Question about 2007 Jeep Grand Cherokee Overland

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Check engine light came on, then temp of engine ticked all the way up. Once I started moving it moved back to a normal level. Once in the garage I popped the hood and noticed there was no coolant. I filled the coolant up, and drove with the a/c on and the check engine light was still on, however the temp never moved above the 50% mark. Any idea what it could be? I thought it might be a loose hose but wouldnt more coolant solve that problem?

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  • Richard Scordino May 11, 2010

    First thing you need to do is determine where the coolant went and why. Once that is corrected, then you can begin looking for any other problems caused by the overheat.



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You have to find the leak. The Check engine light is probably on for engine over temperature. You will need a scan tool to confirm. Look for a leaking waterpump or thermostat housing on those models.

Posted on Jun 02, 2009


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I have a 2003 BMW 325ci. The low coolant light came on, but the coolant level is at normal. The temp gauge has only went into the red once, causing the red light to come on, but it only stayed in the red...

Tough to say without a fault code read out. There was a nice service information bulletin about your instrument lighting up like a christmas tree that lead to an engine harness. Your thermostat could also do that. As long as your check engine light NOT on and your coolant level is good, then you should be ok to drive on it. While a jammed thermostat will sometimes not set a fault, it could over heat your engine. With the vehicle COLD, try opening the expansion tank then starting the vehicle, if you see a small jet of coolant then your water pump is good.

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If your engine shut down, it may be the result of some of the internal parts seizing. Hopefully, this is not the case. Check the oil level and top off as needed to bring the level up and attempt to start the engine and have the vehicle checked by a trusted mechanic.
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My 2004 chevy tahoe reads that it overheating when in idle only. once starts moving goes to normal tempature reading. Why does it do that? Also notice that it has no engine light coming on when it does...

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OBD2 Engine dash indicator light on, engine fan running faster, engine temperature guage drops to normal range when moving and near top of hot zone when car is standing at idle. I'm getting a P1299...

That code means cylinder head over temp and has nothing to do with the coil. Check for proper coolant level first. May also be blocked coolant passages in the cylinder head but unlikely. Or a faulty temp sensor

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I have a 2004 kia sorento. while driving down the interstate at 75mph, i hear a ticking noise. all my gauges read normal. a minute later the ticking gets louder and the check engine light comes on. i...

Does the car have a normal oil level on the dipstick? The behavior is consistent with a broken timing belt except for the part about the temperature gauge going to the top which would indicate overheating or a faulty gauge.

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My 2004 Sebring heater only blows warm air when the car is moving. If I stop at a traffic light or put it in park it blows cold air. Any ideas?

1st check the coolant level. If it's low, what you describe will happen. If level is ok, let me know, and include info on engine temp gauge--how long to warm up, is gauge at warm up low temp range, normal, or hot?

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I have 2003 grand cherokee with 140000 miles that overheats at idle. as soon as i start moving again, the temp goes back to normal.

You have two fan's on your truck, 1 is a fan clutch runs with the drive belt, 2 elec fan motor, with test light and engine running at normal temp, just a little bit above 1/2 way on your temp gauge check voltage at elec. cooling fan harness if you have voltage at one of the two wire's and fan don't turn on, bad cooling fan motor, on the fan clutch after you check voltage at elec. fan motor turn engine off, with your hand spin drive belt fan if it spin's freely bad fan clutch, replace it.Also check cooling level.Hope this was very helpful

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My 2002 Mercury Sable will not shift into gear, will shift out of park, but will not go into any gear.

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Get car ot normal oper. temps and put on level ground. Put trans thru all gears with foot on brake. Put into park, leave running and check level. If level is low, this could be part or all of your problem. If level is fine and trans fluid is not brown or burnt, you have an electronic problem.

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2001 Montana - temp guage does not move - engine check light on -

This can be a sign that your coolant level is not adequate. It can also be a sign that your Temp Sending unit is bad. Oviously the first thing I would do is to go through the coolant level check of pulling the radiator cap (on a cold engine) and adding a mixture of 50% anti-freeze, and 50% distilled water until the coolant fills to the top. I typically run the engine with the radiator cap off until it gets to or close to full operational temperature (typically 190-210). When close you should see that the level has dropped after the thermostat has opened and circulated the coolant. Add additional fluid until the level stabilizes at the top again. Once it stablizes at the top replace the radiator cap. Check and make sure the temp gage is reading normal operating temperature. If you only have a light make sure it is not illuminated. You should know this better as you are used to driving the vehicle. If there is still in indication problem then look at other things like the temp sending unit. This is normally found screwed into one of the cylinder heads with a wire coming out of it. One way to check it is an ohmeter to the connection terminals. They don't cost but $15-60 dollars.
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Oil light came on took a long trip before i checked it car start ticking like a bike with a baseball card in the spokes tick louder when i accelerate

1st , check engine oil level,
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