Please Help With 5.0 Overheating Issue

[Zax90]

Hello and thank you for having me and also thank you for the future help and Anwsers. Today I was driving down to pick my GF up from work and out of no where my belt snapped.... But I only noticed because the alternator voltage dropped completely and the temp gauge started to go up. I pulled off to the side of the road and popped the hood to check out what happened and I found the motor bay covered in antifreeze... I then shut the car off immediately after that... I had a friend bring me down to the parts store so I could get a new belt and I installed it and filled the radiator back up. But now it's running rough. I checked the oil to make sure that it didn't blow the headgasket and it wasn't mixing. I'm truly stumped and frustrated. If anyone can help me I would be truly grateful.

It's a 94 mustang 5.0 331 stroker with the explorer upper and lower intake and GT40 heads. B303 cam and cold air intake

 

[General karthief]

First your gf needs to find a job thats not so far away, second b cams are know for being hard on thermostats.
No, seriously, first check your distributor cap, it way be wet inside causing misfire, how old are the plug wires? The antifreeze may have affected them, how old are the plugs? Over heating could have effected them too, is it still over heating? Extreme heat and antifreeze can effect old rubber hoses, plastic lines and wiring so give it a good once over just to make sure, that includes the thermostat, and check for codes, let us know what you find or don't find and we can go from there.

 

[Zax90]

First your gf needs to find a job thats not so far away, second b cams are know for being hard on thermostats.
No, seriously, first check your distributor cap, it way be wet inside causing misfire, how old are the plug wires? The antifreeze may have affected them, how old are the plugs? Over heating could have effected them too, is it still over heating? Extreme heat and antifreeze can effect old rubber hoses, plastic lines and wiring so give it a good once over just to make sure, that includes the thermostat, and check for codes, let us know what you find or don't find and we can go from there.

Thanks for the quick response man!
She only works about 5 miles away lol
I'm going to check the plugs in the morning and let y'all know. The plugs are about 3 months old, wires are a week old "changed the plug wires because of the sparkplug boot was straight and about 75% of them melted against the heads and caused a severe misfire" the car gets up to temp faster then before it usually takes about 3-5 mins to get up to the normal temp where now its about 2ish. I'm more then likely going to change the thermostat just to be safe and probably flush the cooling system as well because the fluid looks to be kinda rusty looking. Again thanks for the reply!

 

[Mstng93SSP]

Why did the belt snap? Could your water pump be seized which caused the overheating and the belt snap? Make sure everything is turning freely by the belt (water pump, ac, tensioner etc.)

 

[Zax90]

I made sure that all of the pulleys moved easily. I found that the power steering pump is a little tight and it is humming a bit. I also found that one of the alternator bolts snapped and tilted the pulley....

But I checked the water pump and it moved smoothly.

 

[mikestang63]

now that you found out why the belt snapped.....
when you overheat the system that bad it is always a good ideat to change the thermostat, the cap and burp the air out of the system
is there any oil in the coolant or vice versa
if it continues to overheat. rent both a coolant pressure tester for leaks and an exhaust gas coolant testure and pray the fluid does not turn green