Bucking/Surging Epidemic

[airline tech]

You are constantly making my Ranger Maintenance tasks simpler. It is very much appreciated.

I already had your scanner DPFE & EGR PID Diagnostic Values in my library, and now have a wonderful concise Chart to accompany them.

Thank You!

I took the liberty of "prettying up" your chart before converting it to a PDF file, and adding it to my "Airline Tech Library" in my Diagnostic Library Notebook. I highlighted the Normal and Max Command rows to draw my old eyes to the acceptable range for ease of use. I remember it now, but 2 years from now when I need it, i want it to be obvious to me.

When I worked at IBM, I valued people with critical thinking skills above all else. I knew that they were adaptable and could handle any task I threw at them. It didn't mean they liked the work, but they had the skills to figure out what needed to be done... and did it.

It is amazing where you find these people. I had PhD's on staff who could not string two sentences together, let alone take disparate facts presented to them and draw conclusions. At the same time I hired high school graduates who showed those skills, and within a few months excelled at the job.

You've got great skills and use them. I admire and appreciate your work.

Thank you again!

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 pressure or differential pressure, what is the pressure for coding etc (varied results) I have it all down now - compiled with using my Live Data mainly to (verify) what I find online is True and Correct. Let's just say I now know why - Dealers gave - No Code No Problem responses.

Sponsored

 

[TJC]

Your last sentence is PRICELESS!

 

[HappyFlyer]

apologies for not reading all 61 pages before posting, I did do a search but maybe I am not that good at it. My 2020 Ranger has been really struggling in the hot weather when driving with low RPM but high gear, and generally had many of the symptoms described by everyone else. TOday I disconnected the electrical plug/connector from the DPFE sensor (my assumption being this would prevent any input from the sensor being provided). It INSTANTLY resolved all the stuttering/misfiring/bucking/surging issues. I also didn't get a CEL on the dash. Is it safe to leave it "offline" until I can get a new one installed ? I am towing a trailer this weekend for about three hours and don't want to cause extra issues.

 

[airline tech]

I wou

apologies for not reading all 61 pages before posting, I did do a search but maybe I am not that good at it. My 2020 Ranger has been really struggling in the hot weather when driving with low RPM but high gear, and generally had many of the symptoms described by everyone else. TOday I disconnected the electrical plug/connector from the DPFE sensor (my assumption being this would prevent any input from the sensor being provided). It INSTANTLY resolved all the stuttering/misfiring/bucking/surging issues. I also didn't get a CEL on the dash. Is it safe to leave it "offline" until I can get a new one installed ? I am towing a trailer this weekend for about three hours and don't want to cause extra issues.

I would not leave it disconnected for a long term drive and the light will show up after a few failed -(Self Tests) of checking the response of the sensor for - EGR Flow.

Its the balance of - driving under No Load and Under Load, I suspect the PCM will retard the timing when its under a load.

Simply, the combustion temps will increase and the chain reaction may lead to spark knock and then lead to the PCM retarding the timing - Loss of Power (under load) and a fuel economy loss.
I think it may run fine under normal city driving, flat roads, its the when (under load) the PCM may adjust timing to protect itself

Sponsored