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  1. Tom P

    1996-2000 7.4L Vortec Parts

    I have a new melling timing set, Fel Pro Timing Cover Gasket set, One Piece oil pan gasket, valve cover gaskets, and an EGR gasket. We discovered that merely replacing the factory timing set will advance the stock cam and should easily net some low end power. A slightly used GM fuel pressure...
  2. Tom P

    Replaced Fuel Sender, Gauge off by 10 gallons now.

    So I recently replaced the fuel pump/sending unit in my K3500. I went with a Denso unit because I like their stuff and Its probably made better than the Delco one anyway. Unfortunately I think I may have made a mistake in doing so. Its not a dire issue by any means but it took my fuel gauge...
  3. Tom P

    7.4L Vortec Fuel Pressure Regulator

    So I replaced the FPR in my truck a few months ago. It solved a lot of issues I had with the truck when I bought it. Since then, the recently replaced fuel pump died as well. I never had good fuel pressure with the pump that was installed in the truck before I got it. Once I was finally able...
  4. Tom P

    Aftermarket Engine Parts... Are they worth it? Not in my opinion.

    I've had my truck for just under a year now and so far, I've had to put a lot of money and work into it to keep it running. I'll be the first to admit that I probably looked at the truck with rose colored glasses when I bought it and I'm taking responsibility for what I bought. But if you are...
  5. Tom P

    Oil dripping off of the starter.

    So I know my engine leaks oil like a siv (2000 K3500 7.4L), but the one thing that's got me puzzled is how there is engine oil dripping off of the starter. RH side of the engine above where a rear main would drip, and I've replaced the valve cover gaskets. I know its leaking in the front and...
  6. Tom P

    Plasti-Dip or Bedliner for the lower body panels?

    My truck has been around the block a few times and the lower rocker panels are starting to show some wear and tear. My truck is a dually and the fiberglass fenders are spider cracked something fierce. I want to do some type of coating on the bottom quarter of the truck. There's a little bit...
  7. Tom P

    ABS kicks in at low speeds...Driving me insane.

    2000 K3500 and at low speeds, 10mph or less, when applying the brakes (i.e. coming to a stop, rolling through a parking lot, or getting in or out of parking spaces) the ABS kicks in and I have to push the pedal harder to get the truck to stop. No CEL or codes, no Brake or ABS lights on the...
  8. Tom P

    Whats Your Favorite Towing Add-On

    I'm always looking things to make life easier while towing, especially over long distances. My first and most important upgrade to a truck that doesn't have them is good extendable towing mirrors. My most recent and favorite new upgrade is a backup camera. I usually have hitch up to trailers...
  9. Tom P

    2000 K3500 Crew Cab Rear Door Speakers?

    Been looking for info on the rear door speakers. There doesn't appear to be sound coming from the rear doors but it looks as though there are spots for speakers there? Anyone know about this?
  10. Tom P

    My L29 Laundry List

    So I've been working on my K3500 for about 9 months now and its been a problem child since day one. I've worked through a myriad of troubles thanks those of you who are familiar with this engine but like the the little dutch boy, every time I stick my finger in the dam, another hole opens up...
  11. Tom P

    Looking for a cheap Auxiliary Fuel Tank solution

    I have a 2000 K3500 CCSB Dually and 7.4L engine. Since its the standard bed, I have a 25 Gallon fuel tank. So far this is the biggest gripe about my truck (along with the 6.5ft bed). I thought about an in bed tank but we would lose quite a bit of storage, and most of them are rather...
  12. Tom P

    2000 K3500 4L80E... Tow/Haul Mode???

    On the 2001 and newer HD trucks and most of the half tons from '99 and on they gave you a tow/haul mode for the transmission which would increase shift firmness and hold you in a gear longer. This is basically the same tranny that was used in those trucks and should have the capability. Do you...
  13. Tom P

