- Joined
- Apr 9, 2011
- Messages
- 165
- Reaction score
- 0
- Location
- Wyoming
- My Car
- 1972 Mustang Sprint Sportsroof
Ok......I have been working with the cooling issues for my Sprint this summer. It sat for 4 years with never having been driven. (351c 4v Q code, Cobra Jet)
When I first got it, it drove perfectly with no over heating. Then after awhile it would over heat all the way to the H on the temp gauge. I opened the petcock valve and nothing drained......I took the valve out and not even a drop lol. I poked it with a screw driver and that loosened it up and it drained. I have flushed it perhaps 5 times with a radiator flush and at least 20 times with straight water. It drives around town and does fine now until: 1) I turn on the head lights and the temperature goes up instantly....then back down soon as the lights are turned off. I tried it 4 times, each time it did the same thing. It also heats up when I hit higway speeds. Other than those two....it doesnt over heat. I am only filling it with water at this time. Any thoughts? Thank you
When I first got it, it drove perfectly with no over heating. Then after awhile it would over heat all the way to the H on the temp gauge. I opened the petcock valve and nothing drained......I took the valve out and not even a drop lol. I poked it with a screw driver and that loosened it up and it drained. I have flushed it perhaps 5 times with a radiator flush and at least 20 times with straight water. It drives around town and does fine now until: 1) I turn on the head lights and the temperature goes up instantly....then back down soon as the lights are turned off. I tried it 4 times, each time it did the same thing. It also heats up when I hit higway speeds. Other than those two....it doesnt over heat. I am only filling it with water at this time. Any thoughts? Thank you
Last edited by a moderator: