Broken Camshaft Position Sensor fallen into Timing Chain Cover. What are my Options?

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jeff2007 Yukon

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Hello Yukon Experts. I could sure use your help.

I have a 2007 Yukon Denali 6.2L and was replacing the camshaft sensor but it was wedged tight. After working on it for sometime I was able to get most of it out but the last 1/4" of it pushed back into the timing cover while I was trying to get a screw into it.

This truck has has 210,000 miles on it and I am wondering if there is a creative way to get it out. Can I drive with it in there or do I need to remove the whole front end to get it out.

Thank you in advance for your help and insight.

Jeff
 

strutaeng

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Oh wow. I would say remove the front timing cover and hopefully you can retrieve it. It would suck if you tried started the engine and the sensor somehow gets caught in the timing chain/sprockets.

Rent a harmonic balancer removal tool. Then heat the big bolt with a torch and remove it with an impact. To reinstall the (new) bolt, you'll need to get creative to tighten to the proper angular specification. Otherwise buy the tool that bolts to the flexplate to tighten it. You'll need to remove the starter. That's probably the hardest part for that job...

Worse case scenario the broken sensor fell into the oil pan.

Good luck.
 

Geotrash

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Hello Yukon Experts. I could sure use your help.

I have a 2007 Yukon Denali 6.2L and was replacing the camshaft sensor but it was wedged tight. After working on it for sometime I was able to get most of it out but the last 1/4" of it pushed back into the timing cover while I was trying to get a screw into it.

This truck has has 210,000 miles on it and I am wondering if there is a creative way to get it out. Can I drive with it in there or do I need to remove the whole front end to get it out.

Thank you in advance for your help and insight.

Jeff
Bummer man. I agree with Carlos. You definitely don't want to start it with that in there. I would wager that you'll find it when you get that timing cover off - not much clearance for it to get down into the oil pan, but I've had to pull that too. Plan on a long Saturday if you have to pull the pan as well. Use the OEM Tools brand harmonic balancer puller (many parts stores will loan you one) and you'll need a heavy duty impact wrench to get that Jesus bolt off. I had to pull my fan shroud and radiator to get enough clearance with my big motha air impact. If you have time on your side, order the ARP harmonic balancer bolt for reinstalling the harmonic balancer because it's reusable and doesn't require an angle gauge to torque it down. Some ugga duggas with that impact wrench will fix you up.
 

adventurenali92

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That’s not a fun surprise on what should be a simple sensor swap. I feel your pain…… as these guys have said pull the timing cover. It’s pretty easy once the drive accessories are out of the way…. Just did it with having to pull my oil pan and replace seals and the pickup tube o ring. And I redid the timing cover seal as it was leaking and replaced my pump as well. It’s a day job for sure just getting the accessories out of the way and then opening the timing cover. But it’s doable. It can be done with basic tools plus a good powerful impact.
 

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