Question about 1997 Plymouth Neon

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Antifreeze leak only when thermastat is open

New radiator i year ago , have had no problems , hoses looked at that time.

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Can you tell where the leak is coming from ?

Posted on Dec 12, 2012

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1 Answer

Antifreeze leak


The hoses could seem ok but have tiny cracks in them that you can't see if they were not replaced. With antifreeze the flange the hose goes on could be rusting from antifreeze and cutting the hose. Cut the end of the hose past the clamp mark if there is enough slack. and put back on. The clamp could either be too tight and cutting the hose on the metal flange or not tight enough. Squeeze the hose and if you see cracking in the hose replace it. Also, if you over fill it it could be a problem or you got a bad radiator. If it is a tiny leak in the radiator you can use radiator stop leak. http://picsbox.biz/key/radiator%20leak%20sealant. Check all the hoses and clamps and make sure the belt on the water pump is ok too. Good luck. They are a great car and worth the effort especially if you havea V6.

Jun 20, 2014 | 1994 Chevrolet Cavalier

1 Answer

2003 kia sorento leaking antifreeze after new radiator


You will want to taste the leak (or get someone else to do so) and make sure it is not water.
Antifreeze has a very sweet taste.
You should only need one drop, and be sure to rinse your mouth out really well afterwards.
Whenever a radiator is replaced, the hoses attached to it can also begin to leak, because the rubber hardens with age, and can be harder to seal again.
I prefer a stainless steel band clamp, not the original equipment.
A good flashlight would be a help as you look for the problem.
Be sure to check the heater hoses, and the other hoses that carry coolant, as any of them could be leaking, due to "being disturbed" or due to the possible higher pressure the new radiator is giving the cooling system.
Be blessed.

Mar 18, 2013 | 2003 Kia Sorento

1 Answer

I have a 2004 pacifica. I've changed the hoses and the thermastat and the car is still losing the antifreeze. the mechanic said that he does not see a leak. The radiator was also cheked and it'


drain the oil an see if it has water in it. if it does that you have a big problem. if not that make sure the freeze plugs are in other than that umm...idk if there is no leaks than it has to be draining into your oil

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1 Answer

Engine overheat changed water pump thermastat radeatorfan temp sensor bottom radeator hose what else could it be


blown head gasket,check oil for water in oil,gray milky look,check antifreeze in radiator for color,check exhaust for white smoke or water-coolant if its going out exhaust gasket blown inbetween cylinders,see if pushing antifreeze out of radiator etc.check radiator for leaks pressure test it,cap on radiator bad?

Jul 21, 2011 | Chevrolet Cavalier Cars & Trucks

1 Answer

I need to find the thermostat location in a mazda '96 B2300 SE


THE THERMASTAT WILL BE LOCATED AT THE ENGINE SIDE OF THE RADIATOR HOSE! ON THE ENGINE, YOU WILL SEE TWO BOLTS HOLDING THE INLET ON THE ENGINE! DRAIN THE RADIATOR, AND REMOVE THE HOSE FROM THE ENGINE INLET! UNBOLT THE INLET, AND YOU WILL SEE THE THERMASTAT, REPLACE IT IN THE SAME WAY THE OLD ONE COMES OUT, (USUALLY THE SPRING SIDE WILL GO IN TOWARD ENGINE)! THEN PLACE THE NEW GASKET ON THE INLET, AND REBOLT IT TO THE ENGINE! REPLACE THE HOSE, TIGHTEN IT DOWN, ADD ANTIFREEZE TILL FULL, START ENGINE, AND CHECK FOR LEAKS! YOU CAN REMOVE THE RADIATOR CAP AND WATCH THE COOLANT, AS THE THERMASTAT OPENS, THE COOLANT WILL START MOVING! REPLACE THE CAP,

Mar 11, 2011 | 2007 Mazda B2300

1 Answer

Thermostat is acting up is it easy to change


YES! DRAIN THE RADIATOR! THE THERMASTAT IS AT THE ENGINE SIDE OF THE TOP RADIATOR HOSE! REMOVE THE HOSE! AND THE THERMASTAT HOUSING HAS TWO BOLTS HOLDING IT ON! REMOVE THE TWO BOLTS, AND THE HOUSING! CLEAN THE AREA AROUND THE BASE OF THE HOUSING! SCRAP OFF THE OLD GASKET FROM THE HOUSING, AND ON THE ENGINE! REPLACE THE GASKET WITH A NEW ONE! PLACE THE NEW THERMASTAT IN THE SAME DIRECTION AS THE OLD ONE COMES OUT! REPLACE THE HOUSING, TIGHTEN THE BOLTS, AND PUT THE RADIATOR HOSE BACK ON, RETIGHTEN IT, AND FILL WITH ANTIFREEZE, AND CHECK FOR LEAKS!

