Overheating can not tell were it is leaking from sounds like the top half of engine help!!!

The a/c issue along with this over-heating could just be coincidence with the a/c as the a/c and cooling system of the vehicle are "two separate systems". the over-heating problem is more than likely a hose leaking and under heated pressure, it is "spraying" on the passenger side. I'm sure you are having to replenish the coolant "water" very often from the descriptions. If you do in fact have a leaking hose and haven't had any hoses replaced periodically I would then replace all coolant hoses and use half coolant and half water. I wouldn't use the half and half pre-mix as that jilts you out of coolant,A good number of cooling systems use 1 1/2 gallons so use 75% of the gallon of coolant and top off with water. I hope this helps you in your problem. Jesus loves you, John 3:16-17 (KJV)

Sounds like you might have an air locked system. Look around the top of the intake for a bleed port that will allow the air out of the engine. Most newer vehicle designs have the radiator placed lower than the engine and makes it hard for the air to move out of the engine. That is why there is no heat, the heater core is still empty.

Connie, Were the radiator,water pump and thermostat replaced to try and fix the over heat issue or as maintenance. Engine overheating can be caused by a lot of things, Leak in cooling system, air in system, bad rad. cap, slipping belt, faulty thermostat or installed upside down, faulty water pump, plugged radiator (inside/outside), collapsing rad hose, faulty cooling fan, leaking head gasket, sludge plugging engine water passages, poorly tuned engine, etc..
Take into a good shop for diagnoses and estimate for repair. Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
How to Troubleshoot an Overheating Engine
Steve Litt Overheating Guide
Diagnose Engine Overheating Auto Repair Help
How to Troubleshoot an Overheating Engine DoItYourself com

see this causes and remedies, you can have overheating by internal leak or external leak:
1) transmission oil cooler is leaking , 2) loose cylinder head gasket 3) engine block cracke 4) cracked cylinder head or engine block bore 50 oirl cooler is (inside radiator) is cracker.

2) external: a) leak at the hose connection b) water pump c) core plugsd) thermostat housing e) cilynder head.f) gasket cylinder head.

God bless you

check top radiator hose goes to thermostat housing sound like its leaking if your engine leaking from left driver side on top of engine it has to be top radiator thermostat hose leaking.wait until engine cool down replace top radiator hose see if coolant leaking still occur if so you could have radiator leak.

When your not feeling heat coming from the heater it usually means that the coolant level is too low in the radiator. It sounds like you have a coolant leak somewhere which is causing your overheating problem. Fill your radiator and let the engine run for about a half hour with the radiator cap on tight. Then turn off the engine and check for any leaks under the van. If you don't see any leaks under the van then see if the carpeting is wet on the passenger side of the vehicle. If the carpet is wet and it smells like anti-freeze you have a heater core that is leaking. I hope this helps you. :)

sounds like you had either a bad thermostat or a head gasket leak, either way if it overheated bad enough to stall the engine..damage was deffinitly done,check the oil to see what it looks like..if its milky you will need an engine, if its silver...you will need an engine,if it looks fine try replacing the thermostat,you might get a few more miles out of it if it was the thermostat but most likely not,good luck,hope this helps

Hi! most likely that you may have a bad sensor or a vacuum leak by the engine. Start the ignition and safely check under the hood, check the engine from top to bottom and see or hear some unusual sound noise, you may also check infront of the rediator, sometimes the leak start there and it gets transfer to the AC compressor. best of luck.

Glad to help.
Ginskie.

Sounds like you have a faulty head gasket or maybe a cracked head.This can cause overheating and the check engine light to come on.The code for the o2 sensor is probably caused by coolant getting into the exhaust system and coating the sensor.The coolant fan may work but it cannot remove enough heat from the rad to make the engine cool off.Try some engine coolant stop leak to see if it will help.This maybe only a temperary fix.Let me know if you need more.MOE

By the sound of it your light is telling you a lie and theres nothing wrong with the engine as if your not loosing any water and engine isent overheating then just get another sensor fitted.
But if you are loosing water or the engine is overheating ,then check the radiator with engine turned off,, put your hand on the top half of the core and then the bottom 1/2 of the rad core and if the top 1/2 is cold and the bottom is hot then you have either the thermostat is faulty or the radiator is dirty inside and maybe also out side in the fins.
Let me know how you get on . RON