    2000 K3500 hydroboost brake issue

    So I've had my truck for a while now, not quite a year. Had a shop do an alignment, rotor turn and brake fluid flush back before summer. Everything was inspected and they even turned down the chance to replace calipers and pads too. Claiming it wasn't necessary. Have had no issues with them...
  14. Tom P

    Pulling Stock Manifolds on a 2000 L29 454

    This is my plan anway. About 99% sure I have a leak after 175K miles. Going to do a top and front end tear down and I'd really like to put some fresh exhaust manifold and possibly collector gaskets. Obviously soaking in penetrating oil is key here, but these studs and nuts are hammered. Has...
  15. Tom P

    Dome Light issue...Always On

    2000 K3500 CCSB and when I bought the truck the dome light did not work. No biggie, replace the light bulb. Turns out the fuse was pulled. I put the fuse back in the dome light circuit and the light comes on 100% of the time. I don't believe its the door switch because the most annoying...
  16. Tom P

    Muffler of Choice?

    Looking for a better-than-stock flowing muffler that doesn't get too loud or has too much drone at highway speeds. I have a 2000 K3500 with 7.4L and do a bunch of towing with the family so I dont want to drown anything out. Would prefer a straight through design like a magna flow but I know...
  17. Tom P

    6 Hole Multec Injectors? 7.4L Vortec

    Was always under the assumption that the OEM Multec injectors on the 7.4L L29 engine were single hole? The ones I just pulled to replace with the "bosch replacements" are 6 hole? Wondering if I should even be replacing them?
  18. Tom P

    Has anyone modified the electric AC condenser fan system?

    Just got the ac system in my truck up and running before my long camping trip over a couple mountain passes next weekend. While I had everything apart, I wanted to make sure the electric cooling fan was good to go. I assumed it would kick on with the ac however that wasn't the case. After some...
  19. Tom P

    K3500 AC Orifice Tube Location?

    Tried asking the Almighty Google and all I got was information on suburbans and 1500's. The line they show its located in is just a standard high pressure line with no housing for the tube on my truck. It appears to run between the condenser and evaporator. Anyone dealt with this before?
  20. Tom P

    To Hypertech or not to Hypertech

    So I've had this hypertech tuner for a couple years. Came with a truck I bought and un flashed it before I traded said truck in. Put the tuner to my wife's Denali and left it tuned for a few years. Decided I was going to try the tuner for my K3500 and went to un flash the wife's car. Needless to...
  21. Tom P

    K3500 Battery Cable Mess... Need to see OEM Setup please!

    So I will try to get a picture or two put up here as soon as I can, but for now I'll describe whats going on. My 2000 K3500 I'm finding is kind of a cobbled up nightmare. The P/O's had done some messed up crap with the battery cables. They took a regular group 78 side post battery and then...
  22. Tom P

    Favorite OBD2 Scan Tool? Recommendations?

    I know there are a million of them out there, whether you're looking at a bluetooth unit to pair to an app on your smartphone or tablet, or a stand alone, but what are some that people have that they like and would recommend. I'm in the market to purchase one. Don't need a million features...
  23. Tom P

    7.4L MAF Issue?

    So I've got a 2000 K3500. Had the hot start issue and slobbery injectors. Fixed all that and threw in a new thermostat. Its been running great on short distances and has plenty of power. After doing some towing and getting the truck properly warmed up, I start to have some issues with...
  24. Tom P

    2000 K3500 7.4L Leaking Rear Main

    Recently purchased the truck knowing there was work to be done. Starts and runs every time but its got a few of those common issues. One of which is a leaking rear main. Curious as to who has done what and how it worked out. A guy at the local lube shop pointed out some snake oil to me...
  25. Tom P

    Rough running 2000 7.4 Vortec

    Hey guys I'm new to the forum. Just bought my truck yesterday knowing it had a rough idle. I've read that injectors on these engines usually don't last more than 150k and this truck just turned 170k. Truck starts and drives reasonably well. It was about 40 miles from my house and did 60-70 mph...

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