Broken Exhaust Sensor

neil64 · #1 (**permalink**) 10-26-2010, 12:56 AM

My exhaust sensor is broken on my DPF. It broke trying to take it out of the DPF. So now I have part of the sensor still in the DPF's bung.

Any tips on how to get the broken part of the sensor out of the bung without damaging the threads?

Thanks...

Neil

**greasltn** · #2 (**permalink**) 10-26-2010, 04:31 AM

Use lots of penetrating oil, let it soak for a couple of days. Then grab the top of it with vice grips and smack the handle with the palm of your hand to "shock" the fitting. It should come out without too much trouble.

neil64 · #3 (**permalink**) 10-26-2010, 09:44 AM

It broke off pretty clean and I have nothing to grab on to. I was thinking of trying to drill it out but I am worried about damaging the threads. Never-the-less, I will being soaking it with PB Blaster.

Thoughts?

**greasltn** · #4 (**permalink**) 10-26-2010, 11:11 AM

You could try a left handed drill bit, once you get deep enough it may grab and spin out.

neil64 · #5 (**permalink**) 10-26-2010, 02:05 PM

I have never heard of a left handed drill bit. Are they avaialbe at Harbor Freight or Sears? Any idea what size I need?

Thanks...

blackcloud2k · #6 (**permalink**) 10-26-2010, 02:49 PM

I think he is talking about an easy out for broken bolts, drill a small hole and start to screw it in and it should start to back itself out. This is taking into account that you have soaked it in penetrating oil for a few days...

my1stdiesel · #7 (**permalink**) 10-26-2010, 03:40 PM

Quote:

Originally Posted by blackcloud2k

I think he is talking about an easy out for broken bolts, drill a small hole and start to screw it in and it should start to back itself out. This is taking into account that you have soaked it in penetrating oil for a few days...

They do make left handed/reverse drill bits but I think a ez out might work also. The sensor bolt should already have a hole right? Is there any part of the sensor stem blocking the hole? If not and you just have a clean break with nothing blocking the hole then you can get a ez out or reverse drill bit and try to extract it. Either way I would buy a kit with 3 or 4 different sizes.

L-Force · #8 (**permalink**) 10-26-2010, 03:53 PM

I would try an ez out or extractor. I bought this set awhile back for my JD lawn mower, it worked great.
Shop Kobalt 10-Piece Screw Extractor Drill Set at Lowes.com

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