Crankshaft Position Sensor, where?

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Crankshaft Position Sensor, where?

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Chevrolet Forums >> Chevy Trucks, Vans & SUV's >> Suburban >> Crankshaft Position Sensor, where?

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Crankshaft Position Sensor, where? - 7/14/2007 10:58:23 AM

vf171

Posts: 41
Joined: 5/24/2007
Status: offline

Anyone know where the CKP sensor on the 8.1L engine is? I was over on one of the Avalache forums and all of them said it was on the right side (passenger) near the starter (IIRC). I haven't pulled the starter off and I don't want to if I don't have to. I don't see any extra cables running in that are so now I'm not sure at all.

I do see a connector sticking out of the block on the left side (driver) that is similar to the one on the replacement sensor I have in hand. It doesn't look like the mounting tab will line up though. And I don't see any way on God's green earth I can get it out.

Anyone know for sure where this sensor is? The vehicle keeps stalling and everything I've read leads me to believe it is this sensor. I'd just like to make sure if I pull one it's the right one. None of them look too fun to mess with and I don't want to be under this thing all day.

Post #: 1

RE: Crankshaft Position Sensor, where? - 7/14/2007 6:33:22 PM

RonH

Posts: 399
Joined: 1/31/2007
Status: offline

It's on the top rear of the engine, behind the intake manifold. The EGR valve is in the center, the crankshaft position sensor is on the driver's side next to it. The engine oil pressure sensor is on the passenger's side next to the the EGR valve. There's a large wire bundle splitting off to all three of those components. The connector to the CKP sensor has 3 pins, wiring colors are light green, a yellow/black, and a dark blue/white.

You need to raise the vehicle andremove the fuel line bracket from the bellhousing stud, then from obove remove the driver's side ignition coil bolts and reposition the coil to get to the sensor. Disconnect the electrical connector. Use penetrating oil around the sensor and allow it to soak in, then remove the CKP sensor bolt and gently twist the sensor back and forth. When it's free, remove it.

Have fun

(in reply to vf171)

Post #: 2

RE: Crankshaft Position Sensor, where? - 7/14/2007 6:33:40 PM

RonH

Posts: 399
Joined: 1/31/2007
Status: offline

.

< Message edited by RonH -- 7/14/2007 6:35:22 PM >

(in reply to vf171)

Post #: 3

RE: Crankshaft Position Sensor, where? - 7/15/2007 2:22:53 PM

vf171

Posts: 41
Joined: 5/24/2007
Status: offline

Ron,
Thanks for the info. I actually found it not too long after I posted this question. It was the one I feared it was. I noticed the fuel line bracket in the way so I went up top and tried to reach back behind the engine. No way! I did remove the coil and laid it aside and I could get my hands on it but trying to tak it out would have been a joke. I'm not a small guy but I'm not huge either, regardless it isn't coming out with me behind the wrench.

Is there a trick to getting it out? I don't think I can even reach the bolt for the fuel line bracket so removing that seems to be just as hard as removing the sensor itself. I have a garage full of tools and generally I can find a way to make stuff work for me but I'm just not visulizing how this can work. Since it's my wife's daily driver I can't afford to let it set if I somehow manage to get this thing out but can't get it back in. I could always have it towed if I fail but then I'd be out almost as much if a garage does this for me.

Anyone have some pointers on how to get this thing out? I'm all for saving money and doing the job myself but not at the expense of spending two days wrenching on this thing.

Help?

(in reply to RonH)

Post #: 4

RE: Crankshaft Position Sensor, where? - 7/17/2007 3:27:19 PM

vf171

Posts: 41
Joined: 5/24/2007
Status: offline

Done and done....

$84 @ the dealer (supplied my own part). More than worth the headache I was looking at. Thanks for all the help though.

(in reply to vf171)

Post #: 5