1989 GT. Had the car 2 years now. DD. Replaced the heater coil when I bought it. Engine always ran cool with it's 180 degree thermostadt but heat worked well when car finally warmed up.
4-5 weeks ago I started noticing when I would "get on her" a little here and there the engine was heating up more than normal. I also noticed a razorblade slice in my lower radiator hose after seeing my first leak on this mustang, replaced it. 2 weeks ago when I got on her a little and arrived home the engine had a boiling sound and antifreeze was spewing out of the radiator overfill tank somewhere.
I replaced the thermostadt last weekend. Now it has a 190 degree thermostadt installed. I bought the newer lock-open thermostadt. Now the engine gets warmer and heats up in the morning much faster which is nice. But two nights ago, I got on her a little to test her out and got home to more water/antifreeze all over the ground boiling out the radiator overfill somewhere.
When I replaced the thermo the water appeared a nice color green, not too dirty. A year ago I had drained the radiator and refilled with 50/50.
The PO had an after market aluminum radiator installed. It's not a big one, it's skinny but same width/highth as stock. It still has original fan shrowd installed.
It still has original water pump installed and mechanical fan. I have a new electric fan on the way now. I am wondering if you guys think it's the water pump? This car only has 77,000 original miles BTW. Most components on the engine are stock still.
Mods include but not limited to:
Vortec V2 SC
Ford Racing Wires and Plugs
Aluminum radiator
BBK headers and flowmaster thunder exhaust system - X pipe
As far as engine that's about it. I am assuming my water pump is going out. I don't see water leaking from engine or heads. It's only boiling out when I get hot and heavy on her. And it seems to be coming out somewhere from the overfill tank side of things.
Another thing I wanted to mention is the overfill tank. It's super dirty. I dont see dirty water in the radiator cap, or when I changed the thermo, but that overfill plastic tank is super nasty. The tube with sensor is pretty bad. I wipe it off usually when I pull it out everytime but is this dirty because everything is plastic and it's attracting all the dirt and therefore keeping it out of the engine?
Thanks in advance,
Tom
4-5 weeks ago I started noticing when I would "get on her" a little here and there the engine was heating up more than normal. I also noticed a razorblade slice in my lower radiator hose after seeing my first leak on this mustang, replaced it. 2 weeks ago when I got on her a little and arrived home the engine had a boiling sound and antifreeze was spewing out of the radiator overfill tank somewhere.
I replaced the thermostadt last weekend. Now it has a 190 degree thermostadt installed. I bought the newer lock-open thermostadt. Now the engine gets warmer and heats up in the morning much faster which is nice. But two nights ago, I got on her a little to test her out and got home to more water/antifreeze all over the ground boiling out the radiator overfill somewhere.
When I replaced the thermo the water appeared a nice color green, not too dirty. A year ago I had drained the radiator and refilled with 50/50.
The PO had an after market aluminum radiator installed. It's not a big one, it's skinny but same width/highth as stock. It still has original fan shrowd installed.
It still has original water pump installed and mechanical fan. I have a new electric fan on the way now. I am wondering if you guys think it's the water pump? This car only has 77,000 original miles BTW. Most components on the engine are stock still.
Mods include but not limited to:
Vortec V2 SC
Ford Racing Wires and Plugs
Aluminum radiator
BBK headers and flowmaster thunder exhaust system - X pipe
As far as engine that's about it. I am assuming my water pump is going out. I don't see water leaking from engine or heads. It's only boiling out when I get hot and heavy on her. And it seems to be coming out somewhere from the overfill tank side of things.
Another thing I wanted to mention is the overfill tank. It's super dirty. I dont see dirty water in the radiator cap, or when I changed the thermo, but that overfill plastic tank is super nasty. The tube with sensor is pretty bad. I wipe it off usually when I pull it out everytime but is this dirty because everything is plastic and it's attracting all the dirt and therefore keeping it out of the engine?
Thanks in advance,
Tom