Are you sure that you didnt put the freon into the fuel line as there is a cap and fitting almost the same as the air conditioning. Check your oil level and check google if there is a low-oil cut off switch on that particular vehicle and if so bypass it to see if it will start. Sounds like an electrical issue more than anything perhaps wires burnt and touching something near the exhaust. Not sure if the two are related.
SOURCE: the engine seems to overheat and the internal heater blows cold
First thing to do is check the coolant level. Low coolant can cause this. Next is check the thermostat .
SOURCE: Pontiac Grand Am SE running hotter than normal
check the fan switch and make sure the cooling fan is coming on.
SOURCE: air condition blows hot air but it has freon
You may have created an over charged condition and at this point the a/c compressor will cut off on high head pressures. This can be verified by installing gauges to the systems high and low side service taps and reading the pressures.An overcharged system will start the compressor briefly but soon cuts off once pressure goes to 350 - 400 lbs on the high side. Acceptable pressures for this system should be no greater than 250 high and low suction should drop to 40-50 psi.You might recover the charge and evacuate the system,then try bringing the charge back to proper level.A sight glass in the reciever drier really helps determining proper fill.Once all bubbles have dissipated from the sight glass during charging ,one should stop at that point to avoid overfilling.Too much freon is worse than a low charge especially in hot ambient conditions....
SOURCE: 2001 pontiac bonneville SSEi 3.8 l supercharged.
I have a 2000 Bonneville - I had a problem with the car stalling out - then it did not want to start back up. (When it did it would idle up and down and then die) I changed out the mass air flow sensor - now I have not had a problem. Good luck with it.
SOURCE: adding freon to the air conditioning
look for the thick pipes vs. the thin pipes and a quick connector that goes on to the hose that fills the r134a via a can of freon.
Or, do you mean, where is the freon leaking out of? The freon leaks out of o-rings, seals, and possibly the compressor.
I had a compressor changed in my 1990 Cadillac Deville because it was leaking there. This is a common problem on older cars.
Good luck.
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