Coolant temp sensor symptoms
Thread Starter
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Elder User
Joined: Jul 2010
Posts: 960
Likes: 3
From: Saint Charles, Missouri
Coolant temp sensor symptoms
Lately ive noticed that my truck warms up fine, gets amazing heat from vents but the gauge doesnt even go past the first mark. it barely lifts past the "c". Im wandering if this is causing my loss of power because the truck still thinks its cold? Could this be the coolant temp sensor?
Symptoms:
-Obviously the gauge reading cold
-Truck gets random loss of power when around 3/4 throttle
-Gas mileage is still fairly normal (around 13mpg)
-Sometimes chuggs and bucks at lower speeds
Symptoms:
-Obviously the gauge reading cold
-Truck gets random loss of power when around 3/4 throttle
-Gas mileage is still fairly normal (around 13mpg)
-Sometimes chuggs and bucks at lower speeds
Senior User
Joined: Feb 2009
Posts: 234
Likes: 0
I just changed mine, since it broke
when I was replacing the thermostat. It is an easy and cheap replacement. If you are questioning the functionality of the sensor, swap it out.
My truck is running smoother and cooler since I changed mine out but I also put in a new thermostat.
when I was replacing the thermostat. It is an easy and cheap replacement. If you are questioning the functionality of the sensor, swap it out.My truck is running smoother and cooler since I changed mine out but I also put in a new thermostat.
Fleet Owner
Joined: Oct 2005
Posts: 20,786
Likes: 1,751
From: Kentucky
The PCM uses a different sensor to measure the Engine Coolant Temperature. You need a real temperature gauge to measure the coolant temperature. Never rely on the factory gauge to be accurate.
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
The engine temp sensor and the dash gauge sensor are two seperate items, the one on the thermostat housing is for the engine and if it is out of range you will get a code for it. The dash sensor is a little single wire thing in front of the #5 injector in the lower intake, normal operation for this gauge tends to be on the low end of the scale though mine reads more towards the middle since I replaced the original sensor with a new aftermarket one.
That said I doubt your problems are related to these sensors, I suggest you pull the codes to see what is being flagged.
That said I doubt your problems are related to these sensors, I suggest you pull the codes to see what is being flagged.
Thread Starter
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Elder User
Joined: Jul 2010
Posts: 960
Likes: 3
From: Saint Charles, Missouri
Stared the truck, got it to normal running temp. and the infrared temp gun reads 198-215 degrees. Guage only moved up a little past "c" after 15 min of idle time and ~10 min driving.
Whats my next move?
Whats my next move?
Fleet Owner
Joined: Oct 2005
Posts: 20,786
Likes: 1,751
From: Kentucky
Replace the gauge coolant temperature sensor that Conanski described in Post#4. That usually fixes the low gauge reading problem.
Quote from Conanski: "I suggest you pull the codes to see what is being flagged" to see what may be causing the other issues.
Quote from Conanski: "I suggest you pull the codes to see what is being flagged" to see what may be causing the other issues.
Junior User
Joined: Jan 2011
Posts: 57
Likes: 0
Lately ive noticed that my truck warms up fine, gets amazing heat from vents but the gauge doesnt even go past the first mark. it barely lifts past the "c". Im wandering if this is causing my loss of power because the truck still thinks its cold? Could this be the coolant temp sensor?
Symptoms:
-Obviously the gauge reading cold
-Truck gets random loss of power when around 3/4 throttle
-Gas mileage is still fairly normal (around 13mpg)
-Sometimes chuggs and bucks at lower speeds
Symptoms:
-Obviously the gauge reading cold
-Truck gets random loss of power when around 3/4 throttle
-Gas mileage is still fairly normal (around 13mpg)
-Sometimes chuggs and bucks at lower speeds
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New User
Joined: Feb 2018
Posts: 3
Likes: 0
Lately ive noticed that my truck warms up fine, gets amazing heat from vents but the gauge doesnt even go past the first mark. it barely lifts past the "c". Im wandering if this is causing my loss of power because the truck still thinks its cold? Could this be the coolant temp sensor?
Symptoms:
-Obviously the gauge reading cold
-Truck gets random loss of power when around 3/4 throttle
-Gas mileage is still fairly normal (around 13mpg)
-Sometimes chuggs and bucks at lower speeds
Symptoms:
-Obviously the gauge reading cold
-Truck gets random loss of power when around 3/4 throttle
-Gas mileage is still fairly normal (around 13mpg)
-Sometimes chuggs and bucks at lower speeds
hello I was wondering if you fixed your issue? I'e been having similar problems .
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New User
Joined: Feb 2018
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Help me please
I have an 88 f150 inline6. This is the type of truck you have right? If so could you contact me. I' new to this site and not sure if a reply on here will go to my email. But here is my email if you decide to chat. Jbrueckner1228@gmail.com. I am not a bot or anythi g like that. Hope to hear from ya
Fleet Mechanic
Joined: Jan 2013
Posts: 1,305
Likes: 8
this thread is almost 7 years old, and all the people who were posting in it are for sure driving dodges now.
stay with the thread that you just started and it will be easier for the ford gurus to walk you through the troubleshooting procedure.
stay with the thread that you just started and it will be easier for the ford gurus to walk you through the troubleshooting procedure.
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