grey2112

Apologies if this is not allowed, but I am new here and am trying to an answer from the experts here. So, realistically given miles, conditions, features (the 8.1L engine with Whipple Supercharger) what could I expect to get for this if I sold it? Off the bat - has an 8.1L 496cc with an added Whipple Supercharger - 600+ HP and 647 ft-pounds of torque. It is a towing beast. You do have to use 91 octane fuel. 4x4 LT trim, I think No crash history. I bought it from the original owner - he put 209,000 mostly highway miles on it towing a big Toy Hauler all over the country and Canada. I have put 2000 miles on it just towing the boat to and from ramps and occasionally to work - so 211,000 on it Never smoked in. Condition outside is OK - could use a paint job to pretty her up as it is peeling in a few places. Inside condition is sort of OK - a few small tears and rub spots on the leather seats, and the top of the dash is sun-cracked so I have one of those carpet covers on top of it. CD player doesn't work but the stereo itself is awesome and I use a Bluetooth MP3 device to stream my music from my phone. There are a few "empty holes" in the center of the dash where a CB radio and some other piece of electronic add-on was - I think a DVD player. I'm sure it could be covered or something else installed there. Driver's control panel (where all the buttons for locks, windows, etc.) is loose (broken clip) so I have some duct tape there holding it on - again, something a new piece with usable retention clips could fix. Headliner in only one place sags a little but nothing serious - it is the moon roof. The rear view mirror suddenly let loose of the glass a month ago - weird. I tried gluing it back in but no luck. So I replaced it with a suction cup one. I also have a rear camera/front dash cam installed - it is awesome for backing up, hitching up, etc. and runs all the time, so I have been using it as my primary rearview mirror when driving - I like it as I can see a lot more on the sides - I hardly ever look in my side mirrors when changing lanes because of it. The side mirrors are different - one is factory with power and the turn signal, but the driver's is manual. Class IV trailer hitch with ball included. No third row seating so there is a VERY large cargo area back there with a plastic heavy duty cover down. Runs great - ice cold AC. The only niggling little issue is a very slow oil leak somewhere - if I were to guess it may either by the pan gasket or master cylinder gasket. I put some "stop leak" in it and it helped, but it is so slow that simply checking the oil level every month or two and adding a little oil (like maybe a half quart) seems to be working just fine. These engines are known to slowly lose oil (burn or tiny leaks) especially after 200,000 miles of use. I use 25w40 and it helps keep that to a minimum. All the things I have done to it: Alternator - Sep 2020 (lifetime warranty) Battery - Sep 2020 (3 year warranty) 4x4 actuator motor replacement - October 2020 New serpentine belt - Aug 2020 New E rated tires - May 2020 Cooling system flush, new thermostat, idler pulley, water pump, belt tensioners, spark plugs - August 2019 (when I first got it - had a mechanic really do a huge inspection and replace everything he thought it needed to be safe) Starter, power steering pump, HP lines - December 2019 Special "racing" spark plug wires - $275 alone for these - done to keep the heavy duty cast-iron engine block from melting normal spark plug wires. April 2020 Ball joints, pittman arm, idler arm and bracket, brakes, CV axle, control arm - basically an entire new front end - and a front end alignment - Aug 2019 New catalytic converter, exhaust manifold gasket - Sep 2019 In July of 2017 (original owner) the transmission was replaced - truck had 192,129 miles on it - so the transmission is 4 years old and has less than 20,000 miles on it. April 2019 - Instrument cluster replaced I have ALL of the receipts from both the previous owner and myself, including the original bill of sale listing all options. I am hoping the incredible towing capacity (12,000 pounds) and all the new parts and work done to it will be a good match for someone that can't afford or doesn't want a diesel. Not in a rush to sell it so I can afford to wait for the right buyer to come along. Thank you.

Thank you - got one on order and hopefully that is all that it is the problem.

