Question about 2003 Jeep Grand Cherokee

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OVER HEATING ISSUE!!! 2003 JEEP GRAND CHEROKEE

I have 2003 Jeep Grand Cherokee. Coolant was added a couple of days before. Yesterday, the car started to run hot. Today, It was fine until I turned on the A/C. The A/C started to run hot and the temp started to exceed over 210. What is going on??

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Since you added coolant, now it is time to check the fans. If the fans do come on, than your thermostat needs to be replaced, Should be done every 4 years anyways.

Posted on Jun 03, 2009

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I have a 2000 Jeep Grand Cherokee. The "add


Check bottle coolant level, if this is OK, then you muts to replace the "coolant level sensor".

I hope this helps; also, your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using Fixya, and have a nice day.

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Low coolant, keep eye on temp if you plan to drive it before adding antifreeze, if it never gets hot you are COOKING! the engine, Would recommend checking fluid before driving again.
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Under 2 years or 24,000 miles.

Change the thermostat and gasket first.

Use a 195F with pop-let protection.

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======
To change the fan,the entire protector plastic has to come out.

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Dec 02, 2009 | 2003 Jeep Grand Cherokee

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I have 2003 Jeep Grand Cherokee. Coolant was added a couple of days before. Yesterday, the car started to run hot. Today, It was fine until I turned on the A/C. The A/C started to run hot and the temp...


Check the relay that operates the radiator fan and make sure the fan is coming on. check the compressor itself and make sure that is coming on as well. Relays should be in the power distribution center near the battery. Also make sure that you are not loosing coolant from anywhere.

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Normal coolant temp for 2003 Jeep Grand Cherokee city/highway V6


Your Jeep should have a 192 or 195 degree thermostat. Do u have to add coolant once in a while? If there is no coolant loss, no overheating problem, u shouldn't have to worry about it, it could be the temp. sending unit is not accurate. If it concerns u it would probably be worth it to remove the thermostat, check the temp rating on it(it should be stamped on it). Replace w/ a new one, and see what it indicates for temp then. Good luck, let me know what u find Curt

Mar 13, 2009 | 2003 Jeep Grand Cherokee

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1999 Jeep Grand Cherokee Lerado, low coolant alarm


This same thing happened to mine. It only happened in really cold weather though. I added a few inches more of coolant into the overflow. It fixed the problem. I also discovered if that is not the problem, the sensor in the overflow can go out and a replacement is about 20 bucks.

Jan 11, 2009 | 1999 Jeep Grand Cherokee

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