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Intake Air Temperature (IAT) Sensor Replacement Write-Up (DS7Z-12A697-A)

Trash Panda

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Greetings All,

Dropping another one of my write-ups. This time on our Intake Air Temperature (IAT) sensor. (Also known as a Air Charge Temperature Sensor)
When I was working on my bucking/surging issue by replacing the DPFE (Differential Pressure Feedback) sensor, I figured why not go ahead and change both the MAPT and IAT sensors to hit the big three sensors when it comes to engine efficiency.

Supplies Needed :
-IAT Sensor (Ford DS7Z-12A697-A) ($17 on FordParts.com and delivered to my doorstep less than 24 hours after ordering)
-Small Flathead (or Slotted) screwdriver

IMG_2517.jpeg


STEP ONE :

Pop the hood and locate the IAT sensor. It is located on the top of your Air Cleaner assembly on the passenger side of your Ranger. It faintly resembles what a MAF sensor would look like if we had one on our Rangers.

IMG_2518.jpeg


STEP TWO :

Disconnect the IAT electrical connector. Simply push down on the tab (circled) to release the locking tab and pull it towards you to remove.

IMG_2519.jpeg


STEP THREE :

Use a small flathead screwdriver to gently pry the plastic tab on the bottom of the IAT upwards over the "hump" on the housing (circled). Once you have the tab pried upwards, turn the IAT counterclockwise to disengage it from the housing for removal.

IMG_2521.jpeg
IMG_2522.webp


STEP FOUR :


Once you have the tab over the hump and rotated about 45 degrees clockwise simply pull the IAT towards you to remove it from the housing.

IMG_2523.jpeg


STEP FIVE :

Reverse what you just did to install the new IAT. Line up the tabs on the IAT with the tabs you will be able to see inside the Air Cleaner assembly and insert the new IAT. When you insert the new IAT fully turn the IAT clockwise about 40-45 degrees until that plastic tab on the bottom locks in under the "hump" on the assembly.

IMG_2524.jpeg
IMG_2526.jpeg


STEP SIX :

Plug the electrical connector back into the IAT until you hear a "click".
Crank your Ranger to see if a check engine light or any error message appears. Take a test drive around the neighborhood if desired.

IMG_2527.jpeg



That's it! Grab a cold one and enjoy a simple job well done! :sunglasses: :beer:

Placebo probably, but after changing my DPFE, MAPT, and IAT sensors the truck has not driven this good since I bought it at 27k miles...Granted there's brand new spark plugs and filters in there too.
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got3fords

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Just curious as to why you felt the need to replace all these sensors.
 
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Trash Panda

Trash Panda

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Just curious as to why you felt the need to replace all these sensors.
Took a sledgehammer to my bucking/surging issue, the terrible 3rd to 4th gear shifts, and lugging at lower speeds through my neighborhood.

I am an electronics manufacturing engineer so I know sensors do not last forever so it was an age of my truck (about to be 5) and piece of mind too.

Plus any work instructions I can write better than the Ford manual to help anyone on our forums I’ll gladly do.
 

got3fords

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Took a sledgehammer to my bucking/surging issue, the terrible 3rd to 4th gear shifts, and lugging at lower speeds through my neighborhood.

I am an electronics manufacturing engineer so I know sensors do not last forever so it was an age of my truck (about to be 5) and piece of mind too.

Plus any work instructions I can write better than the Ford manual to help anyone on our forums I’ll gladly do.
I gotcha, so are your symptoms improved?
 
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Trash Panda

Trash Panda

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Drives like a brand new truck.
I theorize it takes a few days for everything to relearn, and the janky 3rd to 4th gear symptom is at least 95% smoother now. No more lugging or the feeling the transmission is in too high of a gear going 20 or less mph either.
 


Jason B

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Good write up, but the temp sensor replacements were overkill, but cheap and relatively easy to replace.
Faulty DPFE sensors have been known to cause the problems you experience, so no placebo on your results.
 

5thranger

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Greetings All,

Dropping another one of my write-ups. This time on our Intake Air Temperature (IAT) sensor. (Also known as a Air Charge Temperature Sensor)
When I was working on my bucking/surging issue by replacing the DPFE (Differential Pressure Feedback) sensor, I figured why not go ahead and change both the MAPT and IAT sensors to hit the big three sensors when it comes to engine efficiency.

Supplies Needed :
-IAT Sensor (Ford DS7Z-12A697-A) ($17 on FordParts.com and delivered to my doorstep less than 24 hours after ordering)
-Small Flathead (or Slotted) screwdriver

IMG_2517.jpeg


STEP ONE :

Pop the hood and locate the IAT sensor. It is located on the top of your Air Cleaner assembly on the passenger side of your Ranger. It faintly resembles what a MAF sensor would look like if we had one on our Rangers.

IMG_2518.jpeg


STEP TWO :

Disconnect the IAT electrical connector. Simply push down on the tab (circled) to release the locking tab and pull it towards you to remove.

IMG_2519.jpeg


STEP THREE :

Use a small flathead screwdriver to gently pry the plastic tab on the bottom of the IAT upwards over the "hump" on the housing (circled). Once you have the tab pried upwards, turn the IAT counterclockwise to disengage it from the housing for removal.

IMG_2521.jpeg
IMG_2522.jpeg


STEP FOUR :


Once you have the tab over the hump and rotated about 45 degrees clockwise simply pull the IAT towards you to remove it from the housing.

IMG_2523.jpeg


STEP FIVE :

Reverse what you just did to install the new IAT. Line up the tabs on the IAT with the tabs you will be able to see inside the Air Cleaner assembly and insert the new IAT. When you insert the new IAT fully turn the IAT clockwise about 40-45 degrees until that plastic tab on the bottom locks in under the "hump" on the assembly.

IMG_2524.jpeg
IMG_2526.jpeg


STEP SIX :

Plug the electrical connector back into the IAT until you hear a "click".
Crank your Ranger to see if a check engine light or any error message appears. Take a test drive around the neighborhood if desired.

IMG_2527.jpeg



That's it! Grab a cold one and enjoy a simple job well done! :sunglasses: :beer:

Placebo probably, but after changing my DPFE, MAPT, and IAT sensors the truck has not driven this good since I bought it at 27k miles...Granted there's brand new spark plugs and filters in there too.
You are to be commended for your excellent technical writeups. Having said that when will there be one for the transmission.
 
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Trash Panda

Trash Panda

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You are to be commended for your excellent technical writeups. Having said that when will there be one for the transmission.
Hoping the $150 I spent on sensors prevents that. :crackup: It did fix what I thought was the transmission going out for now..

Closing in on 60k miles so the clock is ticking. I did buy the 7 year/100,000 miles warranty with the truck from my dealer though so at least there’s that.
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