Golf IV / Jetta IV :: 2003 - Code P0118 / Coolant Temp Sensor Replacement?
Nov 6, 2015
I recently got the solid check engine light for my 2003 VW Jetta 1.8T GLS. I used a bluetooth OBDII dongle and Torque Pro to pull the code P0118. This seems to coincide with my symptoms:
Car idle at start in park stays around 1100RPM then in reverse it drops to 1000RPM then back into park and it stays around 900RPM and keeps that at idle.
If I start the car then immediately reverse out of my driveway then the car has a very rough idle but if I wait around 5 seconds in park idle then reverse out of my driveway it is smooth.
My car dash thermometer stays pretty close to the bottom low then after about 4-5 minutes it shoots up to 190F and stays. Gas mileage is also very poor.
I looked up a tutorial which shows the parts needed and how to replace the sensor : [URL] .....
I removed the engine cover and believe I found the coolant temp sensor in the spot the tutorial shows. My question is if there is anything I should be aware of before attempting to replace this sensor that this tutorial doesn't cover? I took a screenshot of what I believe is the coolant temp sensor.
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My temperature has been randomly dropping, them back to middle, and recently my engine was overheating because I'm guessing the fans didn't turn on, because I'm also guessing, the engine didn't know it was overheating?
Anywho, during my replacement, I made sure to get rid of the pressure, and the car was cold. I tightened the cap again, but when I took the sensor out, all the coolant spewed out.
Now if I understand this correctly, do I have a leak? I figured the leak I had was coming from the temp sensor as it is.
Here's some pictures for those who'd like to see ....
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So my check engine light came on in my 04 jetta sw, and when I had the car read, it gave me a code that tracked down to be a bad coolant temp sensor. I bought the replacement part from my local VW dealership, installed it and the check engine light went away. Now about 2 weeks late it came back on, and I am getting a reading of "Coolant temp sensor high voltage". So it goes from needing replaced, then the replacement is running high voltage?
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My 2003 Mk 4 Golf have had a lot of error codes and I have cleared most (O2 sensors, thermostat, and Mass Air Sensor) I now have an error P0113 which is the Intake Air temp Sensor.
So I need to clean the sensor first then maybe replace it, but I can't find the sensor on the intake manifold.
I have looked all through the U-Tube info, but nothing matches my 2003 Golf 2.0L ....
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Threw a coolant temp sensor code yesterday morning:
16502 - Engine Coolant Temp. Sensor (G62): Signal too high
p0118 - 002 - Lower Limit Exceeded - Intermittent - MIL ON
Does throwing that code once mean I need to replace the CTS immediately or am I safe to clear the code and see if it returns? No code today after a 40 minute drive.
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I just replaced my CTS, and I noticed that there is a small section of exposed harness wiring between the end of the loom and the CTS connector. I can't tell if it came loose when I swapped the sensor, or if it was this way for awhile, but all of the other harness connections around this area are completely covered and the loom end doesn't seem to clip into the connector or anything. If I were to try and seal it, I would need to use tape.
How hot does this area get? It seems like there shouldn't be exposed wiring here.
Picture taken with the new sensor: [URL] ...
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My 2003 Mk 4 Golf have had a lot of error codes and I have cleared most (O2 sensors, thermostat, and Mass Air Sensor) I now have an error P0113 which is the Intake Air temp Sensor.
So I need to clean the sensor first then maybe replace it, but I can't find the sensor on the intake manifold.
I have looked all through the U-Tube info, but nothing matches my 2003 Golf 2.0L ...
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2001 jetta 2.0 VW guys a while back I was pulling a code saying that the air temp sensor circuit was low I believe it was P0112 so I replaced the maf with a bwd maf. Said it was for the car. Was fine for a day but now it has a P0102 code and the epc stays on (rough idle) what could be wrong ? Is it because the car hasn't learned the new sensor yet because I've only drove 10km or do I have a faulty sensor. BTW replacing the maf fixed the P0112 code
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I have a a 02 jetta 1.8 turbo the code po343 came up after new temp sensor,valve cover gasket and full tune up. is it an easy fix the car is misfiring an very hard starting.
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I was driving today when the CEL came on, I scanned the car which gave me 1 code: P1296.
I googled it and said it is possibly the coolant temp sensor?
