2002 5.3 intake manifold gasket replacement.

[R422b]

I need to replace the intake manifold gasket on my flex fuel 5.3 Tahoe and I was wondering if there is anything in particular I should know about?
I did a forum search but I couldn't find anything.

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[R422b]

I hear of people putting rtv or various gasket sealers around the openings in the gasket so I was wondering what everyone's opinion on that is.

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[Livebai8]

I need to replace the intake manifold gasket on my flex fuel 5.3 Tahoe and I was wondering if there is anything in particular I should know about?
I did a forum search but I couldn't find anything.

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I did the same for my 02...i did so because I had to replace the knock sensors so I changed the sensors...new pigtail, and them went ahead and did intake gasket. I also cleaned the inside of intake, and cleaned all the fuel injectors. It's one of those times where if you open it up replace everything. The only thing i didn't do was the oil sensor.

02 TAHOE LS 4X4
5.3l FLEX FUEL
285/70/17 W/Z71 RIMS


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[R422b]

I did the same for my 02...i did so because I had to replace the knock sensors so I changed the sensors...new pigtail, and them went ahead and did intake gasket. I also cleaned the inside of intake, and cleaned all the fuel injectors. It's one of those times where if you open it up replace everything. The only thing i didn't do was the oil sensor.

02 TAHOE LS 4X4
5.3l FLEX FUEL
285/70/17 W/Z71 RIMS


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Good idea. I will definitely clean everything.

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[Livebai8]

Good idea. I will definitely clean everything.

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It was my first time so I took pics, notes and even printed out the torque sequence!!

02 TAHOE LS 4X4
5.3l FLEX FUEL
285/70/17 W/Z71 RIMS


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[Sam Harris]

You also want to build up a small dam of rtv around those knock sensors. They have an issue with corrosion getting down into the sensor holes, so it’s a good idea to stop that next time around. Like so:

 

[R422b]

I wonder if I should replace the knock sensors while I am in there?

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[Sam Harris]

I wonder if I should replace the knock sensors while I am in there?

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If I were doing this job, that would be a no brainer.

 

[Livebai8]

I wonder if I should replace the knock sensors while I am in there?

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Yessir...mine were throwing codes...i did the rtv dam as well

02 TAHOE LS 4X4
5.3l FLEX FUEL
285/70/17 W/Z71 RIMS


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[Fless]

I wonder if I should replace the knock sensors while I am in there?

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Knock sensor harness, too.