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Wiring problem

Tiny
JW7684
  • MEMBER
  • 2009 CHEVROLET SILVERADO
  • 5.3L
  • V8
  • 2WD
  • AUTOMATIC
  • 160,000 MILES
I recently tore down my engine to replace #7 valve lifters. I got it back together but missed a plug somewhere and can't figure out where it goes. The plug is located by the firewall at the back of the intake manifold almost same general area as the dreaded oil sensor. Or at least that's where I'm finding the lose plug, it's blue. Can someone please tell me where this goes.
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Monday, August 2nd, 2021 AT 5:33 PM

7 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,322 POSTS
Hi,

That's a tough one. How many wires are going to the connector? Also, what color are the wires?

If you look below, I attached three pics identifying electrical components that need to be disconnected to remove the intake. See if anything sticks out to you as a possibility.

Let me know.

Joe

See pics below.
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Monday, August 2nd, 2021 AT 9:53 PM
Tiny
JW7684
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  • 10 POSTS
Red (could be pink), green, blue, grey and orange.
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Tuesday, August 3rd, 2021 AT 6:20 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,322 POSTS
Hi,

That is attached to the valve lifter oil manifold. It took some time to find it looking through schematics, but eventually, I did.

Pic 1 shows the connector, pic 2 shows the component and I highlighted where the connector is, and pic 3 shows the connector on a new component.

You should be able to access it with the intake on the vehicle, but it will be a little more difficult. Use a mirror to see if you are able to see it under the intake.

Let me know if this helps.

Take care,

Joe

See pics below.
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+1
Tuesday, August 3rd, 2021 AT 7:35 PM
Tiny
JW7684
  • MEMBER
  • 10 POSTS
Awesome, I will try and get it hooked up this evening. Thank you
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Wednesday, August 4th, 2021 AT 5:30 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,322 POSTS
Hi,

You are very welcome. Let me know how things turn out for you.

If possible, would you consider rating the site? If you don't want to, it's no problem whatsoever. Here is the link if you consider it:

https://www.sitejabber.com/reviews/2carpros.com

Also, please feel free to come back anytime in the future, You are always welcome here.

Take care,

Joe
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Wednesday, August 4th, 2021 AT 9:21 PM
Tiny
JW7684
  • MEMBER
  • 10 POSTS
It did the job. Right now my map sensor is acting up but I figure it's from rolling the intake on its side to clean it up before installing new gaskets. Going to try to clean it up with some brake cleaner and see if it does the trick.
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Sunday, August 8th, 2021 AT 8:10 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good job.

Let us know if you have any other questions. We will be here if you need additional help

Roy
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Wednesday, August 11th, 2021 AT 3:46 AM

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