Question about 1997 Jeep Wrangler

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Replaced radiator and tstat still over heating, water pump a little over a month old

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My used 4 cyl jeep radiator would only drain 1/2 of the fluid. jumped up and down on bumper and this dislodged the sludge in radiator and/or engine. flushed twice, then now notice low temp reading on gauge (out of specs) due to a low temp thermostat that someone installed due to previous over heating (sludge). Replace with factor spec thermostat and everything is fine.

Posted on Jun 20, 2015

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Posted on Jan 02, 2017

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SOURCE: 2001 JEEP ..RADIATOR IS COLD

The water temp is 195-210 degrees..the hoses are hot that go into the radiator..but the radiator itself is still cold?

Posted on Dec 25, 2008

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SOURCE: 1999 jeep wrangler very little heat

YOUR RADIATOR HAS TRAPPED AIR IN IT AND NEEDS T BE "BURPED".

Posted on Mar 02, 2009

  • 290 Answers

SOURCE: 99 jeep cherokee problem w/ heat

It could be a flap but more likely you have a air trapped in the heater core or the hoses connecting the heater core when refilled the system after your repair.
Loosen the supply hose that go to the heater core at the highest point and run engine until coolant comes out.

Posted on Jan 05, 2010

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SOURCE: My Jeep is leaking antifreeze. My water pump was

Well you have 2 heater hoses that contain antifreeze then the top and bottom radiatior hose most likely at the end of a hose where it connects to the motor has a crack on it

Posted on Jan 30, 2010

  • 2002 Answers

SOURCE: Over heating. Radiator = 1 yr old. Head rebuilt

Try replacing the thermostat first. If it's new with the head job then try removing it altogether and see if that helps. New ones can go bad. Make sure it is installed with the coil down in the engine.
Is there any chance that silicone or form-a-gasket was used in the rebuild especially around a water jacket? Silicone can break off after the part is tightened and could be plugging a water passage.
When you redid the head was there a choice of more than one head gasket and did you compare the new with the old to be sure it was an exact duplicate? I would be extremely suspicious of either the wro ng head gasket or it being up side down.Either of these could block water passages and create your problem. Hope this helps.

Posted on Jun 22, 2010

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1996 nissan altima no cabin heat, new radiator, flushed and filled, top hose hot, lower hose cold, newer thermostat checked good


HI Anon.
Remove your radiator cap (WHEN ENGINE IS COLD), run the motor and let it warm up a minute or two, have someone rev the engine a little while looking into the radiator. If the water goes down and/or you see the water moving, your water pump is good. If not this means that your water pump is bad and is not moving enough water through the system. Try Removing your thermostat and run the engine without it. Keep checking the radiator hoses to see if they are the same temperature. If they are not the same temperature the water pump is bad. If they are the same temperature your thermostat is more than likely the culprit. Hope this helps.

May 30, 2017 | Nissan Cars & Trucks

1 Answer

2002 silhoutte new tstat,radiator,belts and hoses runs hot no water at bleeder valve water pump 2 yrs old


It is running hot because have an air lock in the system. Check that the bleeder valve is not blocked . Take a hose off that is high up and run the engine until water comes out . Replace the hose and check for water in the radiator. Open the heater system to help bleed out the air.. If that fails take it to a radiator s\hop and have them pressure bleed it.

Jan 17, 2014 | 2002 Oldsmobile Silhouette

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My bronco is over heating


could be rad.thermostat stuck close,

Feb 21, 2013 | 1990 Ford Bronco

2 Answers

Overheating after replacing thermostat


If it over heated before the thermostat, replace the radiator cap. Make sure the coolant (recommend just water until this is fixed) is full. When disconnecting the upper hose you lose all the coolant from the engine and about 1/3 of the coolant in the radiator. If you only full the radiator you don't have enough water. The new remonstrate needs to open for you to get enough water. In short- take radiator cap off. Start the engine. Fill radiator. Watch level for 5min, filling as needed.

Dec 31, 2012 | 1993 Toyota Camry V6

1 Answer

Antifreeze is not circulating through radiator. Radiator is new - 2 months old. Also, no heat and fast idle.


