Hi,

I'm pulling a P0403 EGR circuit fault on a 2004 v6 Escape.

Last night I changed out the EGR solenoid. Cleared the code and drove around for a while, got on the highway and cruised for a few miles and everything seemed fine. Turn the car off and back on and the code showed up again.

My next step will be to check the electrical connection to the solenoid.

Please bear with me as I don't do a lot of auto repair.

With my multimeter I will check for 12 volts. But from what I understand I can not check ground as the PCM sends ground to the solenoid to activate it.

How should I check the electrical connections to the EGR solenoid?

 

Exact same thing happened to me about a year ago.
https://www.ford-trucks.com/forums/1...l-circuit.html

To check the ground you would need your volt meter hooked to a positive and a long wire to go from the meter inside the truck to the plug of the egr solenoid. Either an alligator clip or pin to connect to the plug and then drive around. Eventually you will get a voltage reading if it works.

I never got this far on mine. I gave the ground wire a tug and it was so bad it just came apart.

 

Ok, thanks.

I wonder can I just connect the solenoid ground to battery ground to energize it? That way I know everything after the solenoid is operating properly.

Can i check solenoid power plug ground to battery ground to check continuity to check the wiring?

 

You should be able to connect the solenoid ground to battery ground, if the computer provides ground when it wants to energize the solenoid. Ground == ground all around...

Continuity check would be a good idea, and using the power plug ground, if grounded, as the ground for a test light tapped onto the + terminal of the battery would prove that the ground is good, and will conduct juice.
tom