luillo
forum member
So, ever since I bought this car, I have been restoring it and dealing with cooling issues. The car is required love and still in great condition. I recently got a tune only from Lund because I wanted the nGauge to monitor some parameters in the car. The situation I am investigating now is the following.
Driving the car on 87-91 deg Florida heat, the car ECT goes all up to the 230 on traffic, and as soon as I get to speed, and air flows, it drops down to 194 deg. The engine feels extremely hot and some places are way too hot to touch in the bay and even the chassis of the car.
The high-speed fan works when I jump pin 30 to 87 highlighted in yellow. On that same relay section, pin 85 highlighter in red, has nothing to go off: no ground and no positive. I am not sure if the PCM supply the ground for the loop to close from pin 86 to 87 or what’s going on. What I know is that if the power runs from pin 30 to 87 the fan will turn on.
The low-speed fan: When I jump pin 30 to 87 highlighted in blue, the fan won’t turn on, but the ground is present on pin 85 highlighted in green for that relay area.
I am not sure if it is a matter of cooling fan operating procedures and everything is good or if indeed, I have a fan issue. I checked all the connections under the relay box (SJB) and no burned plugs or cables. I checked the fan plug and all looked good. If any of you Ford family knows something, I might be missing please let me know. I need to look for system operation to see if all I might need is a tune update to have the fans work better.
Driving the car on 87-91 deg Florida heat, the car ECT goes all up to the 230 on traffic, and as soon as I get to speed, and air flows, it drops down to 194 deg. The engine feels extremely hot and some places are way too hot to touch in the bay and even the chassis of the car.
The high-speed fan works when I jump pin 30 to 87 highlighted in yellow. On that same relay section, pin 85 highlighter in red, has nothing to go off: no ground and no positive. I am not sure if the PCM supply the ground for the loop to close from pin 86 to 87 or what’s going on. What I know is that if the power runs from pin 30 to 87 the fan will turn on.
The low-speed fan: When I jump pin 30 to 87 highlighted in blue, the fan won’t turn on, but the ground is present on pin 85 highlighted in green for that relay area.
I am not sure if it is a matter of cooling fan operating procedures and everything is good or if indeed, I have a fan issue. I checked all the connections under the relay box (SJB) and no burned plugs or cables. I checked the fan plug and all looked good. If any of you Ford family knows something, I might be missing please let me know. I need to look for system operation to see if all I might need is a tune update to have the fans work better.