speed sensor location

Transmissions, Clutches, torque converters, Gear ratios, Brakes, Pads, etc.

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JohnnyC
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Post by JohnnyC »

Err... actually no... You can only see it from the top of the engine.

I don't have a pic handy and my wife has the car so I can't take one.

Here's a description on how to find that thing:

Stand in front of your car looking at the engine. Put one hand on the top of the engine and lean WAY back to the back of the engine and look straight down. There is a bunch of tubes and wire clusters that go through back there. Using your right hand reach down under the right side of the engine and squeeze your arm down and push those hoses towards the front of the engine. Right below those tubes is the speed sensor... which is actually a distance sensor.

It is not easy to reach at all (I got all kinds of little scrapes on my arm from screws and such as I was getting my hand down there to get it out.

The only place in the US I could find a new one (I didn't get many responses for used ones and I don't recommend getting a used one anyway) was from www.DaewooUS.com. Here is the part information:

*Part No.(Description) --- Unit Price * Qty = Ext. Price
------------------------------------------------------------
*96190708(SENSOR A-DISTANCE) --- $20.76 * 1 = $20.76

***WARNING***

Unless you want to go through what I had to go through, be very careful when you remove it.

Pull it straight out and check to make sure the small gear (which is made of plastic) is still connected to the distance sensor. If it is not... you need to be VERY VERY careful when removing it. Mine was sheered off from it jamming and the gears of the transmission twisted it right off the end of the sensor. I reached down into the hole with a pair of needle nose pliers and grabbed ahold of the little gear which was resting down inside the hole. When it was 3/4 the way out of the hole, the pliers slipped and the little gear fell back down, but didn't stop there. The right side of the hole is open to the transmission. The little gear fell completely inside the transmission and down to the bottom. From there I had to remove the transmission pan (whatever that's called) and in the process let all the transmission fluid out. In the bottom of the pan was of course, the little plastic gear... very annoying.

If you end up having to remove that gear from your transmission, be careful not to damage the gasket as you remove the pan. Otherwise you might end up having to buy one of those too. If you don't have a second car, make sure you have two quarts of SAE 80W - GL-4 rated gearbox oil. You might need to call around as GL-5 is the more common type these days. That way if you do drop the gear, you can do all the things I mentioned above and then re-fill the transmission with fluid before you try driving it anywhere. And don't drive it if the gear is stuck down there... you need to get it out first.

They call it a Distance Sensor because it actually measures the distance the gear travels and the rate at which it is traveling... giving you both speed and odometer information. I assume you could also get tach information from the same unit, but since I don't have a tach and haven't installed a new cluster, I don't really know if that's entirely true.

Here is a picture of what mine looked like when I took it out:

Image
Image

Notice how it's twisted right off the end...

I still have the little gear that fell in, but I don't feel like taking a picture of it at the moment. :)

If you have any other questions, let me know and I'll do my best to help.
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lanos2001
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Post by lanos2001 »

oh my bad i figured since it was on the tranny you could only get to it from the bottom. did you take it off from the top? or are you just saying thats just how to look at it?


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wessock
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Post by wessock »

But everybody in the thread is saying it can only be seen from above, not under the car.
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lanos2001
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Post by lanos2001 »

yeah sorry for the confusion. i was thinking in the means of working on it. not just to see it. but then again i might be wrong there as well. basically just ignore my posts in the thread. :smt086


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JohnnyC
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Post by JohnnyC »

Yeah... You might be able work on it from the bottom... but you wouldn't be able to see it and you would be working by touch alone (not fun)... Of course it really isn't an easy part to get to no matter how you do it. I've only worked on it from the top :)
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Post by wessock »

Oh, ok. No problem. I'm still having a hell of a time finding this thing without a picture of an area to look down at. Man does this make me miss my Haynes manual that I use for my Explorer. How about this, I'll go out and snap a pic of the engine bay. Maybe one of you guys can grab the pic, add an arrow pointing to the right area to look, and then post it back on here?
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Post by wessock »

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Efratech
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Post by Efratech »

is that an auto tranny? the one on the picture?
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Post by Efratech »

because the pic on the 1st page is for the manual lanos
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Post by MMamdouh »

follow the yellow arrow till you reach the tranny case... you are a bit low on coolant and your brakes fluid needs replacment.
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lanos2001
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Post by lanos2001 »

only you would notice that mmamdouh. :lol: good lookin out for him though.


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Post by MMamdouh »

yeah i am kinda used to look at those particular stuff whenever a car hood is poped like coolant, brakes fluid, A/C belts, wire sockets, vacuum lines, fuel lines and all.

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Post by wessock »

Thanks a lot. Yeah it is an auto. I didn't notice anyone mention manual or auto so I thought the location was the about the same on either. So is the location completely different on an auto tranny? I just brought this thing home last night so I haven't gotten to basic things like fluid levels yet. I noticed on the way home that the speedo wasn't working right. I need to order a new front bumper impact plate so I figured I'd try and check the speedo problem while I'm ordring parts.
Thanks again.
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Post by MMamdouh »

OH... i got no idea about the whereabouts of the auto tranny sensor.

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JohnnyC
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Post by JohnnyC »

Auto? Whassat? hehe ;)

Actually... I have no idea where they would sneak the auto sensor? Seems like it would be near the wheel on that... Dunno though :(
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