Problem is not your radiator--unfortunate for you. It's more likely the water pump. The water pump pumps the water around through your radiator to be cooled and then through the engine block to cool your motor. Before you go tearing the water pump out though, you may want to check to see if your fan belt is in good condition and working properly because the water pump works off of the fan belt turning the pulley to pump the water around. If the fan belt is off that pulley, it may need to be put back on or re-routed correctly to start pumping the water.

Then if that is not your problem, the water pump will probably need to be replaced. I believe it can be accessed from underneath the engine compartment, but first you will have to take the tension off the fan belt and remove the belt, then loosen the bolts around the front of the water pump. Put a catch pan under the car though because all your water/antifreeze will come gushing out. That water pump should be available at your local AutoZone or another auto parts store for around $100.

Nov 17, 2010 | 2001 Chevrolet Blazer

1 Answer

Over heating. Radiator = 1 yr old. Head rebuilt


Try replacing the thermostat first. If it's new with the head job then try removing it altogether and see if that helps. New ones can go bad. Make sure it is installed with the coil down in the engine.
Is there any chance that silicone or form-a-gasket was used in the rebuild especially around a water jacket? Silicone can break off after the part is tightened and could be plugging a water passage.
When you redid the head was there a choice of more than one head gasket and did you compare the new with the old to be sure it was an exact duplicate? I would be extremely suspicious of either the wro ng head gasket or it being up side down.Either of these could block water passages and create your problem. Hope this helps.

Jun 22, 2010 | 1998 Jeep Grand Cherokee

3 Answers

My 04' over heating when idoling and ac is on


Fixed problem HERE........................


We changed thermostat, belts, water pump, hoses... you name it we changed it nothing worked. Just before we ordered a new radiator I took a few pics sent them to my dad and instantly he said to remove the bleeder bolt then fill radiator. That's it guys months of overheating a lot of money and hours of work when in the end it was so simple, cost nothing and took 2 mins.


Turns out most the Nissan motors have a type of bleeder bolt or something (not sure what its called exactly) on top of the motor and that should be removed while filling radiator. step 1 wait till engine is cooled down all the way. step 2 remove radiator cap. step 3 remove the bleeder bolt on top of motor (look around for it. Its just a little old bolt all alone) step 4 slowly fill radiator until coolant/water to come out of the bleeder hole. step 5 put bleeder bolt back in. step 6 put radiator cap back on. That's it. Good luck



if you do not do these steps air get caught in the system and when heated turns to steam. and your radiator cant circulate that steam because the hot air raises. The steam will just sit at the top of the motor and block the coolant/water from circulating through the radiator like it should. Without it passing through the radiator correctly it will not cool. Having a new radiator helps because when they installed it they probably filled it correctly (by removing that bleeder bolt). They knew they could have just filled the old one correctly but there isn't any $$$money$$$ in that for them. trimble7383_0.jpg

Jun 15, 2009 | 2004 Nissan XTerra

2 Answers

Trooper Overheating


Your radiator efficiency has been reduced by (what is called) blossoming. Blossoming is electrolytic growth of crystals inside radiator duct passages. This typically occurs in the older Troops as gradual overheating probs cause the vehicle to run low on coolant, then water is being used to top off system repeatedly, acid levels in cooling system rise as the coolant protectants degrade and the inside of the radiator ducts 'blossom' with small crystalline growths that reduce the radiators flow and ability to cool the engine. Flushing and blowing out the radiator are temporary fixes. Replacing the radiator is the permanent fix. You did the right thing by replacing the water pump, tstat and radiator cap. An old, original water pump usually fails soon after the radiator is replaced. New Trooper radiators are fairly cheap, $85+. The replacement can be done by any backyard mechanic or DIYer in under and hour. You know the typical warnings about the toxicity of antifreeze and the deadly affects on pets who drink improperly disposed coolant. Good luck to you. It's an easy remove and replace. Your Trooper will thank you with many cool running miles. -Geoff

May 01, 2009 | 1995 Isuzu Trooper

2 Answers

1999 jeep wrangler very little heat


next time you go up a hill see if the heat is still blowing

Nov 30, 2008 | 1998 Jeep Wrangler

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