coolant leak and oil leak around sensor on valve cover 5.0
08-22-2016, 03:48 PM
#1
coolant leak and oil leak around sensor on valve cover 5.0
Did an oil change yesterday on my 5.0 2015 F150 and noticed two leaks. First I noticed coolant leaking down to the frame near the oil filter and traced it back up to the top of the radiator somewhere. Next I noticed it looks like a sensor on the passenger side valve cover is leaking some oil too. Does anyone know what sensor this is? Is it a VCT sensor? Anyone else have a leaking radiator? I'm dropping it off at the dealer in a few days but want to learn more about it for when I drop it off.
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F150bowtie (01-19-2024)
08-22-2016, 04:02 PM
#2
Yeah that is the VCT sensor actually....
08-22-2016, 08:28 PM
#3
I too have a 2015 with the 5.0 engine. The dealer just had to replace the radiator last week do to a leak. They stated that it was a defective unit. After install I was still having the same issue along with bubbles in the overflow tank. Im still trying to sort it out.
https://www.f150forum.com/f118/5-0-c...oolant-354558/
https://www.f150forum.com/f118/5-0-c...oolant-354558/
08-22-2016, 08:30 PM
#4
Senior Member
I too have a 2015 with the 5.0 engine. The dealer just had to replace the radiator last week do to a leak. They stated that it was a defective unit. After install I was still having the same issue along with bubbles in the overflow tank. Im still trying to sort it out.
https://www.f150forum.com/f118/5-0-c...oolant-354558/
https://www.f150forum.com/f118/5-0-c...oolant-354558/
08-24-2016, 09:47 AM
#6
I looked at it again yesterday and found where it was leaking coolant, it looks like its leaking at the top of the radiator out of the black plastic tank on the drivers side. I just dropped it off at the dealer this morning and have yet to hear back, I'll let you all know what they say. Anyway here is a pic of it leaking.
08-24-2016, 02:39 PM
#7
Senior Member
Did an oil change yesterday on my 5.0 2015 F150 and noticed two leaks. First I noticed coolant leaking down to the frame near the oil filter and traced it back up to the top of the radiator somewhere. Next I noticed it looks like a sensor on the passenger side valve cover is leaking some oil too. Does anyone know what sensor this is? Is it a VCT sensor? Anyone else have a leaking radiator? I'm dropping it off at the dealer in a few days but want to learn more about it for when I drop it off.
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08-24-2016, 07:04 PM
#8
dealer called me back and said they ordered a new radiator and will be putting it in. Also said that they couldn't tell if the oil leak on the valve cover was coming from the sensor or the oil filler cap (which is total bull****). He said they cleaned off the valve cover and put a UV dye in the oil and IF they see the oil leaking from the sensor with the UV light then they will fix that, if not then they are not going to do anything with the sensor. That pissed me off a little because as you can see from the picture it is clearly coming from the sensor and not the oil filler cap. He flat out lied to me about that but whatever, I get they have to go through procedures and what not. Just wanted to update in case anyone was wondering.
08-26-2016, 05:48 PM
#9
not sure if anyone cares, but they replaced the radiator and left the dye in the oil and said to keep an eye on the sensor to see if it leaks and if it looks like it is leaking to stop by and they will look at it under the uv light. He said they didnt want to just replace the sensor unless they were sure because in order to replace it they have to pull the whole valve cover off.
08-26-2016, 06:24 PM
#10
Senior Member
From the pics, I can see why they think leaking from the oil filler cap may be a possibility. I would just clean it off really good and see what happens.