99 Suburban Tune Up

[EmersonHart13]

Picked up a 99 Suburban Sunday night, pictures soon, and I am going to do some general maintenance. It has the Vortech 350, L31 I think...

Let me know what you think I should check and/or replace.

Here is my quick list so far...

02 Sensors
PCV Valve
Fuel Filter
Air Filter - Fine
Change oil and filter - Done
Plugs
Differentials
Wires
Cap and Rotor
Clean MAF/EGR/TB - Done
Clean IAC

Trans Fluid?

Thanks in advance,

John

Click to read more...

 

[Bob Kazamakis]

What about diff's, transfer case an possibly trans fluid?

 

[Bob Kazamakis]

Oh and congrats John!

 

[EmersonHart13]

Trans fluid is one of those things... When it gets up in mileage alot of people say to just leave it?

Diffs, never though of that. First non FWD car!

 

[Bob Kazamakis]

That's why I said possibly trans fluid

Besides....

 

[EmersonHart13]

LOL, AMSOIL does cure all, I should probably just lather all over the truck and then everything will be fine.

 

[EmersonHart13]

Last night I:

Cleaned the MAF
Cleaned the EGR and replaced the gasket
Cleaned the TB
Air filter is good
Changed the oil

Everything was in good shape and there was 'gunk' to clean but not an excessive amount like I expected.

I also installed a new battery.

 

[Smokinhot]

seafoam it BEFORE you change the plugs and stuff, you'll see a big difference

 

[EmersonHart13]

I will do that before, I have no problem going back in to clean the sensors again after, that is pretty easy. I haven't moved it out of the driveway yet. LOL, I need gas and that is not going to be pretty.

 

[Bob Kazamakis]

People still use sea foam? Always seemed like a magic elixir to me

 

[EmersonHart13]

I use it in my riding lawn mower and it works good. That thing is from the late 70s so it needs magic to keep on going.

 

[Bob Kazamakis]

I've never used it.

Anything from the 70's is already magical :wink:

 

[EmersonHart13]

LMAO, good point.

My wife's tC really likes the fuel system cleaner with Regane. Whereas my GXP runs the same no matter what crap I throw in the tank.

 

[Eagle]

Nice man! Congrats! What'd you pay?

 

[EmersonHart13]

3k, I'll get some photos up this weekend. IMO worth the money. Suburbans seem to not like to dip that low and if they do they are absolutely beaten up. The inside on this is beautiful and the outside is free from major defects. The only negative is the motor swap, but it is more of an unknown than a negative at this point.

And thank you.

 

[Eagle]

They usually are a good value for the dollar.

 

[EmersonHart13]

Took a look at the rear diff and I think it is leaking ever so slightly. So I will have to look into servicing those and the transfer case. I will probably skip the trans as it shifts fine and too many horro stories about changing fluid on a high mileage one.

Installed the dog barrier in the back tonight. Bad instructions made that take longer than it should have. One dog got right in but the other is scared of everything... lol

The previous owner had like double the tire pressure in the tires! Doh. Rides much better now. Also I replaced a taillight bulb.

Working through my list little by little...