Manifold off
Thread Starter
2nd Gear
Joined: Sep 2016
Posts: 2
Likes: 0
From: Placerville California
Manifold off
I am having the manifold removed from my c-5 to have a new oil sending unit put in. Is there anything else in the same area I should replace while the manifold is off? I have about 65,000 miles on her.
Racer
Joined: Aug 2015
Posts: 323
Likes: 68
From: Sacramento California
O ring on the cam sensor should be replaced. The knock sensors on these cars often go bad along with their wire harness under the manifold. Take a look at the knock sensors and see if there is excessive rust from water and you could decide if you want to replace them.
Team Owner
Joined: May 2001
Posts: 87,419
Likes: 1,598
From: Western NY
Should this sensor simply lift out? I removed my intake, a couple of months ago, to replace the AIR check valves, and tried to lift the cam sensor out, to provide more room to get at the o/p sensor, since I was going to change it out, since I was in there.
I removed the cam sensor retaining bolt, GENTLY pulled up on the sensor, but it would come out. Now I'm hoping that disturbing it doesn't create a leak.....
I removed the cam sensor retaining bolt, GENTLY pulled up on the sensor, but it would come out. Now I'm hoping that disturbing it doesn't create a leak.....
Racer
Joined: Aug 2015
Posts: 323
Likes: 68
From: Sacramento California
Should this sensor simply lift out? I removed my intake, a couple of months ago, to replace the AIR check valves, and tried to lift the cam sensor out, to provide more room to get at the o/p sensor, since I was going to change it out, since I was in there.
I removed the cam sensor retaining bolt, GENTLY pulled up on the sensor, but it would come out. Now I'm hoping that disturbing it doesn't create a leak.....
I removed the cam sensor retaining bolt, GENTLY pulled up on the sensor, but it would come out. Now I'm hoping that disturbing it doesn't create a leak.....
Last edited by chain_5001; Sep 14, 2016 at 06:36 PM.
Thread Starter
2nd Gear
Joined: Sep 2016
Posts: 2
Likes: 0
From: Placerville California
Great Advice
O ring on the cam sensor should be replaced. The knock sensors on these cars often go bad along with their wire harness under the manifold. Take a look at the knock sensors and see if there is excessive rust from water and you could decide if you want to replace them.
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Team Owner
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Took the words right out of my mouth. 
It's cheap too. I also agree with relocating the OPS as well as adding about a 5" (~) vacuum hose extension to the small nylon vacuum hose that connects to the backside of the manifold. 1/8" ID. Easy to do.Also put the eyeball on the pcv tube assembly. It fits into a grommet on the driver's side and then runs back behind the manifold around to the passenger's side. Check the joints and overall condition. The rubber bits suffer over time and start cracking, etc.
HTH