Question about Dodge Intrepid

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How can i determine if the water pump is working? i replaced the radiator and the thermostat. The car continues to over heat. any ideas? Also how can i bleed the air out of the system? could the water pump be the cause? bubbles are forming in the reservour.

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If you squeeze the upper radiator hose and it feels like the coolant is running thru it, your pump is working. The system should bleed itself within a few minutes if you keep the radiator and reservoir full. If it continues to bubble, you have a blown head gasket. :-(

Let us know if you need more help.

Posted on Sep 12, 2010

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The water pump can possibly be the cause. I would make sure that all of the air was out of the system before coming to that conclusion. Take the top radiator hose off shove a garden hose in it wrapped with a rag so that is makes tight fit in the radiator hose. Turn on the water and flush the system watching for air bubbles in the radiator. Air bubbles = you finally purged it or no air bubbles... suspect the water pump. Once you stop seeing air bubbles re-connect the upper hose and test engine. With the engine at near normal operating temps you should see water flow in the radiator with engine rpm at 1800. have someone cycle the accelerator idle to 1800 rpm and watch for water flow. If you note good water flow there is something else wrong. Fan, head gasket etc.
Once your all complete you can re-service the coolant by draining back the radiator via the drain plug and adding coolant / anti-freeze. It should not repeat the air in system problem.

Thanks for choosing FixYa.

Kelly

Posted on Sep 12, 2010

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I have a 1999 Camaro I have no thermostat in it have the cooling fan wired up direct with a new radiator it seems that sometimes the water pump pumps water and sometimes it doesn't I don't understad


the pump will pump water at full blast without the thermostat
unfortunately if the radiator cores are blocked then that description is indicated
try replacing the radiator with a new one and refitting a thermostat
with a new radiator you are very likely to get an over heating problem as the pump will pass water quicker that it can be cooled and so the water temp will continue to climb

Oct 01, 2015 | Cars & Trucks

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2004 Audi a4 1.8T quattro has overheating engine problems but no heat is working when we turn on the heater


goodyear are tyre mechanics
water in the oil is from a hole in the housing (aluminium timing chain cover ) behind the water pump impeller or problem head
before anything was replaced , a compression test should have been done to determine the condition of the head and head gasket
next a coolant pressure test should have been done to determine if there was a leak in the cooling system ( the housing crack would have been obvious at the test
water pumps always work if there is water for them to work in and only need replacing if there is a water leak from a hole in the housing ( seal failure ) or there is a failed bearing noise
I could suggest that you find an accredited professional service center that has experience on your make of car and get a proper diagnosis before you waste any more time and money on tire mechanics

Mar 25, 2017 | 2004 Audi A4

1 Answer

How do I check to see if the water pump is working on a 1991 Ford Bronco?


  1. Open the car hood and locate the thermostat on the top of the radiator lid. Pull the thermostat and start the car. Watch the temperature gauge carefully. If the water pump is working properly, the engine should take a long time to warm up (if it ever does). With the thermostat removed, the coolant should circulate continuously, making it harder for the engine to warm up. If you cannot tell if the car is heating up slow or not, move to Step 2.
  2. Turn the car off and locate the water pump and the water pump drive belt in the engine compartment. Use the wrench set to loosen the belt retaining bolt and pull the belt off of the pump. Spin the belt drive with your hands to see if it rolls smoothly and to determine if there is any movement or "play" in the driveshaft. If the pump seems in good working order, replace the belt, tighten the retaining screw back up, and move on to Step
  3. Locate the coolant drain plug on the bottom of the radiator and use the wrench set to remove it. Allow all of the coolant to drain out into a container and dispose of it. Replace the drain plug in the bottom of the radiator and then pour coolant into the radiator. Start the car up and watch the level of coolant carefully. If the water pump is working properly, the coolant level should drop quickly as the pump circulates coolant to other areas of the engine. Fill the radiator back up with coolant and watch it to drop again. If the coolant drops then your water pump is fine, however if the coolant drops very slowly or not at all it may be time for a new pump.

Feb 27, 2012 | 1991 Ford Bronco

1 Answer

MY CONTOUR IS OVER HEATING


Most people think of this is a common problem of the thermostat. To make sure it is not the only problem, run your car a day or two without the thermostat to make sure it is not overheating anymore, then put in a new thermostat. Your problem is solved.
However, if your engine still has overheat without the thermostat, then there is a problem with restriction of coolant circulation through the engine from 3 followings:
1- Radiator clogged up.
2- Water pump is bad.
3- Water jacket is clogged up.
A shop can easily determine if the water pum bad or not.
Make sure to find a reputation shop since a yo-yo shop can change your water pump first then later on determine the clogged up radiator is the culprit while you are not actually needing a water pump at the first place. Why, a good water pump still causes overheat since the radiator is clogging up. My advise is not to use a rebuilt radiator, go with a brand new one. It can last you 10 years instead of 2 years on the rebuilt one. Good luck.

