DPFE sensor change (sensor only)

[TJC]

When we bought the house and moved down here we had to have the whole HVAC system replaced. Luckily the new unit was optioned with a soft start feature.

I've been thinking about adding a whole home dehumidifier to the HVAC system. I just don't wanna crawl up into the billion degree attic to do it!

My attic was just as hot! Incredible heat build up.

I had a Mennonite family install a metal roof on my home. They framed the entire roof with 2x4's and then spaced them at 2' intervals horizontally from the eaves to the top of the roof. They then leveled the 2x4 framing across the entire roof with shims (top to bottom and left to right) before adding hard insulation and a vapor barrier. Then the metal went on. Dropped my Attic temps to very near ambient, so close in fact that I can't tell the difference. Attic fans almost never kick on. When it hit 100F+ earlier this year they ran for a day or two, but I had them set to come on at 102F.
They used to run nonstop during the summer.

It was expensive, and the entire family flew to Belize to visit family on my dime! 50 year warranty too. I'd spend the money again. Craftsmanship was outstanding.

Father was in his mid 50's with 5 sons from 12 to 21. All of them like mountain goats on the 12/12 pitch roof! I asked how they were paid, he told me that they had a profit sharing plan, and the older boys had already accumulated major savings.

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[Builderbob]

Is there any negative things that can be brought on by changing the dpfe sensor. Has anyone had new problems after changing it?

 

[ctechbob]

Is there any negative things that can be brought on by changing the dpfe sensor. Has anyone had new problems after changing it?

I've never heard of anything.

 

[airline tech]

Is there any negative things that can be brought on by changing the dpfe sensor. Has anyone had new problems after changing it?

The only things that come to mind are: (If related to the install of the DPFE Only)
Bad From Stock (DPFE Sensor) or hose not fully secure or damaged connector or bad wire on that circuit that was disturbed and now is generating a new drivability symptom.

I am assuming you are asking the question for a reason

 

[Builderbob]

After having the transmission replaced and driving my 20 Lariat for a while the shifting seems to be pretty much as I expected. If I obsess about it there is a small amount of rough acceleration or hesitation,not terrible but it’s there. The traffic around here requires you to jump out into traffic when you get a chance. Will changing the Hpfe sensor help with the hesitation?

 

[ctechbob]

After having the transmission replaced and driving my 20 Lariat for a while the shifting seems to be pretty much as I expected. If I obsess about it there is a small amount of rough acceleration or hesitation,not terrible but it’s there. The traffic around here requires you to jump out into traffic when you get a chance. Will changing the Hpfe sensor help with the hesitation?

Very well could.

In reality, the DPFE should probably be a 30-40k change item. Ford isn't going to redesign the sensor and there is little you can do to prevent it from getting water in it. Change it every 30-40k regardless and keep on keeping on. Little bit like sparkplugs in that regard, you change them and forget about them until the next time.

 

[airline tech]

Very well could.

In reality, the DPFE should probably be a 30-40k change item. Ford isn't going to redesign the sensor and there is little you can do to prevent it from getting water in it. Change it every 30-40k regardless and keep on keeping on. Little bit like sparkplugs in that regard, you change them and forget about them until the next time.

The sensor was actually redesigned years ago, its been a known failure module for years with other models as well.
They changed from a metal housing to plastic, I believe a good change but still did not cure the issue entirely.
You would think by now they would have developed a less prone to failure sensor a collector and a pressure DPI that would port the moisture out of the system at engine shutdown it would have to be a automated drain or the average consumer will not drain it regularly or reroute that collector to dump into the actual exhaust flow.
IDK just spiting out ideas

 

[TJC]

The sensor was actually redesigned years ago, its been a known failure module for years with other models as well.
They changed from a metal housing to plastic, I believe a good change but still did not cure the issue entirely.
You would think by now they would have developed a less prone to failure sensor a collector and a pressure DPI that would port the moisture out of the system at engine shutdown it would have to be a automated drain or the average consumer will not drain it regularly or reroute that collector to dump into the actual exhaust flow.
IDK just spiting out ideas

IMO. the entire EGR system needs to be scrapped. It is a poorly designed bandaid.

I am not a chemical engineer, but I think NOX could be reduced with something similar to a catalytic converter type of device rather then recirculating exhaust gases back into the intake track.

 

[Bullet]

I did the DPFE thing. Changed it out this past weekend. Reused the hoses. Water came out of the old sensor. I wasn't noticing a whole lot of issues prior to changing it out. But I got to say, I believe it's smoother now. I used worm clamps on both ends of the hoses. Was kind of a knuckle scaping venture, but got-r-dun.
Rock Auto for the part - approx $27

 

[Skywalker268]

I just did my DPFE sensor. Recently had a transmission overhaul covered under warranty and got a new CDF drum as well as clutch pack and trash can. After i got it back, it was like 80% better. Did the DPFE and that feels like the last 20%. Im just going to consider this a maintenance part and do it every 30-40k miles. Cost me $28 from RockAuto.

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