1999 Concorde LXI 3.2L Engine with 150,000 miles

[quote:759d529117="jacomonguy"]After driving my car for about 10 to 20 minutes my car starts spilling the coolant thru what i think is a breather hole in the reserve tank. The temperature gauge doesn't marks the engine as "hot" when the car does it, though after it does it starts overheating. i replaced the thermostat as i thought maybe it was stuck on closed since the coolant was coming back to the reserve tank boiling hot. the radiator cap is ON the reserve tank and there is no other way to fill up the coolant, but thats not where the coolant is spilling from. I have a little device that measures temperatures with a laser and after driving my car for a few minutes i tried it and it said that both hoses coming in and out of the radiator were about the same temperature 190+....i found unusual that the thermostat was on the hose that comes from the radiator to the engine, on the bottom right behind the alternator, rather then the one that comes from the engine to the radiator, unless I'm mistaken and it flows up thought i don't think that makes any sense. there is a valve to " purge " the air in the engine, its on top where the hose from the engine goes to the radiator. Some times after it spills all the coolant i fill it up and it works fine for a bout a week or so then it does it again....i took it to the mechanic twice and they don't fine anything wrong with it, since it appears to work fine while they have it and continues to do so for a bout a day or tow after i get it back, but then again it starts acting up...i really don't have a clue any more and i would really, really appreciate what ever help you guys could give me...
Thanks so much.[/quote:759d529117]

Try bleeding the air out again follow below: If it continues then we'll check the entire cooling system 1x1 till we find the cause.

Bleeding cooling system:

Always bleed air from cooling system after replacing coolant. Set heater for maximum heat. Remove radiator cap. Loosen drain plug and remove drain bolt (if equipped) from engine block. Drain coolant reservoir. Fill coolant reservoir to MAX mark with 50/50 water-coolant mixture. Loosen bleed bolt and fill radiator up to base of filler neck. Close bleed bolt when coolant flows out without bubbles. Tighten bleed bolt. With radiator cap removed, start and operate engine to normal operating temperature. Add coolant if necessary and check for leaks.

Try bleeding the air out again follow below: If it continues then we'll check the entire cooling system 1x1 till we find the cause.

Bleeding cooling system:

Always bleed air from cooling system after replacing coolant. Set heater for maximum heat. Remove radiator cap. Loosen drain plug and remove drain bolt (if equipped) from engine block. Drain coolant reservoir. Fill coolant reservoir to MAX mark with 50/50 water-coolant mixture. Loosen bleed bolt and fill radiator up to base of filler neck. Close bleed bolt when coolant flows out without bubbles. Tighten bleed bolt. With radiator cap removed, start and operate engine to normal operating temperature. Add coolant if necessary and check for leaks.[/quote]


I did what you told me to do and my car doesn't spill the coolant on regular driving conditions anymore. However it still does it if i turn on the A/C, and only after i turn the the car off. Can this be taken care of or should i resing myself to the fact that ill live without A/C? lol... again, i would really apretiate all the help you guys can provide.

[quote:786f1f5a17="jacomonguy"]Try bleeding the air out again follow below: If it continues then we'll check the entire cooling system 1x1 till we find the cause.

Bleeding cooling system:

Always bleed air from cooling system after replacing coolant. Set heater for maximum heat. Remove radiator cap. Loosen drain plug and remove drain bolt (if equipped) from engine block. Drain coolant reservoir. Fill coolant reservoir to MAX mark with 50/50 water-coolant mixture. Loosen bleed bolt and fill radiator up to base of filler neck. Close bleed bolt when coolant flows out without bubbles. Tighten bleed bolt. With radiator cap removed, start and operate engine to normal operating temperature. Add coolant if necessary and check for leaks.[/quote:786f1f5a17]


I did what you told me to do and my car doesn't spill the coolant on regular driving conditions anymore. However it still does it if i turn on the A/C, and only after i turn the the car off. Can this be taken care of or should i resing myself to the fact that ill live without A/C? lol... again, i would really apretiate all the help you guys can provide.[/quote]

What do you have? Electric or Clutch Fan

Electric fan is it coming On? Fan clutch=When engine is warmed up-shut it down-spin the fan does it spin easily.

Pressure test the cap

What do you have? Electric or Clutch Fan

Electric fan is it coming On? Fan clutch=When engine is warmed up-shut it down-spin the fan does it spin easily.

Pressure test the cap[/quote]


Its an electric fan, i checked it before when the car was parked after a while it does start. is there anything i should look for in particular? is it supposed to start a a certain specific point? is it supposed to stay on for a certain amount of time??