https://iihs.net/fsm/?d=40&f=Wipers and Washers.pdf
I believe that your problem is probably coming from the Smart Junction Box in the passenger footwell.
There have been many cars that had a leaky cowl and the water runs down into the SJB causing many problems.
As you can see one of the fuses...
What is the exact issue with the vehicle?
Did it catch fire?
Is it some local shop that is telling you this or the Ford dealer?
You should check is if any of the relays or wires in the fuse box melted.
Disconnect the battery and separate the top and bottom halves of the fuse box and look for...
Saleen series VI blower. 2.95" Pulley
Tuned by JDM Engineering.
Ported by me.
60LB injectors GT500 Throttle body.
JBA Long tube headers catless H pipe, Magnaflows.
Gordsford HE with twin SPAL fans.
Saleen twin fuel pumps.
Afco Radiator Meziere electric water pump.
Currie 9" rear end with 35...
Wrong.
39psi is base rail pressure.
You should have that with key on engine off.
Assuming you have 24”Hg of vacuum at idle you need to subtract the vacuum (negative pressure) from the equation.
1”Hg= 0.491psi
For our use this is close enough to 0.5 that we can say subtract 1 psi for every 2” Hg...
I've used the OEM tool made by OTC.
I also had less than stellar results with a junk copy off of Amazon.
I'm ordering the ST-101 from freedom racing.
https://www.freedomracing.com/3v-valve-spring-compressor-303-1039-alt.html