The Engine temp was normal at 190' or just below even after quite a bit of driving today.
Would the problem just be the sensor or should I be looking for other problems as well?
The car is a 2002 B5.5 AWM 1.8T Tiptronic.
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P3081. What the hell is this code. I think it is a coolant temp. sensor issue.
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2001 3.0 XLT Ranger 2wd 4 door
Okay getting ready to trade in my Truck. So I removed all the extra things I put on there while I was in college, the amp, fog-lights, and analog oil pressure sensor along with their wiring. It was pretty easy minus removing the oil pressure sending unit part.
I had to unplug the MAF to move the intake out of the way while I was repairing a loose vacuum tank. But I forgot to plug it back in when i closed everything up. I started the truck and drive it about a half mile before I was able to pull over and plug it back in. Truck ran and shifted fine after that, but the CEL came on. P0119 Coolant Temp Signal Intermittent. Guy at Autozone said it was Intake Air Temp Sensor intermittent and I could just replace the part, but they were showing a separate part even though it is built into our MAFs.
So now the CEL is on, can get it to go away. Truck is a little jerky every once in a while, like a misfire, when between 50 and 60. Before all this the CEL was off. Now after I cleaned it up and removed some of the superfluous accessories, I get a CEL. I wanted to trade it in this coming weekend without having to take a loss because of the CEL or spend more money to fix it.
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I went to my local Autozone today to have a code read and get the freeze frame data. I got a code P0118, Engine Coolant Temperature Circuit High Input. I called the dealer but they are out of stock on the sensor. Would it be a problem to use an after market sensor? I'm just concerned about the quality and accuracy of the sensor.
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Engine light is one for about a month and finally got an ODB II.
Today it reads the error code [b]P0118 which is [b]Engine Coolant Temperature Circuit High Input
The coolant sensor reads 45 C when the key is on "on" position at about 2:30 pm this afternoon and I start the engine about 2 mins the temp jumps to 68 C, are these some logical number?
Does it mean the bad temperature sensor and I need to replace it?
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Okay so recently I was driving my 2000 Jetta and the coolant temp light came flashing on, when I went to check the coolant I was surprised to discover that it was like a mud brown color, almost looks like peanut butter. From everything I have read this can be from a few things, either rust build up that is gunking everything up and oil getting into the coolant somehow. I'm pretty sure its rust build up but I was wondering what everyone thinks about this, I was also not using G12 coolant which I'm told now is the premier brand for VW's.
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Where exactly is the coolant temp sensor located on a 2000 F-150 4.6 V-8.
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I drove my 99.5 7.3 F-350 1 mile to a friends and hooked it to the OBDII to get a code for my abs light.it had not been drove all day. we hooked into the pcm and he noticed the temp at 375* it was idling. is this right he didnt think it should have been that high???Will the engine coolant temp sensor, if it were bad,show a high temp of 375*? On the OBDII it showed a temp of 375* .....
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I dont see anything attached to the manifold....
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I have a 2003 Passat 1.8t(B5.5) and I need to change my engine coolant temperature sensor. I have search and found conflicting answers on the forums as far as it location and description. From what I can see it is located near the bottom right hand corner of the radiator(Driver Side). I have removed the sensor and I did see some antifreeze spill out. I examined the sensor and it is blue in color with a rounded top. I called my local auto zone and received a replacement part but it is green and looks a little different.
I understand that the blue one that I removed is no longer produced. My question is is this the right sensor and the right location? All the write ups I can find say that it is located in the back of the engine yet I cannot find one there. Also when I replaced the blue senor with the green one the fan on my car is spinning at high speed(the AC fan) and will not idle. I am wondering if the new sensor is faulty/ incorrect or if i simply replaced the wrong sensor.
Here is a link to the replacement part I used : [URL] .....
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Plugged in my ScanGaugeII on a whim, it's usually on my 6.5 Suburban daily drivers, but was curious to monitor a few things on the 7.3
Noticed this right away, coolant temp reading a solid -40*F and never budging.
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I was going to order a ECT gauge and was wondering where to mount the sensor. I have already used the port under the T-stat for the coolant filter. The gauge sensor is a 1/8 NPT. Would the block drains be a good location, or is there another location that will work.
I know the coolant filter housing has a port, but I would prefer the sensor be on the motor.
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