2002 5.3 intake manifold gasket replacement.

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JonnyTahoe

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Its a 15 minute job without a transmission in the way. Its just a few bolts and some sealant.

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It would take me 15 mins just to make sure the engine is as clean as possible. Than 10 mins of double checking everything. Maybe 30 mins.
 
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R422b

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You may re-think the dealer when they quote you the prices. Good Luck.
I just got a set of six spark plugs for my sister-in-law's Impala and the knock sensor harness and oil pressure sensor for my Tahoe because I couldn't get those on RockAuto and that ran me $215.
I think that's not too bad and at least I'm supporting a local company that way.

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treehan77

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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:
7a6e64c53376c738ca9909790261d9af.jpg
I skipped the RTV dam. My knock sensors were pristine at 193k miles, so I figured why bother
 

Matthew Jeschke

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I want to hug the engineer that designed intake gasket and valley cover for gen 3+ small block. Done a handfull of intake gasketa and gen 3 is a breeze compared to others.

Fyi, not sure what everybody else said but I kept my foam blocks. lots of people throw them away.

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R422b

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I want to hug the engineer that designed intake gasket and valley cover for gen 3+ small block. Done a handfull of intake gasketa and gen 3 is a breeze compared to others.

Fyi, not sure what everybody else said but I kept my foam blocks. lots of people throw them away.

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Yeah I googled it to figure out what it was and if it's not falling apart or something crazy I'm leaving it.
I just placed an order for the knock sensors and camshaft position sensor on RockAuto.
The oil pressure sensor and knock sensor harness will be coming in a couple days at GM and I will probably do this next weekend before I do damage to the motor.

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