install thermostat and gasket into the thermostat housing.
Install thermostat and housing to cylinder block. Tighten attaching bolts to 12 N·m (105 in. lbs.) Thermostat and Housing - 2.7L Engine
Connect heater and lower radiator hoses. Install hose clamps.
Install generator and attaching bolts.
Lower vehicle.
Install accessory drive belt. Refer to procedure outlined in this section.
Refill cooling system. Refer to Cooling System Refilling.
Connect negative cable to remote jumper terminal.

good luck

Ricardo DeLeon

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1 Answer

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THERMOSTAT FAULTY...OR ELECTIC COOLING FAN FOR THE RADIATOR...HOPE I WAS OF SOME HELP TO YOU.....

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did you change the thermostat? and it sounds like you have a vacuum leak that will make it idle high

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