I replaced my leaking intake gasket on my 01. Runs like a dream no leaks. For anybody that has to do this,it is best to put all of your bolts in baggies and label them, he'll I even filmed myself taking some stuff apart. Clean everything,take your time, and use a torque wrench. Most of it is in-lbs not ft-lbs. This is also a good time to replace hoses,thermostat,and anything else you might have to remove. Question, I was going to change the plugs, but the manifold had me stressed and it looked difficult. Ideas? Thank all of you for welcoming me to the site. Hi from indiana.

 

Welcome.

Changing plugs, wires, distributor cap and rotor are almost too easy to replace while the engine is torn apart. I definitely suggest doing all those at the same time if it's needed.

If the engine is already back together, (sounds like it is since it doesn't leak) then changing plugs, cap and rotor are just as easy, but plug wires will be a little more difficult. For the plugs, you shouldn't need much other than a gap tool, SP socket, various extensions and a wobble joint. When you get to the plug behind the steering shaft, turn the wheel to get a batter angle at it. Also forgot to mention, take off the wheel from whatever side you're working on. Makes it a lot easier. It really shouldn't take more than an hour. Good luck.

 

I have ngk plugs in my cars, quads,and chainsaws, so I have become attached to ngk. So I got a set of ngk g-power tr55gp plugs. Does anybody use these. Opinions please? The only other repair I have to do is some kind of oil leak,it's not motor oil,trans,ps or brake. I think it's coming out of transfer case. I'm going to look in to it this week. Is there any seals or gaskets that are common to leak? Thanks

 

Sorry my spell checker put MGM instead of ngk.

 

If you look around or stay here long enough, you'll see that AC Delco is basically the "Go to" for these trucks. Never used any other brands, and with the performance I get out of Delco, I really don't see a need to try any others.

As for your leak, check your differential seals too. One of mine failed, but magically fixed itself.

 

Couple things... AC Delco is now primarily an aftermarket company. When you know WHERE AC Delco gets their parts you can use them.

Delphi is the OE mfr {or supplier} for many items, including Fuel Pumps. It would make no sense to buy an AC Delco fuel pump if you can get a Delphi cheaper.
And
NGK makes many AC Delco plugs

 

Hey, thanks for the info. I buy ngk because I work for an automotive supplier and sorry to say in Japan they hold tighter tolerances,over engineer and have higher quality standards.

 

I used ngk iridiums. Good plugs but I did have some trouble threading one in. Could put the old plug in but new one wouldnt start. Tried three more and all no go. Chased the threads and finally got it. So much for tight tolerances.