Question about 1999 Jeep Grand Cherokee

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Engine Running hot, temp gauge goes to highest/hotest position, water spewing from radiator.

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It sound as if you need to replace your radiator give these websites a try www.alldatadiy.com and www.autozone.com if all fails stop by your local library and get your hands on a Haynes auto repair manual for your SUV wish you the best of luck Michigan Man.

Posted on Oct 08, 2010

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My radiator has coolant bubbling out of the upper corner sort of where it connects to the upper hose. Is there a gasket or oring there? Does bubbling mean there's air in the system?


Your radiator has got a damage. For a short term you can use liquid rad seal; but is to be repaired/replaced. When engine/coolant temp is rising volume/pressure is rising too, excess usually goes to expanding canister, but since there's a hole in rad, it gets spewed out.

Jun 11, 2015 | 1996 Chrysler Concorde

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Temp/gauge not reaching normal working temp-richer


the first thing to check is to feel if the radiator is hot, if the radiator feels hot and the engine is also hot the coolant is circulating ok then the problem is more than likely electrical, the temp gauge gets its signal from the engine control module the coolant temp sensor sends coolant temp signal to engine control module for engine managment purposes then passes it to instument pack/gauge, if the sensor was at fault you would have engine running problems also,with poss fault codes logged, if the engine and rad are cold/only warm after the engine has been run for 15 mins or so it sounds like the thermostat is stuck open but you have changed that. i have had faulty new ones in the past and have had to test them in a pan of boiling water, hope this is some help to you.

Apr 02, 2015 | 2006 Jaguar X-Type 2.0

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I have a 02 Grand caravan that has new radiator, termostat, one new fan. the temp gauge goes up to max hot the drops right back down in seconds. what could be the problem?


it could be you have an air lock in the cooling system
remove the rad cap from the rad, start the engine and let it run until the coolant drops (add to fill it back up) or until the coolant boils out of the rad spout.

maybe pull the heat sensor. -replace it OR clean it off, reinstall it.

Mar 12, 2015 | 2002 Dodge Grand Caravan

2 Answers

Air pockets in radiator


Air can be purged. While your engine is cool remove radiator and reservoir caps. Place funnel in radiator. Turn heat to the highest position and start vehicle. Add coolant to radiator as needed while vehicle warms up. You should see bubbles coming out of radiator. Fill reservoir to between cold and hot fill lines. Replace caps when bubbling stops but before coolant temperature reaches normal operating temperature. Never remove the radiator cap until engine has fully cooled down.

Jan 15, 2013 | 2008 Nissan Frontier

1 Answer

2004 Impala ls temperature dash gauge


fans came late on those car,like 212 and second fan comes on at 224,you reprogram it to come a lot sooner,,other thing is there might be gunk inside the block,and coolant has hard time to pass through,and staying longer than enough in block temp goes high,even tough the radiator is doing it's job,it is just coming out block lot hotter than it suppose to be,and gauge read the block not the radiator

Apr 18, 2017 | 2004 Chevrolet Impala

2 Answers

Hi have a 2004 freestar I changed radiator-, water pump , thermostat, engine coolant if I drive on flat street my van runs good temp is normal but if I go uphill the gauge goes up to almost red once I...


Sounds like a faulty temp guage/r a strange malfuntion in a sensor to me as well, only doing it when it going up hill really makes no sense for the way the cooling system works so I doubt that its actually running hot, which is likely why he asked about the gurgling noise, it would force water back into the resivoir if it was running hot assuming that the thermostatic radiator cap is working properly.

Sep 14, 2011 | 2004 Ford Freestar

1 Answer

As soon as I turn on the car its running hot. Sat all night. Coolent is a little low but not bad.


Is the car actually running hot, or is your temperature gauge telling you it is? Even on the hotest day, your engine still has to reach 210F+ before it opens the thermostat, so running hot as soon as you turn the car on, is not possible. Use a termperature gauge to measure the temperature of the coolant in the radiator overflow resevoir, to see if it what it reads.

The only time it will actually get hot almost immediately is when you have a blown head gasket! Are you getting any sign of water on your oil dip stick or and oil scum on your coolant in the resevoir?

Jul 03, 2011 | Ford ZX2 Cars & Trucks

1 Answer

Ny 1997 BMW z3 is still overheating after replacing thermostat and I see a small hose right near the cylinders that has a leak. What hose is this as I cannot find what kind of hose it is in the manual. My...


Verify radiator is clear and getting air through it. Once engine starts to get warm, spray radiator down with cool water and see if the temp goes down.

Apr 23, 2011 | 1997 BMW Z3 Roadster

1 Answer

Temp gauge went to 260 & stayed there. What could be the problem?


The only real way to answer your questions is for you to open the hood and look it over. Once it has cooled down, re-fill the cooling system (use water...it's cheaper and to do repair you will need to repalce it anyhow...Once full carefully look everything over to find where the leak is.Also make sure that the drivebelt is there. (from what you said, likely it is) If it's water pump, you will see coolant running out from under the pulley. Once you have looked everything over, if you have not found leak, start engine and close the cap...look again...as pressure builds, small leaks will become more obvious. If you don't find leak, remove the thermostat and change it.
After changing stat, if problem persists, it's likely that you have either a plugged radiator or an internal engine gasket problem. If you have any auxiliary electric cooling fans, make sure they are working and also check the fan clutch on the mechanical fan (it should not excessively freewheel when hot). Whole testing, any time you replace the radiator cap you must allow engine to cool down before removing it again. Watch temp gauge while testing...don't allow engine to overheat.

Apr 03, 2009 | 1995 GMC Yukon

2 Answers

Dash Temp Gauge reading extremely hot


You need to pressure test the cooling system. If it holds pressure, I would look at replacing the water temp. sensor. If it doesn't hold pressure, you have a coolant leak going on. If you don't see it dripping on the ground or inside the car, I would be suspecting head gasket problem.

Jun 09, 2008 | 1995 Ford Taurus

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