My vehicle: 2004 Suburban 2500 LT, 4x4, 8.1L engine, Whipple supercharger. Bought from original owner with 208,000 miles. Have had some Check Engine light codes thrown at me since buying it - have replaced both O2 sensors on the drivers side, gotten new catalytic converters, exhaust manifold, tuneup. Drove for a week with no Check Engine light showing - yay! But the other day, I hooked up my boat trailer and plugged in the 7 pin. Started up the vehicle and the CEL is back. Towed just fine, no issues. Took it to get the code pulled: P0446 Code (Evaporative Emission System Vent Control Circuit) Person at the auto place said it could just be a wiring issue throwing a random code. Tried clearing it (they told me to disconnect the neg terminal from the battery and wait 15 minutes) but the CEL is still on after I did that. Thoughts?

I am getting that too. I think the squealing might be the supercharger.

So, my 2004 Suburban I just bought (8.1L engine, supercharger, 208k miles) has an exhaust leak, according to my mechanic. Causes a bit of a squealing noise when accelerating. Can't smell any exhaust in the SUV. Due to the location and the supercharger, will cost around $500 to take everything apart and see if it is just a gasket that needs replacing or if we'll have to replace the manifold. Question - given my use (under 2000 miles a year, mostly 5-10 mile tows to the ramp and back) am I hurting the truck by NOT getting this fixed? Just don't know if I should spend $500-$1000 fixing a non-problem for my usage.

Not too concerned with this due to not needing the max towing power. Plus, the 81.L engine with supercharger gives me a LOT of torque.

So my "new" 2004 Suburban 2500 4x4 has LT 245/75 R16 tires When it comes time to replace them, do I swap like-for-like in size, or would it behoove me to change the size? This is mostly (95% of the time) being used for towing short distances (boat to a ramp). Rarely any highway, probably never offroad, etc. Any recommendations for brand/style, etc?

So after doing a lot of research I'm thinking of starting off with Mobil Delvac 15W-40 Heavy Duty Diesel Oil, Super 1300 Given that I do no cold weather driving, and this oil apparently doesn't burn up like the others, I'm hoping that with my light usage and towing it will help. Planning on replacing all fluids, spark plugs, spark plug wires, oxygen sensors, etc. I got a great deal on the SUV and have an extra $1500 from the sale of my car that I'm allocating to new parts, fluids, etc.

2004 Suburban 2500, 4x4, 8.1L engine with Whipple Supercharger. 208,000 miles I live in Florida and will be doing mostly towing (short distances of 5-10 miles). No hills, no cold weather driving. Interested in your thoughts on a proper oil (weight/viscosity, brand, etc.) for these conditions. I've got a suspicion there's a little leaking going on and will check into that (gaskets, oil pain, etc. - we'll see). 10w30??? Synth or synth blend?

Well I bought it. Picking up on Saturday. He used it 90% of the time for towing a 35 foot toy hauler all over the country. Receipts for everything, looks like money was no object when it came to running it. He's 78 now and no longer has the toy hauler and lives in a small condo community in Ft. Lauderdale. Ran great. Wondering, though, if I can simply uninstall the supercharger (Whipple, installed in 2004) so I don't have to keep using Premium. I assume a new belt (since it would no longer be running the pulley of the supercharger) and a re-program of the ECM? Is there a market for used Whipple superchargers?

Anything to consider buying this vehicle? 208k miles, new transmission under warranty, original owner, no accidents. Has 3.73 axle but I doubt I'll ever tow over 9500 pounds.

So, came across another one. This one is a 2004 Chevrolet Silverado 2500 HD Crew Cab - has 89,000 miles on it. Has the 6.0 engine. The description: Good truck needs a knock sensor and power steering pump it starts up run and drives cold ac 4wheel drive.( gas) Also comes with extra set on 35 rims and tires Asking $5000 So, what would my towing capacity be with this? Obviously not as good as the 8.1L engine. Maybe 10,000 pounds?

Central Florida

I've heard that a solution is using heavier weight oil, or just realizing you'll have to add oil occasionally. This truck will be used for 2000-3000 miles a year, 95% of the time towing short distances.

So, I've been looking to get a 2500 series truck for towing (up to 9500 pounds) - boat/trailer and a travel trailer. I've owned a 2008 F250 in the past, as well as a Suburban 2500. I found a 2001 2500HD, 4x4, looks like a long bed, with 8.1L engine and Allison tranny. 186k miles. Owner says only thing it needs is a blower motor for the AC. Assuming clear title and not too rough, is $4000 a good price, and is there anything I should really pay attention to, inspect, etc. and be aware of for future issues?