ECT Sensor Question - Ford Powerstroke Diesel Forum
User Tag List

LinkBack Thread Tools Display Modes
post #1 of 3 Old 02-27-2012, 06:44 PM Thread Starter
Premium Member

RYanmas9's Avatar
Join Date: Dec 2007
Location: Monore, NC
Posts: 3,102
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 21 Post(s)
Thanks: 145
Thanked 34 Times in 32 Posts
Feedback Score: 2 reviews
Send a message via AIM to RYanmas9
ECT Sensor Question

Ok guys,
Bought a 2002 Ford F250 4x4 6 speed with 155K back in August. She had some issues but I am slowly getting them fixed. Up Pipes were leaking, exhaust had been done by some first time welder that was blind folded....ect. My check engine light was on of course. So I have replaced my Up pipes with the International Beveled pipes, and have a new 4" turbo back exhaust. She is sounding good and running like a champ. Pulled the codes and showed P0117 and P0476.
P0476 Was the Exhaust Pressure sensor. It was pretty much full to the brim with carbon, so replaced that and cleaned the tube out. Now the Valve in the turbo works and my fuel mileage has increased. Had some starting issues so also replaced CPS and ICP sensors. Had the fuel heater wires rubbing together shorting out. Spliced the plug and fixed the wires. Fixed all those problems.
My problem lies with the P0117 Code. This is the ECT sensor. I replaced the ECT sensor and it is showing normal temps. Whenever the truck gets into normal operating temperature the CEL comes on. Once the truck is shut off and cools down the light goes back off. Thinking it might be something else, I replace the Air intake sensor at both the Air intake and the Air charge sensor on the Spider Pipes up by the turbo...still got the light. I unplugged the sensor and the temperature gauge goes to the cold Im guessing there arent any wiring shorts.
I've read that the manuals go by the Engine Coolant temperature while the automatics go by the Engine Oil Temperature. Is this true or could my oil temp sensor need replaced? Im lost guys I dont know where to go from here. Any ideas? MAP sensor tied to this at all?

Just a few upgrades here and there.
RYanmas9 is offline  
Sponsored Links
post #2 of 3 Old 01-02-2014, 06:25 PM
Compression Ignition Addict
BrodieBiking's Avatar
Join Date: Aug 2013
Posts: 316
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 1
Thanked 6 Times in 6 Posts
Feedback Score: 0 reviews
Did you ever get this fixed?
My truck is doing the same thing.

2002 F350 CCLB DRW
ZF6 SWAPPED! --Southbend 1944-6OFEK
12.5in lift on 24.5's----------3" Body Lift
MBRP Dual 4"--------------Muffler Delete
K&N Intake----------------AFE Spider
Garret GTP38R BB--------- P.I.S. billet wheel
TS 6pos chip--------------NLTD tunes
P.I.S. 200cc/80%--------- P.I.S. IDM
Parrot Asteroid-------Boston Accoustic SR80's
NVX VCW 10s------------ McIntosh MC431
Warn Manual hubs---------Bed Rails/Air tank
BrodieBiking is offline  
post #3 of 3 Old 01-04-2014, 10:15 PM Rookie
Join Date: Jan 2014
Location: Bellevue, Washington
Posts: 29
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Both manual and automatics use engine oil temp for engine control. Coolant temp is for info.
cattec3612 is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome