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Then the next question is - What type of switch is it? What is the requirement for the background illumination of the switch you are installing? 12 Volt source or PWM - Dimming Compatible? Look for a wording like: PWM Dimmer Compatible or OEM Illumination Compatible or Constant Current LED...

Illumination? You mean

For the Ranger - it's specifically for the DPFE - and it's the code that should display for all the no code but have Buck Surge. It will only set - when EGR is active and flowing - as the DPFE is what sets the code. So, it's one of the following - DPFE Sensor itself or moisture or restriction...

Opening the hood won't help anyway - it's here above the bell housing and covered with a shield This is why another member did this - use a chair (foot) to fill hole (plug) - just be careful of location as you are near the heater core.

So you scanned and pulled code P139C?

The PID is Labeled - Exhaust Gas Recirculation Temperature - Sensor B - this is the EGRT mounted on the EGR Tube assembly - the other PIDs are not installed so they display a default value when viewing them on a scanner - one of those misleading things about scan tools - if you do not know the...

This is a - NORMAL - EGR Event and if you would have added the EGRT to the list, you would also have seen the EGRT - Temperature climb along with EGR Flow and when EGR Valve closed the temp would drop back down. Since you (frame by frame) reviewed - you noted that the EGR Event is actually very...

I see you thought process but at least our US version EGR Cooler has: Note: EGR Valve - Mounts on the EGR Cooler Outlet 1. One Exhaust Inlet Port (2-Bolt Block Flange) and if the EGR Valve is closed - Ex Pressure Dead Ends 2. One Coolant Inlet Port - Rigid Tube (2-Bolt -Block Flange) 3. One...

Well (POO) I missed an important step :headbang: the intent was to place the engine under a load with the brake applied so IT SHOULD HAVE BEEN 1. Set up the Block Test - the same as you did previously 2. Park in an open area - in front of the truck 3. Set Parking Brake 4. Start Eng and Hold...

Just to confirm for the Positive Test You were either in (Drive) and doing the (Brake Load) test or were using a scan tool to command the EGR Valve open - Correct or Just a raised RPM and in park?

Awesome - sounds like a valid fix

Everything Looks Normal - So Far ok for a test drive: Use The Following PIDs: Barro: EGR Desired: EGR Actual - Variously Labeled (May be labeled as EGR Valve Position Sensor A (Lift Position) Corrected) or (Flow Area or Duty Cycle Position) DPFE Pressure: DPFE Voltage: MAP (Hi Resolution)...

That was just one of the charts I found - I have complied a great deal of data and will be working on a final post soon - it's very difficult when you have older fords that operated in a different pressure and voltage scales - it makes it very confusing and then also factor in is it absolute...

Since I am not sure: Is it the Adapter to OEM mount Or New mirror to adapter That is actually not fully securing tight Either way - I would try to find something to take up the slop - Tape, Thin Piece of rubber , cloth , gauze etc

I would say it is probably more common in ones that actually get used , more heat stress applied - but is not limited to the (only if it has been) so it’s a roll of the dice here. The leak risk applies to all and the fire hazard - applies if you plug it in and the leak exists. (short)

They should completely drain and refill with new - for either temp or permanent repair - as the block heater in in a low point of the system on the block.

Sorry forgot to add - plus a correction, I noted CHT and meant ECT as the sensor reading coded. What I believe is happening and why the issue returns, the tube is clogged and the DPFE diaphragm is being held in the max pressure position for so long it damages the diaphragm- and locks it in place...

Sorry I missed that it went to normal in your first paragraph- I only saw the negative numbers -0.36 , so now at koeo you have a normal reading , what does it read at idle? Same or the high negative numbers - if it moves to high negative numbers it’s the Tube restriction that’s causing the...

YES- This is a Tie IN VREF: Circuit: 5.0 Volts Fuel Rail Press Sensor DPFE Sensor Oil Press Sensor MAP Sensor VREF Signal Return: ECT - Eng Coolant Temp CHT - Cyl Head Temp DPFE - Sensor EGRT (Temp) Ex Pressure Sensor HO2S-12 (Rear O2 Sensor) This may explain the higher VREF voltage and your...

I am in the process of a very detailed description of the system and still fine tuning it, as your readings and another members readings (EGR System) I want to know at KOEO and IDLE -- Compare I want to know how much these readings change between the 2 The Following: PID Readings BARRO...