Question about 1996 Honda Prelude

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Over heating engine at running temp temp gauge goes right up then water drops under the car

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Is the cooling fan working, is the system low on coolant?? You may have either a defective cooling fan or a stuck closed thermostat, either will cause overheat condition

Posted on Jul 31, 2008

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I have a 02 Grand caravan that has new radiator, termostat, one new fan. the temp gauge goes up to max hot the drops right back down in seconds. what could be the problem?


it could be you have an air lock in the cooling system
remove the rad cap from the rad, start the engine and let it run until the coolant drops (add to fill it back up) or until the coolant boils out of the rad spout.

maybe pull the heat sensor. -replace it OR clean it off, reinstall it.

Mar 12, 2015 | 2002 Dodge Grand Caravan

1 Answer

HEATING ISSUES


One way to tell a bad thermostat in a car is if the car overheats frequently even if there is water in the radiator.Stuck open - no heat from heater, temp gauge hardly moves off of cold.
Stuck closed - overheats engine, temp gauge quickly climbs to hot.listen for any rubbing, grinding, or whining noises from the pump. look under water pump while running, if pump is going bad. water will come out of weep hole on the bottom of the pump. good-day!

Apr 07, 2014 | 2005 Kia Sorento

1 Answer

Overheating problem


i had something similar once, it ended up being the intake radiator hose, it has a metal coil inside, mine was broken and when you revved the motor it would **** the hose shut and overheat, but under 2000 rpm it was fine .

Jan 21, 2012 | 1997 Peugeot 306

2 Answers

95 olds replaced therostat now temp gauge high then goes down when fan goes on then back up and down. Whats the cause?


You have an air pocket in the engine that is preventing coolant circulation. Let the engine heat up and then shut it off to cool the engine back down. After doing this a few time the air pocket will usually work its way out. Hope this helps:)

Dec 18, 2010 | 1994 Oldsmobile Cutlass Ciera

1 Answer

Vw polo 2002 heat gauge goes rite up and sometimes down to 0


hi is the water flowing through the engine ie radiator blocked, water pump. regards

Feb 01, 2010 | 2002 Volkswagen Golf

1 Answer

How to replace thermostat on


Do this when cool. Take radiator cap off, start the engine, turn on heat (not defrost) and now top up coolant to about an inch or 2 from top of radiator, as level drops down, and let vehicle run until the radiator fan comes on, then off, about 3 times, and add coolant as needed while it's running. After that, put radiator cap back on tight & make sure return bottle is filled to proper level. Now try that & see how heat is, temperature gauge etc, and keep an eye on return bottle level for a while. Let me know how it is.

Mar 27, 2009 | 1992 Nissan Maxima

2 Answers

Thermostat?


It actually sounds to me like you're low on coolant. My Jeep leaks coolant and whenever it gets low the temp gauge will go real high and then drop, and the heater doesn't work well. This is because the cooling system of your car is supposed to be a closed system, full of coolant and no air. When coolant leaks out, the space it used to occupy is now occupied by air, which does not transfer heat well. When 'air' is passing through your cooling system, no heat can be transferred from your engine to the heater and radiator, resulting in a hot engine and no heat at the heater. Then when a pocket of water passes through the system, the temperature gauge quickly falls as the water absorbs the heat from the engine. The hot water that cools the engine is where the heater gets it's heat from as well, so when water passes through the heater core, the heater works, but when it's filled with air, it doesn't.

Hot water runs through the heater core regardless of whether or not your thermostat is open or closed. That's why your heater works in the winter even before the engine is at normal operating temperature. The fact that the heater stops working is a good sign that the thermostat is probably not the culprit.

As for the water pump. If the water pump was bad, your temp gauge would go into the red and stay there. Water pumps generally don't work intermittently. Either it's good and ot works, or it's bad and it doesn't.

However, if you are in fact low on water, as I suspect, it means you probably have a leak somewhere. The leak could be in the water pump housing gasket, so depending on where you take it for repairs, they may try to sell you a new water pump anyhow. So just beware of that.

Feb 12, 2009 | 2004 Chevrolet Blazer

2 Answers

I have a 2000 Daewoo Leganza. When I first bought it, there was no heat in car, temperature guage was blowing sky high and shutting down engine. It was discovered that there was engine problems, so that...


You have air in the cooling system, it needs bleeding, this is best done from the heater hoses. you cannot have a heating or cooling sysem that is not pressurised. no water no heater no demister no temp guage

Jan 17, 2009 | 2000 Daewoo Leganza

1 Answer

Tempreture gauge drops to cold and car stops


Sounds like faulty engine temp sensor. When it drops to cold, the engine control unit picks this up and alters the fuel mixture accordingly. The ECU will be making it a very rich fuel mixture for cold starting, hence very poor running when engine is hot.

TL

Jan 12, 2009 | 2006 Renault 181

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