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04-29-2010, 03:28 PM
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Learning to use the forums
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engine temperature sensor
I recently had a scanner on my truck and it gave me an engine temp sensor fault. There are 2 of them... one goes to the computer, one goes to the temp gauge. does anyone know whick one is which? It's an '02 with a 4L
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04-29-2010, 03:32 PM
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Road Trippin' King!
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Re: engine temperature sensor
What are the codes?
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Quote:
Originally Posted by aaron_ariens
I think Henry just shit himself
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Quote:
Originally Posted by Radness
Its kind of like that carnival game "Whack A Mole" but with guns! Haha
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04-29-2010, 03:48 PM
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Learning to use the forums
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Re: engine temperature sensor
It was my brother's scanner. It said engine temp sensor self test not working. I got surging idle and it stalls if it idles too long. The scanner says both banks are lean. If the temp sensor isn't working the computer may be making it run lean. There are 2 temp sensors side by side but I don't know which one to replace... way to much shit goin on under the hood to follow the wires
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04-29-2010, 04:06 PM
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Road Trippin' King!
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Re: engine temperature sensor
Quote:
Originally Posted by tofr3b
It was my brother's scanner. It said engine temp sensor self test not working. I got surging idle and it stalls if it idles too long. The scanner says both banks are lean. If the temp sensor isn't working the computer may be making it run lean. There are 2 temp sensors side by side but I don't know which one to replace... way to much shit goin on under the hood to follow the wires
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Clean your MAF, that may help with the surging. I'll go look some stuff up and get back to you, what is the code though? Like P---- or what ever it is
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97 Ranger - 4.0 V6 auto, 4wd, 31x10.5x15s Wild Country XTX Sport All Terrains, Warn locking hubs, Pioneer deck with iPod attachment, Snugtop Topper, K&N filter, scan gauge II, Hella 500 Lights, More parts coming, waiting for the paycheck to get bigger!
Truck built in loving memory of Norm Howard
Outcast Racing
PNW Crew!!!
Afterhours Clan!!
Quote:
Originally Posted by aaron_ariens
I think Henry just shit himself
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Quote:
Originally Posted by Radness
Its kind of like that carnival game "Whack A Mole" but with guns! Haha
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04-29-2010, 04:11 PM
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Learning to use the forums
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Join Date: Apr 2010
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Re: engine temperature sensor
Thanks for the tip. I'm not sure if ther was an actual code or not. My brother wa using the scanner and he just read off the eng. temp. self test not working
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04-29-2010, 04:13 PM
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Road Trippin' King!
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Re: engine temperature sensor
That will register as a code. The other thing is you may not have driven the vehicle long enough for it to get all the proper parameters tested in the PCM
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97 Ranger - 4.0 V6 auto, 4wd, 31x10.5x15s Wild Country XTX Sport All Terrains, Warn locking hubs, Pioneer deck with iPod attachment, Snugtop Topper, K&N filter, scan gauge II, Hella 500 Lights, More parts coming, waiting for the paycheck to get bigger!
Truck built in loving memory of Norm Howard
Outcast Racing
PNW Crew!!!
Afterhours Clan!!
Quote:
Originally Posted by aaron_ariens
I think Henry just shit himself
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Quote:
Originally Posted by Radness
Its kind of like that carnival game "Whack A Mole" but with guns! Haha
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04-29-2010, 04:59 PM
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Ford Tough
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Join Date: Dec 2009
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Re: engine temperature sensor
Replace the sensor. The difference is:
-Sending unit (goes the the gauge) has only one wire.
-Sensor (goes to the computer) has two or three wires.
Since the sensor gives the computer info on the air/fuel mixture, I would fix that before I did anything else. Cleaning the MAF is always a good idea though.
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04-30-2010, 03:58 AM
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Some assembly required...
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Join Date: Jun 2009
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Re: engine temperature sensor
Quote:
-Sending unit (goes the the gauge) has only one wire.
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The gauge sending unit may have either one or two wires depending on year and engine. His 2002 4.0L has two wires to each ECT connector.
ECT (PCM sensor): Light green/red and gray/red
ECT (gauge sending unit): red/white and black/white
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01-10-2011, 08:06 AM
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Learning to use the forums
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Re: engine temperature sensor
I have a 2001 4.0L six with a P1116 engine coolant temp sensor self test out of range. The dash gauge reads in the middle. Is this due to faulty gauge?
Where is the gauge located?
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01-10-2011, 09:09 AM
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Some assembly required...
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Re: engine temperature sensor
Quote:
Originally Posted by RobW
I have a 2001 4.0L six with a P1116 engine coolant temp sensor self test out of range. The dash gauge reads in the middle. Is this due to faulty gauge?
Where is the gauge located?
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The gauge and the PCM use two different independent sensors. The code is related to the PCM sensor and has nothing to do with the gauge.
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2003 FX4 Level II, Supercharged 5.0L V8, Headers, Duals
BW4406 manual transfer case, Aussie Locker, Torsen L/S, 4.10's
Bilstein 7100 rezzies, Cadillac/Mustang rear discs, Duff traction bars
Keypad Entry, Lock LEDs, ABS switch, sway bar discos
Heated seats, Explorer EATC, Trip Computer and consoles
2003 XLT 2.3L M5OD-R1 reg cab, 2011 Taurus SEL, 2016 C-MAX Energi Plug-in Hybrid
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01-11-2011, 06:50 PM
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Learning to use the forums
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Re: engine temperature sensor
Quote:
Originally Posted by rwenzing
The gauge and the PCM use two different independent sensors. The code is related to the PCM sensor and has nothing to do with the gauge.
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Not sure that I understand. Are you saying that code P1116 is for a faulty PCM (powertrain control module)? The references that I find say that the engine temp sensor is failing it's self-test. Wouldn't this mean that the sensor should be replaced?
I appreciate your answer. I have purchased a replacement sensor, but if I need to look elsewhere, I'd rather take the sensor back than have blown that $20 and need to spend more time/money elsewhere. Thanks.
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01-11-2011, 06:53 PM
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Totally bummed
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Join Date: Jun 2010
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Re: engine temperature sensor
just replace them both. its easier
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01-11-2011, 07:24 PM
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www.shanewootenband.com
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Re: engine temperature sensor
The Coolant Temperature Sender (usually black or brown) lights up the idiot light or the water temp gauge..
The CTS coolant temperature sensor send signals to the ECU (computer) is (usually Grey)
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