Notices
1999 - 2003 7.3L Power Stroke Diesel  
Sponsored by:
Sponsored by: DP Tuner

Intake Air Temp at Filter issue

Thread Tools
 
Search this Thread
 
Old Sep 2, 2021 | 02:57 PM
  #1  
SNIPER168308's Avatar
SNIPER168308
Thread Starter
|
Tuned
15 Year Member
Joined: Feb 2006
Posts: 354
Likes: 9
Intake Air Temp at Filter issue

The Intake Air Temp (@ filter) is showing 58 deg all the time. I’ve unplugged it, cleaned connection, still shows 58 deg. How do I test it and pigtail? Does this sensor need replaced?
 
Reply
Old Sep 2, 2021 | 03:07 PM
  #2  
Sous's Avatar
Sous
FTE Leadership Emeritus
Veteran: Air Force
Community Builder
Top Answer: 1
Top Answer: 3
Joined: May 2014
Posts: 27,352
Likes: 5,946
From: Lake Hartwell, GA
FTE Emeritus
How are you testing the function of the sensor? If you are using TorquePro or another scantool, you should verify the reading with FORScan or FORScan Lite in my opinion.

I have attached the IAT pinpoint test from the Ford Service Manual PC/ED volume.

Also, as you requested...





Most likely the sensor is shot and needs to be replaced. This sensor does not go out often, but it does happen. Stick to OEM/Motorcraft from a reputable source.
 
Attached Images
File Type: pdf
IAT Sensor Pinpoint Test.pdf (376.3 KB, 21 views)
Reply
Old Sep 2, 2021 | 03:58 PM
  #3  
SNIPER168308's Avatar
SNIPER168308
Thread Starter
|
Tuned
15 Year Member
Joined: Feb 2006
Posts: 354
Likes: 9
Originally Posted by Sous
How are you testing the function of the sensor? If you are using TorquePro or another scantool, you should verify the reading with FORScan or FORScan Lite in my opinion.

I have attached the IAT pinpoint test from the Ford Service Manual PC/ED volume.

Also, as you requested...





Most likely the sensor is shot and needs to be replaced. This sensor does not go out often, but it does happen. Stick to OEM/Motorcraft from a reputable source.
It’s the reading from ScanGaugeII…. It was working a month or so ago. Removed inner fender-well to replace steering gears. When I plugged it back in,, decided to run thru all the reading and noticed it was only showing 58 on a 90 deg day. Cleaned connection, etc. same reading.. and MPG’s are off a bit!
 
Reply
Old Sep 2, 2021 | 04:56 PM
  #4  
SNIPER168308's Avatar
SNIPER168308
Thread Starter
|
Tuned
15 Year Member
Joined: Feb 2006
Posts: 354
Likes: 9
Just priced one at the stealership! $120.. replied to parts guy; “that’s insane for that part, was someone suck’n on a crack pipe when they input the price?” He laughed!
 
Reply
Old Sep 2, 2021 | 06:01 PM
  #5  
Sous's Avatar
Sous
FTE Leadership Emeritus
Veteran: Air Force
Community Builder
Top Answer: 1
Top Answer: 3
Joined: May 2014
Posts: 27,352
Likes: 5,946
From: Lake Hartwell, GA
FTE Emeritus
Check @Riffraff Performance , @DieselOrings or @Bitterroot Diesel .

They often have genuine parts for a much more attractive price than the dealer.

Dealers are silly priced. They wanted $400 to replace a starter on a 2002 Mercury Sable that was my commuter car. Like, I laughed and told them they were high on something.
 
Reply
Old Sep 2, 2021 | 07:33 PM
  #6  
SNIPER168308's Avatar
SNIPER168308
Thread Starter
|
Tuned
15 Year Member
Joined: Feb 2006
Posts: 354
Likes: 9
Pigtail tested .219v Key Off. 4.5 Key On.. Sensor wouldn’t Ohm
 
Reply
Old Sep 3, 2021 | 02:55 AM
  #7  
aawlberninf350's Avatar
aawlberninf350
It's a Van Gogh
15 Year Member
Photogenic
Shutterbug
Liked
Joined: Feb 2010
Posts: 7,812
Likes: 1,335
From: Elk Grove, CA
Club FTE Gold Member
I'd zip tie it to the hot side IC pipe and see if it reflects the new environment.
 
Reply
Old Sep 3, 2021 | 07:31 AM
  #8  
Hootr's Avatar
Hootr
Tuned
5 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: May 2017
Posts: 284
Likes: 42
From: Colorado
Club FTE Silver Member

Put a hair dryer to it and see if there's any change.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

10 Ugly Ford Trucks That We Still Kinda Love

 Joe Kucinski
story-1

10 Things Every Truck Owner NEEDS (2026 Edition)

 Michael S. Palmer
story-2

Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

 Verdad Gallardo
story-3

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

 Joe Kucinski
story-4

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

 Brett Foote
story-5

Top 10 Ford Truck Tragedies

 Joe Kucinski
story-6

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

 Brett Foote
story-7

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

 Michael S. Palmer
story-8

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-9

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
Old Sep 3, 2021 | 09:22 AM
  #9  
SNIPER168308's Avatar
SNIPER168308
Thread Starter
|
Tuned
15 Year Member
Joined: Feb 2006
Posts: 354
Likes: 9
No change. No matter the environment
 
Reply
Old Sep 3, 2021 | 09:29 AM
  #10  
SNIPER168308's Avatar
SNIPER168308
Thread Starter
|
Tuned
15 Year Member
Joined: Feb 2006
Posts: 354
Likes: 9
I’m curious if it’s even really needed since there’s one in the manifold.
 
Reply
Old Sep 3, 2021 | 09:32 AM
  #11  
RacinJasonWV's Avatar
RacinJasonWV
Lead Driver
5 Year Member
Community Builder
Liked
Top Answer: 1
Joined: Jul 2017
Posts: 6,855
Likes: 2,332
From: WV
Club FTE Silver Member

Originally Posted by SNIPER168308
I’m curious if it’s even really needed since there’s one in the manifold.
I remember seeing someone say this is part of the table for fueling etc.

Also, let me refer you back to your previous post.

Originally Posted by SNIPER168308
and MPG’s are off a bit!
 
Reply
Old Sep 3, 2021 | 09:54 AM
  #12  
SNIPER168308's Avatar
SNIPER168308
Thread Starter
|
Tuned
15 Year Member
Joined: Feb 2006
Posts: 354
Likes: 9
Originally Posted by RacinJasonWV
I remember seeing someone say this is part of the table for fueling etc.

Also, let me refer you back to your previous post.
True,, but this garbage fuel we sometimes get, does the same thing!
 
Reply
Old Sep 3, 2021 | 10:26 AM
  #13  
RacinJasonWV's Avatar
RacinJasonWV
Lead Driver
5 Year Member
Community Builder
Liked
Top Answer: 1
Joined: Jul 2017
Posts: 6,855
Likes: 2,332
From: WV
Club FTE Silver Member

Originally Posted by SNIPER168308
True,, but this garbage fuel we sometimes get, does the same thing!
Had to tease you there when I saw the opening. Since they’re so expensive maybe check for used from a junk yard, eBay, etc.
 
Reply
Old Sep 3, 2021 | 12:50 PM
  #14  
SNIPER168308's Avatar
SNIPER168308
Thread Starter
|
Tuned
15 Year Member
Joined: Feb 2006
Posts: 354
Likes: 9
Originally Posted by RacinJasonWV
Had to tease you there when I saw the opening. Since they’re so expensive maybe check for used from a junk yard, eBay, etc.

lol.. I knew you were just poking at me.. I chuckled when I read it.

Bought one at NAPa for $20…. Guess what, immediately started registering temp. Fixed for now. Can’t complain, worked for 21 yrs and 341k
 
Reply
Old Sep 3, 2021 | 05:06 PM
  #15  
cjfarm11's Avatar
cjfarm11
Laughing Gas
15 Year Member
Photogenic
Joined: Jan 2009
Posts: 911
Likes: 74
From: Montana
Junkyard????
 
Reply



All times are GMT -5. The time now is 08:34 PM.

story-0
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-1
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-2
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-3
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-4
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-5
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-6
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-7
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-8
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-9
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE