First confirm that the engine IS actually overheating - steam, no heat to the interior etc. Sometimes a temperature sensor will fail and give a misleading 'overheat' reading on gauge. For that matter sometimes the gauge can fail and give the same misleading reading. Check that the cooling fan comes on when the engine temperature starts to rise above 'normal'. If not check (in order) fan fuse, fan relay, fan sensor, fan. Real overheating is caused by a lack of coolant AND/OR lack of coolant flow. Modern cooling systems are 'closed'. In other words there should be little or no loss of coolant. If the level is significantly low you have a leak....either external or internal. With the coolant topped up to the correct level and the radiator cap on, run the engine and look for visible leaks...hoses, valves, radiator etc. Internal leaks, eg. head gasket will usually be accompanied by white exhaust smoke (steam), hard starting, rough running and bubbles in the expansion tank. Sometimes, though NOT always, you will find the engine oil has a milky look and/or engine oil will be mixed in with the coolant.
Lack of coolant flow can be caused by anything in the system that causes an obstruction......in order of common occurance......thermostat stuck closed, radiator blockage, heater core blockage, water pump failure. One last point. because of design considerations many vehicles have the radiator mounted at a different level than the uppermost coolant passages in the engine thus trapping air in the coolant passages. In short the system must be bled of air in order to properly fill with coolant. Such systems will incorporate bleed screws usually in either the top/side of the radiator, the top hose, the thermostat housing and sometimes in all of these points. To bleed out the air do NOT run the engine as you fill the radiator. Instead, open all bleed screws. As you fill the radiator coolant will run out of one or more bleed points. Close this bleed point(s). Continue to fill until coolant escapes from the next bleed point then close that one. Proceed until coolant has escaped from ALL bleed points then continue to fill to the correct level. The expansion tank will have minimum and maximum level markings. Fill only to the minimum level mark with the engine cold.
went to the libary, i been tring eveything with this. put coolent in to day and bleed the system, alldata look up could it be trs sensor. it said could give a false reading, the only code i got from the key is a map sensor what does that have to do with the car overheating? dont have the money rightnow to take it to a shop. got a hayes book on the car it could be anything. do you have any ideals. take the relays out the fan come on, can i drive the car like that until i have the money to get it to a shop it will be a couple of weeks. its real cold out now. the is heat in the car, the temp gage goes half way then it will overheat. i will try anything any ideal? let me know if you want to talk to me call me on my cell at 440-622-5695 my name is mark thanks
Summary: VEHICLE DESCRIPTION: PASSENGER VEHICLES. A NUMBER OF INCORRECT DRIVER SIDE SEAT MOUNTING BOLTS WERE INSTALLED INTO VEHICLES.
Consequence: IN THE EVENT OF A CRASH, THE BOLTS MAY NOT PROPERLY SECURE THE SEAT AND COULD CAUSE INCREASED INJURY TO THE DRIVER OF THE VEHICLE.
Remedy: DEALERS WILL INSPECT THE SEAT MOUNTING BOLTS AND THEN REPLACE THE BOLTS IF NECESSARY. OWNER NOTIFICATION BEGAN FEBRUARY 5, 2001. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT DAIMLERCHRYSLER AT 1-800-853-1403.
Potential Units Affected: 20
Notes: DAIMLERCHRYSLER CORPORATION 968 Recall ID # 00V299002 - ENGINE AND ENGINE COOLING:ENGINE
Model Affected: 2001 CHRYSLER SEBRING
Summary: VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE HARNESS FOR THE CRANKSHAFT POSITION SENSOR COULD COME IN CONTACT WITH A NEW PROTECTIVE SHIELD CAUSING A GROUNDED CIRCUIT.
Consequence: PROLONGED WIRING HARNESS CONTACT WITH THE HEAT SHIELD WILL CAUSE THE WIRING INSULATION TO WEAR AND EVENTUALLY TO GROUND OUT. THIS COULD CAUSE THE ENGINE TO DIE-OUT, INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL RE-ROUTE THE CRANKSHAFT POSITION SENSOR HARNESS.
Potential Units Affected: 554
Notes: DAIMLERCHRYSLER CORPORATION Recall ID # 00V366000 - CHILD SEAT
Recall Date: NOV 09, 2000
Model Affected: 2001 CHRYSLER SEBRING
Summary: VEHICLE DESCRIPTION: CERTAIN PASSENGER VEHICLES, PICKUP TRUCKS AND SPORT UTILITY VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FMVSS NO. 225, "CHILD RESTRAINT ANCHORAGE SYSTEMS." SOME OF THE OWNER'S MANUALS FOR THESE VEHICLES ARE MISSING INSTRUCTIONS THAT PROVIDE A STEP-BY-STEP PROCEDURE, INCLUDING DIAGRAMS, FOR PROPERLY ATTACHING A CHILD RESTRAINT SYSTEM'S TETHER STRAP TO THE TETHER ANCHORAGE.
Consequence: IN THE EVENT OF A CRASH, THE CHILD SEAT MAY NOT BE PROPERLY ATTACHED INCREASING THE RISK OF INJURY TO THE CHILD.
Remedy: OWNERS WILL BE PROVIDED WITH AN ADDENDUM TO THE OWNER'S MANUALS.