Ok so within the past week or so I have noticed my low coolant light coming on. I can't seem to find the leak anywhere. But the other day I was driving and I had to pull over because I started running hot and antifreeze was shooting out of my radiator cap. The cap is brand new I replaced it when I replaced my radiator. I'm thinking its because there was so much pressure on it?! I can smell antifreeze when the ac/heat was running....which makes me think it could possibly be my heater core? But I don't have a floor full of antifreeze? Which brings me to my next point now my ac panel won't work so I can't control ac or heat. I also have an electronic dash which I can control with buttons to check (fuel range,coolant temp,oil temp,etc,etc.) this will no longer work and it will blink SYS 3 times every 30 seconds or so. I'm wondering if it is my heater core leaking and possibly leaking on ac units or controls? How can I tell if its the heater core and how difficult is it to replace? Prob a pain since everything besides alternator is.And last but not least I smelled something burning today so I pulled off and it was my belt the ac compressor clutch was not moving while the car was running. Could this just be my clutch and not the compressor or am I going to have to fork it up? Thanks for any help

 

Any help?

 

Psssst
You wont get any help unles you fill out your profile and tell us what the car is

BTW your problem could be
Radiator cap, leaking radiator, clogged radiator, bad hose, bad thermostat (no a 160 wont help), heater core, and a few other things
I would recommend a Field Service Manual for your car whatever year it is and follow the trouble shooting guide

 

I am going with thermostat for problem 1 , pull codes for problem 2 since that is why sys is flashing, bad clutch on the AC for problem 3 and the Sys and pulling I bet will fix the auto HVAC
JMHO

 

Sorry I have a 92 c4 w/ lt1 stock. No modifications to the car. So you think that replacing the ac clutch will do the trick rather than the whole compressor? There is some black residue around the ac compressor as well??? I just got a new pressurized radiator cap, new water pump, new radiator (all ac delco.) I can't tell where the leak is at? But like I said I can smell it through the vents. How can I tell if its the heater core? And why would my ac panel no longer work? Since there is a problem with the clutch or ac compressor would that cause the ac panel to stop working? The new water pump came with a 180 degree thermostat. I just replaced it about 3 months ago.