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The 4.8 is a good engine just as the 5.3 and 6.0 of that era, would be a reliable rig if maintenance has been done. Check warm oil pressure, common the pickup tube O-ring gets brittle and cracks resulting in lower oil pressures. Some of the earlier GMT800s have what they call piston slap on cold...

Our small diesel fleet at work is still running all compliant emissions equipment, with our oldest truck being a 2012 Silverado 2500HD Duramax with approximately 250K-miles. Others are newer 6.7L Powerstrokes. Just not worth the potential issues for a business in my eyes to remove them. If I had...

Spent some time last weekend with my annual Fluid Film undercoating. Yukon is coated and ready for its 6-month salt bath: I also spent some time checking spark plugs to see if a visual identified could be seen. Even my newer scanner doesn't have cylinder balance or misfire checks. I would...

With a solid week of constant rain or the threat of looming it decided to tackle the trans filter swap and flush. My initial plan was to just flush it since I had a shop do a filter back when I got it. But I just needed to look inside for piece of mind at just shy of 202K on the clock. Getting...

I agree, always gave me PMD heat soak fears, but to be honest I have only had a single GMT800 coil fail in my experience with them. One thing I didn't realize was there are 2 types of coils for these engines square and round. I guess that is where the difference in wire length comes from...

Very clean. I wrapped mine on the '94, unfortunately being my plow truck it vastly expedited the rot and I ended up replacing the downpipe barely 2 winters after.

Nice on the little Duramax. We have 2 of the 4-cyl turbomax half-ton trucks here at work. Both around 60-80K in miles and bought used at the same time. We did have a valvetrain failure in one this past summer, and a fuel pump failure in the other. Both were not cheap outcomes!

Nearing 202K-miles this past weekend. The idle seems to have a miss or shake to it every so often, but to be honest has been this way for a couple months now. Got a new issue arising from the Yukon that started about 3 days ago. During cruise and TCC locked, I can feel a "buck" that at first...

Finally bought the amazon element set, its been sitting in my mudroom for a few weeks now. Need to get some time over the next week or so to get it installed with the weather turning here!

I'll get a set off Amazon, worth the risk I guess!

Anyone have any experience with eBay or Amazon aftermarket replacement heated seat elements? How about the Seat Shop? My drivers seat in the 05 Yukon will trip out almost immediately. It has a dual button (back only, or back and butt). No matter the selection it trips off leading me to think the...

Had an issue with the Yukon yesterday. A bit late to a golf tournament, part way there the CEL began flashing. Could tell we had a miss and down on power. Ended up parking it and caught a ride with a friend. Codes retrieved were P0306, so cylinder 6 misfire. Today I went to Napa and got a coil...

The Yukon is still going strong minus one episode of getting warm while towing my camper on a near 90 degree day. Saw temps of 221 trans, 227 coolant. Really thinking about a larger trans cooler and some type of bypass from the radiator for the summer months. ITs really not a tow unit with 3.42...

As the title states, 1 winter with my new to me black 20's and the clear coat has peeled rapidly. Wondering what i can do to stop it. Obviously not looking to completely refinish the wheel, but open to other lower cost options. Thinking about peeling the delamination off and coating just that...

Another trip in the books. No real issues on this trip from the Yukon, this marks the 4th long distance trip with it since I bought it. We averaged 15.5 MPG over the duration which IMO is respectable for this at the speeds we drove and considering the weight we had inside. I did notice a few...

Ended up with another aftermarket PS pump. This one isn't a reman. It's MUCH quieter throughout all RPM range. I do still have hard steering issues, mostly at a stop while holding the brake. I really need to tear my old one apart and maybe modify/rebuild it.

Asked my buddy if he is willing to sell the PS pump on the crusty plow truck. No response yet, but he is on vacation. So I don't blame him. I stopped by his place and dropped off the cash for the diff, took a look at the PS pump and it's crusty as hell. Might be salvageable, but I am not sure...

Just to settle my OCD, we checked the rear out. No issues there. This fluid was changed about 3 to 4-years ago when I got it. The rear cover was leaking so I had a shop replace it.

I will have to look. The truck is severely rotted, was worried it's condition but agree with you. I need to go back and drop off cash for the diff anyway

I think i will be swapping a PS pump, for the 3rd damn time. It's getting noiser, and for a while now low on effort while idle. Fluid is at full and clean. The first pump was leaking badly, replaced with a Cardone reman, that reman was utter garbage and replaced with a Napa refurb, which i...