myf16

I have a p303 on 2009 edge. I plan to replace the bank 1 coils and plugs now and bank 2 (the easy ones) later. Do I need a gasket or other parts to reinstall the plenum?

I need to attach a front plate to my 2009 Edge. What size screws do I need? I assume they are metric bolts?

I had only Home Depot stock to choose from, at 5 minutes until closing time. Beast would have been gel-filled scotchlok connectors. Gel-filled wire nuts should give a permanent repair.

I ended up having to switch all 3 wires. It works now. Fortunately I had a working right side connector to identify the roles of the 3 pins. Photos show the non-Ford connector, incorrect wire pairing, corrected wire pairing, and waterproof wire nuts before reassembly. The person who installed the connector checked that the signals and running lights worked, but must not have tested them together.

My 2009 Edge has a fast blinking left signal from the front turn lamp only whenever the parking lights or headlights are on. With the parking lights and headlights off, the left rear turn signal operates normally. I infer that the stop/turn signal circuit is grounding through the running lamp filament, which can only happen when the running lamp is off. Also that the ground wire for the tail lamp socket is not connected to ground. However I don't understand how the running lamp can ground itself through the stop/turn filament. Anyway, am I correct that I need to find the break in the ground connection? A second possibility is that the ground wire is marginal: sufficient to carry the current of one filament but not two. Edit: Someone had replaced the body-side connector to the left stop/turn lamp. They used a mechanically compatible pigtail connector whose green wire was NOT on the correct pin for ground, but they wired it to ground. I will switch two wires on the pigtail and that should fix it. Thanks so much to @Haz for the detailed information in the other post from a member with what could be the same problem:

I have a 2009 Edge with a P0430 code (front bank catalyst efficiency). I want to start by changing the downstream oxygen sensor, which is very easily accessible. I want to use Ford parts or as close to their performance as possible. What are the Ford part numbers for upstream and downstream oxygen sensors? What company makes the Ford-branded O2 sensors? Bosch? I wouldn't buy a Brand X sensor, but I can get an NGK 22500 with connector for $32. Edited to add: I looked at the voltage outputs from all 4 sensors, and they are working great. It's the front catalyst that's not doing anything.

Solved. The aftermarket brake switch has a pair of black tabs which rotate 45 degrees. In one position the switch operates correctly for the Edge. Pins 1 and 4 are normally open and pins 2 and 3 are normally closed. In the other position pins 1 and 4 are not connected and pins 2 and 3 are normally open. When you install this switch in the slot and then rotate it 100 degrees or so, the switch changes to the incorrect mode! If you rotate it back 80 degrees all is well. FWIW the debug steps I1 and I2 both resulted in Yes, indicating a defective switch. However the real problem was a dual-mode part. Picture shows the black tabs in the correct position. Thanks again, @Haz.

Thanks so much for the details. My ForScanLite app gives me code C1446: Brake Switch Circuit Failure Open or Shorted to Ground. I think that means that the GEM (aka Smart Junction Box) is OK, which means I have a good chance of finding the problem.

This is an intermittent but increasingly frequent fault on my 2009 V6 Edge. When I press on the brake pedal the brake lights do not illuminate and therefore I can't shift out of park. I'm immobilized. I replaced the brake light switch above the brake pedal and it worked for an hour or so. Now it's not working. I.e. no change. The fault still comes and goes for no known reason. Can someone point me to a wiring diagram for the brake light circuit? Maybe there's a shaky ground connection somewhere? I need to solve this immediately.