When we flushed it, and revved it up the coolant would suck down out of the reservoir and into the radiator. We also had no movement until the thermostat opened so we knew that the new one was working. Pretty sure that the coolant is cycling through well. We ram a hose from the top of the engine out the bottom and it flowed freely there and also flowed through the radiator down out of the little petcock thing. Im either buying a tool to check for a blown gasket or taking it to ford to let them check it out tomorrow. Also going to make sure i get all of the air out of the cooling system tomorrow. Im trying to replace everything i can before i go tearing the engine apart for the head gasket... Btw, I am currently driving a 3.8l Mustang with a 5 speed which is making me hate life right now.
Did you drill a hold at the top of the thermostat when you installed it? You could have an air pocket. One air pocket an whereever it's located temps will rockets through the roof. Also I know it's an ever debated topic but installing a lower temp thermo stat doesn't necessarily means it'll run cooler. That's the logic but it just mean that it'll open twenty degrees cooler essentially giving you a free flowing unit but unles you have different fan that'll cool the radiator faster it wont help because the coolant is flowing through the whole system too fast before the radiator can cool it before it reenter the system. I know it seems like backward thinking but it's a thought...
I had a similar issue with my mustang, installed a 170 tstat an thought it'd work miracles but made it far worse until I installed electric fans that could keep up
Alright. Well i finished up with the combustion gas test and the conclusion was... Blown head gasket. If any of you guys know any good after market parts to put it please let me know ill be open do doing more things than just making it run again. I'm looking at cams and headers right now...
i over heated my aurora numerous times to maximum and never blew a head gasket, sounds like you might have air in the system after changing out all the components i dont remeber if fords have bleed spot or not if not just leave the cap off the radiator and let it run try and work the air pockets out if that doesnt help check for pressure leaks if this in the end does nothing then id go the route of headgasket/ warped head
I bought a tester thing at o'reillys and put it on my radiator overflow tank. Then you hook up a tube from the tube to a vaccuum line and it sucks air from the overflowtank into the tube. the thermostat opened and the tube started to bubble up. The fluid changed from a blue to a yellow indicating a combustion leak, therefore a head gasket. Ive tried everything. Even tried getting the air out of the system and i dont know what else to do. I guess i can try again today and triple read the directions to see if im doing it right, but as of now im planning tearing into this project of repairing my engine...
Damn.. i was just reading some other posts and it said to check the fan clutch to see if it was working properly but i dont really know how mine wouldnt be. I'll probably check it and then test again to be extra sure. Does anyone have any other possible ideas of what it could be!?!? I really dont want to have to replace the head gaskets and this still continue to happen...
fans working. pressure test for system leaks radiator hoses and thermostat allowing flow water pump working not missing fins radiator cap holding pressure. that's bout it Sent from my LS670 using Tapatalk
You can also pull the plugs and turn it over and see if water sprays out. Any water in the spark plug hole=blown head gasket. If you pull the heads make sure you have them gone through to make sure they are flat and that you didn't bend a valve etc. IF you want to get a little more power get shorty headers, cams, and have the heads cleaned up and port matched. You could go the expensive route and put some Patriot Performance heads on it but they are $1400 a set plus cams and springs. Plus an aluminum 4.6 intake with 5.4 adaptors
