FUEL COOLER issues
#1
12-03-2015, 08:08 PM
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Location: Louisville, Kentucky
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FUEL COOLER issues
Had to replace the "radiator" of the fuel cooler, some reason the back part was punched by a bracket behind it. When I noticed it leaking, don't really know how long it was leaking, I topped off the degas every day until I got the part in. Now I replaced it, topped off everything, topped off intake out output hoses from the actuator and the degas.
Now, how do I know if I'm getting any flow or if the pump is still working? it's cooler here right now 40s, and drove it around if 20 mins and all hoses were still cold to the touch.
Any help on this please.
THanks!
Now, how do I know if I'm getting any flow or if the pump is still working? it's cooler here right now 40s, and drove it around if 20 mins and all hoses were still cold to the touch.
Any help on this please.
THanks!
#2
12-04-2015, 12:51 PM
#4
12-05-2015, 09:33 AM
Elder User
Had to replace the "radiator" of the fuel cooler, some reason the back part was punched by a bracket behind it. When I noticed it leaking, don't really know how long it was leaking, I topped off the degas every day until I got the part in. Now I replaced it, topped off everything, topped off intake out output hoses from the actuator and the degas.
Now, how do I know if I'm getting any flow or if the pump is still working? it's cooler here right now 40s, and drove it around if 20 mins and all hoses were still cold to the touch.
Any help on this please.
THanks!
Now, how do I know if I'm getting any flow or if the pump is still working? it's cooler here right now 40s, and drove it around if 20 mins and all hoses were still cold to the touch.
Any help on this please.
THanks!
#5
12-05-2015, 09:41 AM
Elder User
Oh man, this is sooo wrong on so many levels. The fuel cooler recirculation pump is controlled by the PCM which uses fuel rail temperature data acquired from the FRP sensor located at the base of the secondary fuel filter housing. Taking a torch and heating up the turbocharger actuator will overheat the actuator, possibly damaging it in the process and shortening it's life.
#6
12-05-2015, 11:06 AM
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Location: Louisville, Kentucky
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#7
12-05-2015, 11:09 AM
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#8
12-05-2015, 11:14 AM
Elder User
#9
12-05-2015, 04:39 PM
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#10
12-06-2015, 08:48 AM
Oh man, this is sooo wrong on so many levels. The fuel cooler recirculation pump is controlled by the PCM which uses fuel rail temperature data acquired from the FRP sensor located at the base of the secondary fuel filter housing. Taking a torch and heating up the turbocharger actuator will overheat the actuator, possibly damaging it in the process and shortening it's life.
#11
12-06-2015, 09:38 AM
Elder User
I found it!
"The fuel cooling system is required to maintain an acceptable fuel and turbocharger actuator temperature during the engine operation. The fuel system temperature is monitored by the fuel rail temperature (FRT) sensor, which is an input to the PCM. The PCM commands the fuel cooler pump on by grounding the pump when the fuel or turbocharger actuator temperature exceeds the calibrated threshold. The coolant in the system flows from the fuel to coolant heat exchanger to the fuel cooler reservoir, to the turbocharger actuator, to the fuel cooler air to coolant heat exchanger, to the fuel cooler pump and back to the fuel to coolant heat exchanger."
I still however advise against using a torch to heat up the actuator module.
#12
12-06-2015, 09:58 AM
#13
12-06-2015, 11:29 AM
#14
12-06-2015, 02:01 PM
Elder User
Anything over 300*F is un-necessary.
#15
09-02-2018, 04:36 PM
Just completed
Great thread.
A few points from my experience.
- First, download the pdf from Ford_Doctor. Invaluable.
- Second, I could not get the fluid to flow through the entire system by pouring into the overflow reservoir. The fluid stopped at the turbocharger actuator cooler and did not flow down the hose, through the pump, into the radiator, and back up to the fuel cooler. So....
- Third, I pulled the hose off of the front of the turbocharger actuator cooler and poured it through the system. I could hold the hose higher than actuator-cooler so the system filled completely. When it was all balanced I quickly connected the hose back to the front of the turbocharger actuator cooler.
- Fourth, topped the actuator and overflow. I could tell the fluid was in the radiator as the top (now inverted) was cool to the touch.
- Fifth, turned it on and it puked out just like described in the pdf.
- Sixth, I used a half gallon of 50/50 gold, give or take to fill the system . Previously only could put in a half cup or so.
Just a few points for those that are as dense as me.
Thanks everyone for the previous input.
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