Question about 2001 Volkswagen Passat

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Over heating changed the water pump and thermostat and still running hot. could this be a clogged radiator. How can I tell?

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IT COULD BE OR WORSE STILL AND I FEAR ITS THE HEAD GASKET!!!!!!!!!!!

Posted on Jun 30, 2009

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2007 nissan exterra overheats


Hi Kim,

I can feel your frustration. It sounds like you've done all the logical stuff already. The "donut hole" in your process would seem to be not changing the water pump. The water pump as you might imagine, is responsible for circulating (pumping) the relatively cool water in the radiator into the running engine that contains the hot water. Hoses connect the two together. A thermostat is between the radiator and the engine. Once the water in the running engine gets to a certain temperature, the thermostat opens allowing the water pump to send cool water into the engine and hot water out to the radiator to be cooled. The heater core is usually on the passenger side firewall area.

It sounds like the water pump is the only thing left to change - if it isn't working - it can't circulate the water - and will result in overheating. Lastly, a clogged heater core shouldn't cause the engine to overheat - in fact, if the engine begins to overheat, you should turn the heat to HIGH fan and HIGH temperature to help remove some of the heat in the coolant.

Good luck!

Apr 11, 2014 | 2007 Nissan Xterra Off Road

1 Answer

1998 cherokee jeep over heating.took out thermostat changed water pump hoses raditator water seems to not be flowing into block


thermostat in backwards.the part that senses temperature change isn't exposed to the hot coolant inside the engine. , or coolent passages clogged, here is what sometimes will happen:

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They can and will totally clog up, try to flush the system if not too far clogged.

Dec 17, 2013 | 1998 Jeep Cherokee

2 Answers

Engine overheat and no heat


Maybe your radiator is clogged.

Mar 12, 2017 | 2001 Nissan Sentra

1 Answer

Running hot


Remove thermostat and test it by dipping it in cold water ib an open pot. Heat the water on the stove while observing the thermostat. It shold opel just before the water boils. If it does check the radiator itself for clogging. Also fluch the engine water galleries.

Sep 27, 2012 | 2000 Chrysler Town & Country

3 Answers

I keep overheating changed out thermostat and fan and still overheating I fill the hose with coolant and it all goes into the overfill tank and gets hot and boils out


A clogged radiator could be your problem. Flushing won't necessarily clean out a clogged radiator.
When it's idling and getting hot, the clutch fan should be running full on, actually "roaring" as some say, and the electric auxiliary fan or fans should be on if you have them. Also test your radiator cap, replace if needed. Hope this helps.

Jul 03, 2011 | 2003 Dodge Durango

1 Answer

I have a 2000 nissan maxima and just recently i noticed it was running hot. so i took it to my mechanic and he advised i needed a new water pump. so he replaced the water pump and he is saying it is still...


hot engine usually due to clogged radiator or bad thermostat. Take out the thermostat and make sure it is opening fully in boiling water.
Look inside your radiator for signs of clogging. If yes, professionally flush or replace radiator.

Aug 22, 2010 | 2000 Nissan Maxima

1 Answer

I have a 2001 sonoma which is running high on temperature. I just changed thermostat and it still running too hot. The heater does not blow heat and when I took out the thermostat it seemes like it needed...


The radiator might be clogged. Take it and have the system flushed out,and back flushed, that will tell if there is a clog somewhere. If the radiator is too clogged, it will need to be replaced.

Mar 28, 2010 | 2001 GMC Sonoma Extended Cab

2 Answers

OVERHEATING


This could be a multitude of things:

Stuck closed thermostat.

Cooling fan not coming on.

Clogged radiator.

Low on coolant.

Water pump failing/leaking.

Head gasket blown, leaking exhaust into antifreeze.

Clogged catalytic converter.

Thermostat: If the Van heats up, then feel the upper radiator hose. If it's cold, then your thermostat is closed. Replace thermostat.

Coolant: If low, simply fill with distilled water and coolant. Low levels will let engine over heat.

Radiator: If there are cold-to-the-touch spots on the radiator after it should be warmed up, then a clogged is probably occuring. Have radiator flushed.

Head Gasket: If you smell exhaust fumes in your coolant reservois tank, then you got a blown head gasket.

Cat Converter: Only can be tested if off the car. Or you could try a non-contact thermometer. These are also good to testing cold spot on radiator or if thermostats are open.

Cooling fan: If mechanical it'll be spinning. If electrical, it should come on automatically with the A/C, or when it gets hot.

Water pump: Will be leaking from the front if it needs replaced. On a van, it's a tough job.

Good luck!

Feb 10, 2009 | 1995 Ford Econoline

2 Answers

Running hot


Check the Tension on the Belt. If it is not tight enough or you need a New Tensioner for the Belt, It will run hot. It is not letting the Water Pump Cool the Motor fast enough. You might also Check the Radiator. If the Radiator is Even a Little Clogged, It will overheat. Also, Check the Fan clutch, If it is not working Properly, You will overheat. Let me know what you find!

Jan 24, 2009 | 1996 Chevrolet Cavalier

1 Answer

Heater gets cold while running down the road


the thermostat is stuck open. Youv'e got a little rust in the coolant, right?

Nov 25, 2008 | 1995 Chevrolet Caprice Classic

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