Help! 1995 V6 Mustang has random overheating problem?
sister's 95 mustang with the v6
the car will randomly overheat sometimes driving down the highway, stop-and-go city traffic or idleing, doesn't have a preference.
it happens maybe 1 in 10 trips, but the other 9 could be for 100 miles with no problems.
it has a very slow leak, i havent noticed any water actually coming out but i notice a drop in the resorvoir from time to time, i dont know if this could be from the car getting so hot it evaporates or not.
i have replaced the thermostat, and i think they had a pressure test done on the radiator and a compression check on the cylinders, however im not sure about either.
it does not produce any smoke out of the exhaust, which is a sign i always use check for head so... i dont know, im not pro. just dont think thats the cause
the biggest mystery for me is why it is so seemingly random?
any ideas?
The compression and the exhaust will have nothing to do with the overheating.
The coolant system is actually a pretty simple system.
Water flows from the radiator, thru the pump....
The pump pushes water into the block.
The block heats the water up and forces the thermastat open...
The water flows back into the radiator, cools and starts the process all over again.
That is all there is to it....literally.
Anything that will cause overheating will be found in this path.
My first thought was that the thermatat was sticking but you said that you changed that.
My second thought was that the water pump is going out.
Might be an issue with the impeller or the seal in the pump. (Why you are losing fluid.)
If I were a betting man though, I would say that the radiator is partially clogged.
Flushing out the system really good might help.
the car will randomly overheat sometimes driving down the highway, stop-and-go city traffic or idleing, doesn't have a preference.
it happens maybe 1 in 10 trips, but the other 9 could be for 100 miles with no problems.
it has a very slow leak, i havent noticed any water actually coming out but i notice a drop in the resorvoir from time to time, i dont know if this could be from the car getting so hot it evaporates or not.
i have replaced the thermostat, and i think they had a pressure test done on the radiator and a compression check on the cylinders, however im not sure about either.
it does not produce any smoke out of the exhaust, which is a sign i always use check for head so... i dont know, im not pro. just dont think thats the cause
the biggest mystery for me is why it is so seemingly random?
any ideas?
It's usually an air bubble in the system. If they did a pressure test, they may have left air in the system, and it will cause your engine to overheat when it hits certain spots in your system.
Could be head gaskets. check your oil.
__________________
Woe to him who builds his palace by unrighteousness,his upper rooms by injustice,making his countrymen work for nothing...Does it make you a king to have more and more cedar?Did not your father have food and drink?He did what was right and just,so all went well with him. He defended the cause of the poor and needy,and so all went well...But your eyes and your heart are set only on dishonest gain,on shedding innocent blood and on oppression and extortion. Jer 22:13, 15-17
Woe to him who builds his palace by unrighteousness,his upper rooms by injustice,making his countrymen work for nothing...Does it make you a king to have more and more cedar?Did not your father have food and drink?He did what was right and just,so all went well with him. He defended the cause of the poor and needy,and so all went well...But your eyes and your heart are set only on dishonest gain,on shedding innocent blood and on oppression and extortion. Jer 22:13, 15-17
Had an overheating problem who was caused by a bad contact on the radiator fan.
slow speed was working but not the high speed. I cleaned contact and not more overheating.
My 94 had an overheating problem to. I had the radiator flushed, pump changed out and replaced all the hoses. Those are the costly way to go. However, this didn't solve the problem for me. It seemed that the thermostats that i kept getting from advance auto would fail after a couple months. So i just yanked the damn thing out. You don't need a thermostat during the summer really. your engine should build up enough heat. the only time you'll have a problem with leaving the thermostat out is during the winter. your heater will take forever in a day to warm up so you will be driving in the cold.
My 94 had an overheating problem to. I had the radiator flushed, pump changed out and replaced all the hoses. Those are the costly way to go. However, this didn't solve the problem for me. It seemed that the thermostats that i kept getting from advance auto would fail after a couple months. So i just yanked the damn thing out. You don't need a thermostat during the summer really. your engine should build up enough heat. the only time you'll have a problem with leaving the thermostat out is during the winter. your heater will take forever in a day to warm up so you will be driving in the cold.
sounds like a sensor problem, or your Tweecer . . .
__________________
Woe to him who builds his palace by unrighteousness,his upper rooms by injustice,making his countrymen work for nothing...Does it make you a king to have more and more cedar?Did not your father have food and drink?He did what was right and just,so all went well with him. He defended the cause of the poor and needy,and so all went well...But your eyes and your heart are set only on dishonest gain,on shedding innocent blood and on oppression and extortion. Jer 22:13, 15-17
Help! 1995 V6 Mustang has random overheating problem? 
