Just checked today...mine is leaking. I'm waiting for the leak to cause an intermittent, or open circuit in the connector and the car to stall. Then I'm going to press the little blue button on my rear-view and tell the operator to send a truck to whisk my car away to a dealer. Warranties, FTW.

 

Good info.

 

[QUOTE=MARIN007;3472366]So in this picture is the bolt that holds the sensor on the smaller 10mm looking bolt in about the center of the picture, just above the bend in the high pressure fuel line?

IF that's the case, then could some high temp silicone sealant or something similar be spread around the seal of the bolt to stop the leak? Maven can you chime in here? I'd rather do a simple fix like that myself then take it back to the dealer however many times to get the same part that's just going to start leaking again.

 

mine does not look nearly as bad as this picture

 

I would also appreciate it Maven!

 

Absolutely, Grey RTV and youre good to go

 

got it 2, got to go back to my dealer and tell him. Just told him about my rear pads and rotors.......sunroof noise.

 

I have a quick question about this. When I take my car in for an oil change next time, will they be able to see this leak and let me know about it, or will I have to take it to someone who knows what they're looking for?

 

You will need to tell them what they are looking for, so no they won't see it while changing the oil kinda baried

 

K so how bad does mine look?

 

The bolt directly above the fuel pipe IS NOT the intake CMP sensor. Thats an intake manifold bolt.

That CMP sensor is "upside down" in the end of the head, its easiest to remove that fuel pipe to get to it. In some of the pics if you look at the pipe where it makes the really sharp right hand bend, and then look at about 10:30-11:00 youll see the bolt for the sensor. or kind of follow the vertical section of the pipe straight up and slightly to the left.

Ah ****, nvm.....here it is circled:

 

Sub'd for when I go looking for this (and to fix myself if need be). Good info everyone

 

Yea, that's the bolt I thought it was, I was just too lazy to circle it and repost a new picture so thanks for that So if you take that bolt out the whole sensor comes out correct? Then you could just clean up the seal and mounting surface, RTV the area around the seal and then remount the sensor? If that's all it'll take I'm gonna give it a shot this weekend, mine is leaking but it's very minor and if the RTV will hold then I'll just leave it like that until GM releases a permanently fixed part.

Edit: Quick question for anyone who's replaced this sensor themselves or has access to a service manual; does the oil need to be drained prior to taking the sensor out to prevent it from spilling out the hole? Or does the hole the sensor sits in only ever see oil when the system is pressurized so there is no need to drain? Thx in advance for any replies and help.

 

a little oil less then 1/8 a quart of oil will come out very little amount just put a towel down in that area before and clean the rest up with a can of brake clean

 

Its not pressurized. shouldnt make any more mess than youve already got, LOL

 

just wondering if anyone has attempted to fix the oil leak themselves rather than take it to the dealer,if so what did they use and was it difficult as my 09 with 900 miles on it has the same issue which sucks!

 

Here you go.

 

what he said, that i said

 

thanks for the info!...checked mine...leaking....

and the dealer replaced my high pressure fuel pump a month ago!....they must not have noticed all the oil all over the place when they took off and replaced that pump!!

maven thanks for the easy fix!!

 

So I should probably just call my dealer and ask them if they've heard of this issue and then schedule an appointment for it to be checked?

 

Yeah, but they may not be aware of the issue

 

Make an appointment if you want but this isnt a "known issue". And ive already posted the fix. If the dealer isnt gonna do that youre wasting a trip.

 

Yours is only a temp fix, i would not recommend this for long term, though until GM comes out with there own fix you can do what ever you want to keep it clean or from leaking

 

Its hardly a temporary fix. The oil pan is sealed with grey rtv, not sure I'd call that a temporary sealing solution.

GM has in the past had techs just "seal" stuff up.(CK truck cowl seals, Northstar rear main seals, eco a/c bolts) It wouldnt suprise if they did that here. If you want to try and be more original, or somehow less "backyard" and not use rtv you could source an o-ring with a larger cross section.....oh wait...thats not original either, I already said to do that before too.........not everyone has an 0-ring assortment, or is willing to but one. everybody can get grey rtv.

 

Typical of most dealer techs. No offense to the good techs out there

Gray rtv is supposed to be oil and gas resistant but i have fixed leaks with it before only to have the same problem arise a few months down the road. A slightly thicker viton oring is the way to go unless it is too big. In that case you will cut the oring and cause a bigger leak.