8 replies to this topic

[icy]

Hey guys, I know I haven't been on here lately, after about 8 months I finally seem to have internet again(I just moved and as long as the neighbor doesn't lock me out of his wireless connect, lol) and I could really use some input. I replaced my O2 sensor about a year and a half ago without any real problems until after about 6 months it fell out, hit the road and cracked...grr. So, I went and bought another one, put it in with some lock tight(blue) and it held up for about 2 days before that one fell out, luckily I kept the wires short enough on this one that it doesn't hit the concrete and break. Using the lock tight method I can only seem to keep it in the housing for a couple days, tops, before it falls out again. Sometimes I have to put it in a few times a day because it keeps falling out. I'm getting really tired of burning myself on a hot manifold and my car running like crap everytime it falls out. The housing is completely stripped out and I'm not sure of the best fix. I was thinking maybe a helicoil but I really don't wanna go that route. I was also thinking about tack welding it in but I know that is going to be a pain to get it back out. It's a pretty new sensor so it shouldn't need to come out to be replaced anytime soon but with my luck it will go bad as soon as I tack it, lol. Has anyone else had this problem at all and have a good fix? Thanks!

[EuphoricBlue]

The best fix is to replace the manifold.
The next best thing is to use a helicoil.
You could probably also drill the hole bigger, tap it, and thread a cast reducer in... but that's an even bigger pain in the butt than a helicoil.

I'd just change the manifold. A stock one can be found pretty cheep here or at a pickers.

[Bubba]

The lock tite breaks down at those high temps.

I agree with Euphoric on the proper ways to fix it, but welding it would be easier. It won't take much weld to make it stay in there. Just put a small spot of weld on opposite sides of the sensor and it wouldn't be very hard to remove with a dremmel tool and a cutting disk. Leave the connector unplugged when you weld it or it may fry your ECU.

[icy]

I think I'm going to keep an eye out for a manifold at the local yard i like to visit but until then i'm thinking i'm going to just put two little tack welds on the sensor and then replace the manifold once it starts getting warmer out. oh and thanks for the advice on keeping it disconnected in the process, I didn't even think about that lol. I would not have been a happy camper if I would have to replace my ecu over a damn O2 sensor.

[93hpCRX]

Ive got 2 manifolds in va. that is if you cant find one at a local pick a part.

[JEA86]

why dont you look into an aftermarket manifold?

[icy]

why dont you look into an aftermarket manifold?

Because i'm unemployed right now otherwise I would.

[JEA86]

i have a aftermarket manifold that has some cracks in the pipes themselves if you could find someone that could repair it for you cheap i would let it go for 30.00 Shipped

[icy]

i have a aftermarket manifold that has some cracks in the pipes themselves if you could find someone that could repair it for you cheap i would let it go for 30.00 Shipped

awesome, let me talk to some of my welding buddies and see if i can find someone that could fix it, I am way too accident prone to even attempt welding lol