Anyone know where can I get a crank sensor grommet other than a salvage yard? Ya know, the rubber piece in the top passenger edge of the bell housing. I called dealer and no go. Also tried advance, napa, and autozone with no luck. I just fully rebuilt my tranny and this is all that is holding me up.

Thanks
Ridler
'94 Dak 4WD

 

You can look in my glove box... I left mine out.

I'd try a junkyard.

 

you don't need it.

 

So I don't need it? Why not? I believe I need it, the engineers thought I needed it. Ok so I technically do not need it 'cuz I can make a suitable replacement. I believe I need it to keep dirt, dust, grime road salt and water out of a transmission I spent over $400 and 35 hours on, cleaning and building and measureing 'cuz the 2 weight governor is 5/100ths narrower than the three weight governor (and the three weight scraped the housing) and those OD's with different weights are twins but not identical. The input shafts are of different sizes in the front. My original pump would not fit on my rebuild. But I knew that through measurement and changed the shafts. Anyway i guess no junk will get into my tranny but it could work it's way to that crank sensor, So would someone please give me a logical reason why that grommet is not a needed item. I'm just being cautious!!

Thanks folks
Ridler

 

I've run mine for 2 years without that grommet. Unless you're fording rivers, it's in an extremely safe location.

 

Perhaps I could give it a shot of RTV. Couldn't hurt right? What do you think Aim4squirrels. One day I may have to cross a river. It floods here on occasion. We had a hole in my road that you could have fit three school busses in with their rooves even with the paved surface. Really bad flood in '06. I hope I don't see that kind of water again but if I do I want to be ready for it. If I cant find a grommet I'll at least goo it up.

THX
Ridler

 

Its not for that...........if that was the case the bottom of the bellhousing will take in water, I know this cause I left my grommet out .........it is for insulation from heat, the bell housing and transmission can get VERY hot , i installed a crank sensor and it only lasted about 2 years, I started noticing it when the truck would idle for a long time at stores, i would get a jerk on the engine, and I knew it was the sensor, my scan tool verified it, when it was removed I noticed the epoxy had bubbled and melted up, and caused it to short out when it was that hot, I went on a trip thinking all was ok last saturday, 2 hours later it died leaving me there untill it cooled off, i have a new one in there now and am looking for this grommet, also, the dealer can get them , but if you think it is not needed dont put it in, when you buy one read the instructions, of how important that grommet is, on the install, ALL of them recommend it to be put back in.

 

If your dealer can get it, please post up the Mopar part number.

 

You can make your own out of a high temp molding compound. Use the sensor as a mold for the ID. The potting compound shall be of high temp, have superior elasticity, have a high tolerance for oils and solvents, shall have a wide thermal range and remains pliable at low temps.

I have a material handbook but, it's packed up at current but, the material your looking for is a potting compound or molding compound.

I find it hard to imagine that no one has those on a parts list someplace. Perhaps it's one of those items that's hard to source due to out of production status.

In any event, if it came with a grommet, it's there for a reason and, the reason is to keep out dirt and debris as well as providing a means of shock absorption on the sensor body. This helps to stabilize the sensor body and to prevent it from vibrating thus making it more accurate.

CM

 

Moparpartsoverstock.com part # for 92-03 is 52117709