'97 Ford Expedition has short in tail light pig tail
I want to replace this myself since I was quoted a price of almost $100 to get it done at a local repair shop. I can't find anything online that will show how to replace the pig tail. I'm guessing it's a simple splicing job but wanted to get advice first.
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This DTC says nothing about changing the sensor or the connector or pig tail ! It's a circuit voltage low code P0405 - DPF EGR Sensor Circuit Low Voltage Detected
See DTC P1400
Problem with wiring or PCM ! P1400 - DPF EGR Sensor Circuit Low Voltage Detected
The EGR monitor checks the DPF EGR sensor signal to the PCM for low voltage. The test fails when the average voltage to the PCM drops to a voltage less than the minimum calibrated value.
DPFEGR circuit short to GND
Damaged DPF EGR sensor
VREF short to GND
A DPF EGR PID reading less than 0.2 volt with the key ON and engine OFF or running, indicates a hard fault.
Lonnie. This is a hard job but heres your answer. I have done this twice myself but it was for heater core replacement the blend door is connected to the heater core assembly. Go to youtube and search "ford expedition heater core replacement". This video is outstanding the guy who made it points to all the hidden screws and bolts. It is an all day job just getting to the heater core. You have to drop the steering column and take off the whole dash to get to the door. both times i did this it took me 2 days. One day to disassemble and the next day to assemble. If you take to dealer be prepared to spend between 900-1200 dollars. The climate door only cost about 20 bucks. God bless you and keep me posted.
The pigtail should be mounted to the smaller stud on the starter solenoid.
The other end should have a but connector and there should be a peice of heat shrink tubing also supplied. You will cut off the connector on the small wire that went to the spade terminal on the old starter. then crimp that wire to the new pig tail and then place the heat shrink tubing over the connection.
This will solve the problem with the spade connector corroding at the starter which causes many no crank problems with ford vehicles. Especially the older Taurus.
They are connected to the same fuse. This is done so you will know when your tail lights are not working. Replace the fuse. If it continues to blow you will have to trace the hot wire and search for a break or rub through in the wire insulation.