How to test gpr? And location
#2
Test the one closest to the firewall. That is your glow plug relay. The front relay is the aih. You need to turn the key on and test the voltage at the bug studs. One will have constant power. The other is switched power. If when the key is on, you have the same or very close to the same voltages at each stud than you are fine. If there is a significant difference or no power at the switched stud, bad relay.
#3
sorry to hijack ur thread but quick question for testing gp's what do u set youre Multimeter to? and do u turn the key on or anything.
this is the Multimeter i have.
Walmart.com: Equus 3300 Hands free Digital Multimeter: Automotive
this is the Multimeter i have.
Walmart.com: Equus 3300 Hands free Digital Multimeter: Automotive
#4
Test the one closest to the firewall. That is your glow plug relay. The front relay is the aih. You need to turn the key on and test the voltage at the bug studs. One will have constant power. The other is switched power. If when the key is on, you have the same or very close to the same voltages at each stud than you are fine. If there is a significant difference or no power at the switched stud, bad relay.
Strokin' Away
#5
he meant big studs and i believe 20dcv for the setting the big stud to the left is constant power the one to the right is switched.
#7
heres a link for testing the gpr and gp's
https://www.dieselbombers.com/ford-d...tml#post537961
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95powersmoker (01-16-2012)