Sep 13, 2010 | 1998 Ford Contour

2 Answers

My nissan max continues to over heat. i replaced the radiator. but the mechanic did not replace the thermostat properly. do you think the over heating is due to needing a new thermostat?


not at all times can thermostat contol your cooling system, check for water leaks, water pump, radiator fans(check for speed) if all your cooling systems are good , replace your cylinder head gasket,

Jun 25, 2010 | 1995 Nissan Maxima

2 Answers

I HAVE A 2000 ALERO.. MY HEATER IS NOT WORKING AND MY CAR IS OVER HEATING.. WHEN MY CAR IS COLD AND I FILL IT WITH WATER, WITH THE CAP OFF, I THEN TURN MY CAR ON AND THE WATER DOES NOT PUMP UP AND THEN I...


Hi there camcam,

Ok, first off the cooling system has to be full and circulating for the heater to work. When we get the rest of it solved, the heater will take care of itself.

Now the overheat problem. We need to determine if the engine is overheating because of lack of coolant or the lack of coolant is because of the overheating (Boiling off).

If you have to put in any significant amount of water on a regular basis, it has to be going somewhere. If there is a pool of coolant forming under the car, there's a leak. You need to locate it and act according to where you find it.

  • Radiator - weld or replace
  • Hoses - replace
  • Water pump - replace (check fan if attached, for balance)
The thermostat is a temperature triggered valve that periodically routes coolant circulation through the radiator. This allows hot water from the engine to be exchanged with cool water from the radiator.

A malfunctioning thermostat doesn't allow the heat exchange process, the engine overheats, coolant turns to steam....

Although rarer, the same result occurs if the water pump does not circulate coolant. When a water pump fails, it's usually leaking through a shaft seal.

So, if you don't find a leak, the thermostat is the first (and least expensive) thing to address.

I hope you find this to be instrumental in solving your problem.

Best regards
Mike


Apr 06, 2010 | 1999 Oldsmobile Alero

1 Answer

The water on my car keeps heating up alot and it goes into the engine coolant resevoir leaving the rediator dry


You need to replace the radiator pressure cap. I would also replace thermostat, drain and flush radiator to start. If it continues the water pump may be not pumping water. If the thermostat is stuck closed it wont allow water to cycle through the engine causing it to boil and the pressure cap is not holding the pressure allowing it to flow to the reservoir. So first change the thermostat and the radiator pressure cap.

Sep 17, 2009 | 1993 Toyota Camry V6

1 Answer

1989 Ford Escort GT overheating


Sounds like to me it would be your water pump before a heater core. When the water pump goes out, it stops pumping the coolant through the system which is what would cause it to still overheat even with the thermostat out. Change the water pump and you should be good. Let me know if you have any other questions. Thanks for using FixYa!

Jul 14, 2009 | 1989 Ford Escort

1 Answer

Overheating


Hi,

Based on your description "hard line from thermastat area has a heat wraparound it goes towards firewall", that would appear to be part of the heater system for the inside of the vehicle and would not affect the overheating of the engine.

Most engine overheating could be caused by:
  • insufficient coolant in the radiator or reservoir;
  • defective (stuck) thermostat;
  • too soft radiator hoses (upper/lower);
  • water pump, belt, tensioner;
  • clogged radiator;
  • radiator fan motor, clutch (if has got one), relay.
Additionally, in a large number of vehicles, the radiator fan motor would only work the A/C or heater is ON.

Corrective action would require determining which is the culprit, pls try:
  • remove the thermostat completely out and test drive, see if the overheating comes back, if yes, then it is not the thermostat, if no then the thermostat most likely is stuck closed and would need replacement;
  • on start from a cold engine, remove the radiator cap and pls check if the water flows when the engine is revved. If yes, water pump is working, if not, water pump is defective;
  • in a closed loop cooling system such as in your car, there is a possibility that the radiator hoses might have thinned down or gotten softer. This could be checked by revving the engine while looking over the hoses, there should be apparent sagging or reduction in diameter when the engine is revved. If any, then they are too soft and would need replacement;
  • clogged radiators could be flushed/cleaned by removing the drain plug at the bottom.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

Aug 08, 2008 | 2000 Chevrolet Silverado 1500

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