Feb 26, 2011 | 1996 Pontiac Grand Am

1 Answer

Sometimes after first starting my 2001 lincoln ls i smell a strong fuel odor.. also after driving my car for just a short distance and then killing it i get a strong antifreeze smell when i lift up the...


I have a 2004 Lincoln LS with the 3.0 engine,bought used a couple of years ago,lost power,the hose that goes to the PVC valve broke at clamp in front,found a new hose from Ebay for 50 bucks,I fixed it.The guy that I bought it from had someone put new spark plugs in and they didn't put hose back on right and the valve cover gasket wasn't put on right which makes it leak oil now,plus the radiator is leaking at top on the left,so now I have to add anti freeze often till I can fix it,that's a common problem with our Lincolns.Open your hood,at the top right by windshield is your antifreeze over flow container,check,it's probably out,I use ZEREX G-O5 from Advance Auto parts.Open hood and look for antifreeze around and you will find the leak,mine is to the left side,down a little,but toward top of radiator.

Aug 24, 2017 | 2001 Lincoln LS

1 Answer

How do I change a thermostat in a 2001 New Beatle VW


First you should drain the antifreez by opening the drain plug located by the lower radiator hose. Then take the upper radiator hose off. Then take the 2 bolts out that hold the housing on. Remove the housng and there is your thermastat. Accordind to VW they want you to put antifreeze on the o-ring I use RTV a little extra help sealing just don't put a lot on. The book says to put thermastat in housing and turn 1/4 turn to right. I'm not sure why but thats what it says. TIP If you close the drain plug now and put as much antifreeze in as you can makes it easyer to get air pockets out later. Mount your therrmostast housing back to block and tighten bolts. Again put as much antifreeze in that you can them put upper radiator hose back on. Again put as much antifreeze in that you can. Now come the hard part sometimes getting all the air out of the cooling system. Put the radiator cap on but loose run the engine till the cooling fan kicks on but keep checking the coolant level. WARNING ANTIFREEZE WILL GET ABOVE 200 DEGREES
both upper and lower radiator hoses should be hot and radiator full. If both hoses aren't hot you have an air pocket that you have to get out. To do this run the engine a couple minutes after the fan kicks on then turn engine off for 5 or 10 minutes and start over keep doing this till both hoses get hot and the air the fan is blowing is hot. Once this is doe yout ready to go. I hose off any antifreeze that got one car so if you see antifreeze under car you know something is leaking and not what was spilled. 254a047.pnga06a9b1.png

Oct 20, 2010 | Volkswagen New Beetle Cars & Trucks

2 Answers

HOW TO CHANGE THERMOSTAT ON THE V-6


First make sure engine is cool.
-Put drain pan under car, coolant will run out.
-Remove the TOP radiator hose that runs to the metal thermastat housing. Coolant will now be running out, try and direct it to the drain pan below.
-Remove the thermastat housing, BEFORE removing the thermastat make sure you TAKE NOTE at how it is situated in the casting.
- Take the thermastat housing and run a wire brush on the flat spot were the old gasket material is.
-Both mating sides of the thermastat housing MUST BE PERFECTLY CLEAN. There can not be any old gasket material left.
-Insatll new thermastat.
-Put a very light amount of PERMATEX orange high temp. silicone on BOTH sides of the new gasket.
-Put a small amount on bolt threads also.
-Now install thermastat housing, and bolts.
-Tighten bolts down a little at a time, alternating between the two, unitl till they are tight.
-Install the radiator hose, and tighten hose clamp.
-Remove radiator cap, pour in coolant, until it sits just below the radiator cap neck. This may take a little time as the system has some air in it.
-Install the radiator cap. Make sure you radiator overflow tank is filled properly.
-Remove the drain pan, make SURE ALL the tools use used are secure, and out of the engine bay.
-Start engine, and place your heater control to 'HEAT"
-Let engine run until the top radiator hose is hot, which means you thermastat has opened.
-Keep watching the engine temp AT ALL TIMES, we wnat to make sure there is no air in the system.
-Inspect for any leaks. Now when the top radiator hose is hot make sure the hose clamp is tight.
Please let me know how it goes.

Feb 11, 2010 | 1993 Buick Skylark

1 Answer

My 1999 eldorado overheats, nothing is leaking, coolant has not been changed until now, could sludge be cloging thermastat, should i change it? I changed radiator cap, Could air pockets cause overheating?


If you aren't loosing any antifreeze, you might check to see if the coolant fan on the radiator is coming on. If the thermastat is sticking your radiator hose will be solid to even swellen sometimes. Of course not to mention that if a radiator is over 5 years old, it could be bad, so you may need some things checked futher.

Oct 19, 2009 | 1999 Cadillac Eldorado

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