Maintenance Items...

[Hydengr]

Folks,

Truck in sig below has 140,000 miles. I have a good friend (mechanic) visiting in a few weeks and we're going to go over and address a few items that I have not taken care of in the past. Truck is garage kept and in very good condition, runs very well. Here's what I have done in the last few years:

All drivetrain fluids replaced.
Coolant replaced.
Serpintine belt and idler pully recently replaced.
Plugs, cap, wires done at 100K
Intake manifold gasket

Here's what we are planning:

Replace soft brake lines w/ braided stainless (suggestions for source appreciated)
Brake fluid flush
Power steering fluid flush
Inspect all front end components, ball joints, etc.
Inspect brakes (pads/shoes have been replaced)
fuel filter (it has been replaced twice)

Let me know what I'm missing, thanks.

Mark

 

[SCOTTYINWV]

Clean the throttle body and egr. Maybe even think about replacing the catalytic converters

 

[Blue95]

Folks,

Truck in sig below has 140,000 miles. I have a good friend (mechanic) visiting in a few weeks and we're going to go over and address a few items that I have not taken care of in the past. Truck is garage kept and in very good condition, runs very well. Here's what I have done in the last few years:

All drivetrain fluids replaced.
Coolant replaced.
Serpintine belt and idler pully recently replaced.
Plugs, cap, wires done at 100K
Intake manifold gasket

Here's what we are planning:

Replace soft brake lines w/ braided stainless (suggestions for source appreciated) Russell sells a great kit
Brake fluid flush Get a bleeder kit or do it one caliper at a time starting at the back, spray the bleeders with WD40 though a few days in advance
Power steering fluid flushI sucked all I could from mine, replace, run it, suck it out, until pretty red.
Inspect all front end components, ball joints, etc. grease everything, jack one side up at a time and use a pry bar under the tire to check for play
Inspect brakes (pads/shoes have been replaced)
fuel filter (it has been replaced twice)

Let me know what I'm missing, thanks.

Mark

Replace plugs again, check wires, check air filter and as said above take apart the TB and clean really well.

 

[SCOTTYINWV]

I would also drain and refill the trans with some fresh syncromesh. I used penzoil in mine and it really cleaned up the feel and sound of gear changes. The trans just worked smoother as a whole.

 

[RyanMerrick]

No sugesstions, sounds like a solid to do list so far. How do you like your Mag-Hytec? I've been tempted by it for a few years.

 

[Hydengr]

Appreciate the feedback so far.

Plugs are AC Delco's and "only" have 40K on them. Do you really think that they need replaced? NV3500's gear oil was replaced about 20K ago; refilled with correct GM syncromesh fluid.

Cleaning TB is now on the list, thanks!

RyanMerrick; I do like the Mag-Hytec Cover. Higher capacity has to be a good thing. Refilled with synthetic fluid. No issues, next change will be a breeze with the drain plug!

Anything else??

 

[skylark]

Change the front O2 sensors. They get sluggish over time.

 

[SCOTTYINWV]

^ one of the most common overlooked things. Noone thinks they need replaced until they throw a code.

I would also change to a merge pipe with a new thunderbolt 3 cat converter. Well worth the $70 or so it costs. 140k on a stock cat is probably slowly stopping up and robbing power.

 

[Hydengr]

Skylark,

Front O2's have been replaced... 1 at ~50K, the other at ~75K. Left that out, sorry!

Is there anyway to "test" or assess the condition of one's cats?

SCOTTYINWV; I'm not familair with what you've referenced (merge pipe with a new thunderbolt 3 cat conver) but I will "google it" and see what I can find.

Thanks guys, your knowledge is much appreciated...

Mark

 

[SCOTTYINWV]

I got lost in a train of thought thinking the vortec trucks had a dual in single out cat instead of 2 separate ones. I would replace both with 2 of these.
http://m.ebay.com/itm/2-5-Thunderbolt-Catalytic-Converter-High-Flow-Stainless-Steel-/200909794680

a laser thermometer measuring temp before and after is a simple way, along with an exhaust shop flow testing them. This really only shows a major blockage though. Not just power robbing partial blockages.