Question about 2001 Dodge Neon

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Just installed a radiator and the car is not running hot but after driving for awhile you here a bubbling noise comming from under the hood

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If you did not replace the radiator cap, replace it, it may not be sealing. If the cap was replaced and assumed good, and its pushing air into the overflow bottle then it is indeed overheating and you may have a head gasket leaking. A shop can do a "block check" where they use a fluid to check the cooling system for combustion gases, this fluid is blue, if it turns yellow then you may have a head gasket problem.

Posted on Sep 01, 2010

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You may still have air in the system, and it is rising out of the engine, to the cap, then possibly to the expansion tank. With the engine COLD, remove the cap, start the car and let it run for a few minutes, shut it off and wait for about 10 minutes this will allow trapped air to evacuate from the system. Re check the cooling system expansion tank for proper level.

Posted on Aug 31, 2010

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2 Answers

Will the thermastat cause the car to run hot if you turn the heat on


Hi Kathy, I'm AL the owner of Big As Auto Repair

I look forward to helping you with your problem.

FIRST: I'd like you too, VERY IMPORTANT: after your vehicle has NOT BEEN RUNNING for awhile take off the radiator cap and see if it has coolant in the radiator, NOTE: if your coolant system has a reservoir {recovery Bottle} you should be able to see if coolant is in the bottle without removing the cap. To answer your question: YES a stuck closed thermostat can cause overheating BUT, it shouldn't mater if the heater is on or off, it will still over heat. SECOND: If the coolant I had you check is "FULL" then the next thing I need you to do is, with the engine running and the heater on look under the hood, VERY IMPORTANT: Please keep your hand away from any moving objects with the engine running. While you are looking under the hood I want you to see if the Radiator FAN turns on. NOTE: If the fan under the hood does not turn on before it overheats then you need further assistance to find out why the fan is not working properly. Click here for further assistance. Auto Repair

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My car is running hot, i have changed the water pump, all my hoses but the temp guage is reading as if it is still running hot, when i look under the hood nothing is bubbling or smoking, i don't k


on most cars if the temp sending unit goes bad the gauge reads as if the car is running hot. check sending unit before you waste more money.

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Coolant bubbling out of the overflow


While driving with the heat on you are taking the heat off of the coolant via the heater coil, letting the engine stay a little cooler. You might want to have your radiator cap checked, coolant level and also the flow through the radiator. it could be plugged. take it to your mechanic if you are not comfortable doing this yourself. You can be injured by hot coolant under pressure.

Nov 26, 2011 | 1995 Dodge Intrepid

1 Answer

Low radiator fluid light came on, engine started to smell like burnt wire/oil? Turned off let it cool and than added fluid. Heater now not blowing out hot air. I am plannig on adding more fluid b/c light...


will try to help.let car cool all the way off 1st take radiator cap off, top off w fluid, start car w/ radiator cap off. let it get to operating temperature w/motor running, keep addind fluid, look under car for leaks the whole time please!! if at any time-- you see fluid coming out beyond what you may spill or overfill,,shut the car off!! you may only be low on radiator coolant.with the radiator cap off while filling, you should see the fluid moving[circulating] inside the radiator, bubbles moving downward,,ok spewing upwards out of radiator NO if this repairs good, replace cap and drive 10miles regular speed. no hot,,good,,if hot let cool copletely,check cooling fan relays under hood,black box, look for fan relays, when key is moved back from on to off,,relayshould tick,put your finger on it while someone turns key off to on,WILL NOT SHOCK YOU!! just a very small vibration to fingertip. if this good, with engine running, do engine fan come on to cool, look between radiator and engine,at the fans to insure it;s coming on. you really should be able to hear it, but i prefer to see it visually. AS ALWAYS,IF YOU NEED FURTHER ASSISTANCE OR HAVE MORE QUESTIONS,PLEASE REPOST YOUR QUESTION, AND AN EXPERT WILL HELP WITH PHONE OR ONLINE ASSISTANCE.

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1 Answer

My 2005 jeep liberty is not running hot and the engine light is not on,.However yesterday while i was driving there was a rumbling or grinding noise and steam came from under the hood. I park the car and a...


Hi

Firstly do not use the car, it is either the water pump or the thermostat, sounds like the thermostat as you said it showed no signs of overheating. check that first as that is the cheapest part. if it is the water pump then again this might cause it to suddenly bubble up as the water is not been sent through the rad to cool. that rumbbling noise is the hot water and air, this will blow the head gasket and would be very expensive to get fixed.

Finally and quite unlikely the radiator could be blocked, doubtful but again worth a check, I would go for the water pump though as you said the water is coming from the middle of the engine. do be aware though that water could have came from the water bottle where you put it in. So would suggest the thermostat again.

Hope this helps
Regards
Dan

Nov 07, 2010 | 2005 Jeep Liberty

2 Answers

I have a 2006 Toyota Highlander. I just got it back from the dealership to get timing belt, water pump, and steering column replaced. When I checked under the hood I heard and saw bubbles in the coolant...


They may have used a chemical flush when they drained the system during it's service. It is normal to have some bubbles sometimes. Are you having overheating issues, heater not working, anything of this nature? Turn the heater on during normal operating temperature and drive around the block. Now, since it is hot outside, one trip should be sufficient. Don't kill yourself, lol. Look under the hood and see if this may have cured it. To have some bubbles is not catastrophic. As long as you are not having any issues, carry on. Please let me know if you are having any issues.

Aug 18, 2010 | 2006 Toyota Highlander

2 Answers

Car runs well but after driving it awhile the fan does not come on. the temp gauge in the dash does not go up past halfway but steam comes from under the hood.the fan works and i replaced the temp sencer...


Typically when there is steam coming from the hood there is a pin hole in the radiator or hose. Most of the time when I see this problem there was a small chip in the radiator from a stone. It would allow steam to push out of the radiator but it was small enough to not allow any fluid to drip out. Hope this helps!

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1 Answer

Odd 2001 Dodge Intrepid symptoms


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1 Answer

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