My new project truck: '99 K2500 Suburban

[Dravec]

At this point, I'm truly stumped, and rather frustrated.

 

[stutaeng]

Cap and rotor are off, but my problem is that the sending unit is just almost touching the block. Close enough the socket won't fully seat on the sending unit because of how close it is to the block.

Must be different on the BBC then. Here's what mine looks like, with engine out of the truck. I had forgotten it's actually at an angle.

 

[Dravec]

Must be different on the BBC then. Here's what mine looks like, with engine out of the truck. I had forgotten it's actually at an angle.

Here's what I have going on.

 

[454cid]

Yup. This is what I have. It won't fit between the sensor and the block. I'm afraid the sensor is cross threaded. Or it's maybe bent. I dunno. But the top broke off, so it has to come out and be replaced.

Hmm, hopefully bent and not cross threaded. Given that it's already broken, and you've got other stuff around it taken apart, can you get it off with a small crescent wrench or maybe large slip joint pliers from the top? Then figure out where to go from there?

I know the typical small Crescent wrench won't open wide enough, but there are some newer ones that open quite wide.

On that picture, do I see a broken wire coming out of that smaller diameter plastic wire loom?

 

[stutaeng]

Your socket doesn't have the hex pattern all the way to the end of the socket?

This was my second socket. The first one I had bought at the local parts store, and the smooth inside diameter was machined or cast too tight. When I slid it in I turned it and broke the sender. I think it was the OEM generic brand. I had to return it and buy this one.

I looked at mine and it looks like this:

 

[Dravec]

Hmm, hopefully bent and not cross threaded. Given that it's already broken, and you've got other stuff around it taken apart, can you get it off with a small crescent wrench or maybe large slip joint pliers from the top? Then figure out where to go from there?

I know the typical small Crescent wrench won't open wide enough, but there are some newer ones that open quite wide.

On that picture, do I see a broken wire coming out of that smaller diameter plastic wire loom?

Yes you do. Cam position sensor wire. It's "southern engineered" all the way over to the plug on the black box. Brown wire coiled on top of the harness, blue butt splice connector at the ECM plug.

 

[Dravec]

This is the socket I have. The inside is fine. My problem is the wall thickness of the socket is too thick to fit between the sending unit and the block. Because either the sending unit is bent, or worse, cross threaded.

I'm giving up on the sending unit for tonight, and I'm just gonna take the socket to work and have one of the machinists turn down the OD on this socket. Hopefully that will allow me to seat it on there sending unit.

 

[454cid]

I'm giving up on the sending unit for tonight, and I'm just gonna take the socket to work and have one of the machinists turn down the OD on this socket. Hopefully that will allow me to seat it on there sending unit.

That sounds like a pretty good plan.

 

[Dravec]

That sounds like a pretty good plan.

Just frustrating is all. I was all primed to get the fuel system put back together tonight....

 

[HotWheelsBurban]

Just frustrating is all. I was all primed to get the fuel system put back together tonight....

Yup I heard that! Don't some engines have a brass angle fitting on the oil pressure sending unit for that reason( little to no clearance)?.