I am able to keep temps at 210 max during 95 degree ambient with heater running and top down - will do new radiator next time I get extra $
Help on normal operating temps on daily driver OEM 5.0
- Thread starter MrPerfect2
- Start date
Blown88GT
Founding Member
What is a closed loop control system and how does it work?
Closed loop control systems automatically regulate desired states in systems with no human interaction. Learn how they work, pluses and minuses, and use cases.
What is a closed loop control system and how does it work?
Closed loop control systems automatically regulate desired states in systems with no human interaction. Learn how they work, pluses and minuses, and use cases.whatis.techtarget.com
From what I read a closed loop system takes human intervention out of equation - since the driver does not input any information ( timing , air temps , water temps , A/F ratios ect... ) I would have to say each “ mode “ the car operates in is a closed loop system - during the initial start up of car , until it gets to a predetermined operating point , the car operates in a “ safe mode “ closed loop and ignores the input information from various sensors and operates in a pre-programmed setting from the ECU . Does this sound correct ?
Ok - so what you are saying is 225 is bad on highway ? My question is why Ford put 270 as danger on dash ? And why is 225 bad ? Changing radiator is fairly easy and cheap enough , so I will try that first -
225 is not the end of the world.
But typically when a cooling system is functioning correctly, the temp will go down on the highway.
I'm not specifically telling you to buy a radiator, just saying it sounds odd for it to run cooler in traffic than on the highway.
Does the temp while cruising go up then drop suddenly, then go up again? If so, that's air or low coolant.
If you do buy one, buy a good one. Nothing wrong with more cooling capacity than you need. It's one of the few places i'm a big fan of overkill.
As for the 270, i'd be crapping my pants if my gauge went that high.
But typically when a cooling system is functioning correctly, the temp will go down on the highway.
I'm not specifically telling you to buy a radiator, just saying it sounds odd for it to run cooler in traffic than on the highway.
Does the temp while cruising go up then drop suddenly, then go up again? If so, that's air or low coolant.
If you do buy one, buy a good one. Nothing wrong with more cooling capacity than you need. It's one of the few places i'm a big fan of overkill.
As for the 270, i'd be crapping my pants if my gauge went that high.
No sudden swings in temp - I burped like described - a new radiator would not hurt anything and mine may be too old anyway - but .... why still perplexed as why did the engineers at Ford put 270 as danger ?
Blown88GT
Founding Member
No. That's only part of it. The "loop" is input to output & back to input in a loop, etc. The inputs can change the outputs & the outputs can change the outputs via some of the inputs. A/F is an output.
In open loop, the outputs cannot change the outputs, i.e. the loop is "broken" or open.
Negative feedback in an amplifier would be an example of a continuously operating closed loop system.
I wouldn't think too much of it.
The stock gauge is pretty much useless.
Most of them go up and down when you turn on the headlights...
By having a real gauge, you are off to a good start.
Lol , life was much simpler just “ not knowing “ actual #s , lol - like the movie Matrix - but ... I had to know the truth , lol
Thanks - it is a bit confusing but I get what you are saying - btw , when check engine lights come on cars ( not just Foxes ) does that force system to run in open loop ? Or could it be say , partial open and partial closed
Btw - these cars are awesome to drive stock , I can only imagine the feeling of having some of your guys cars and cruising in them - my reason for keeping stock was based on my experience with car stereos , lol - I was always seeking the best sound in music , some bands sounded better acoustically then others - it got to the point where I enjoyed the sound more then the songs ( I could never really relax and enjoy the music , always wanting to fine tune ) - I did put a small old school sub system in this car - a car with no tunes has no soul , lol
You are going in the right direction replacing the old radiator.
also check to make sure the lower hose is not collapsing at higher rpms.
the 270 mark on the stock gauge is just the engineers way of inaccurately say'n 'your done'.
also check to make sure the lower hose is not collapsing at higher rpms.
the 270 mark on the stock gauge is just the engineers way of inaccurately say'n 'your done'.
It has new lower hose - are they suppose to have a spring inside to prevent collapse ? How do you check for collapse under high rpm
