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  1. TreeGeared

    Keep your OBS

    After researching/shopping for a replacement vehicle for the wife I concluded that if you look hard enough you can find something on any newer vehicle that has failed on someone and cost them big bucks. The information we have access to is both a blessing and a curse. True, older vehicles...
  2. TreeGeared

    1994 5.7 350 Twitchy RPMs when stopped

    IAC would be my first guess as well. You mentioned a new engine. 15000 miles would have been some time ago. I would check if you have any air leaks where the TB bolts to the manifold or anywhere else on the manifold for that matter. A small leak to the atmosphere would be enough to cause...
  3. TreeGeared

    Towing Long Distance

    All good points about taking your time and making sure your truck is up to date on maintenance. Which it sounds like you have done quite a bit of work to make it a reliable rig. Besides that when you load the trailer make sure you have a correct amount of weight on the tongue of the trailer...
  4. TreeGeared

    '88 TBI Suburban - Engine Overhaul - Help me plot this out

    To do a cam conversion you could do it with the engine still in the vehicle. Many of those early TBI engines had the provisions in the block for a roller cam. Mine did anyhow. If that is the case just get the parts from an L31. Otherwise you will need conversion lifters. You will need to...
  5. TreeGeared

    '88 TBI Suburban - Engine Overhaul - Help me plot this out

    Are you running the 383 with that cam with the stock tune? I am guessing not. If the OP was willing to buy the tools to burn chips and learn the tuning then I would say go for heads and cam.
  6. TreeGeared

    '88 TBI Suburban - Engine Overhaul - Help me plot this out

    I think this also depends on the amount of time that you want to put into it. The TBI system does not respond well to significant engine mods such as a cam change. If you are willing to take the time to learn to tune then that opens up more options. A new EFI system could net more power...
  7. TreeGeared

    AC Rebuild Input please-condenser yes or no

    AC is on my list as well. I would replace everything considering the age and chancing having to do it a second time.
  8. TreeGeared

    2000 2500 CCSB Questions

    Just as another data point my 95 8 lug came with 3.73s. I actually ran across an 88 with 3.42s but it had the SM465 trans with a very low first gear. I agree that the majority of these came with 4.10 gears. CCSB are getting hard to find in decent condition. Check ball joints and tie...
  9. TreeGeared

    1995 GMC 1500 Turn signals

    You have it backwards. Power flows from the power distribution center to the multifunction switch to the lights. My guess is if you keep blowing a flasher you have a short in the multifunction switch or elsewhere in the system. I attached a wiring diagram. I suggest unplugging components...
  10. TreeGeared

    Well this sucks TBI down

    Tough break. The only condolence I can offer you is that you are a little wiser now than you were before. And next time you talk to someone building an engine you will have a story to tell and a lesson to convey.
  11. TreeGeared

    Front end rebuild question/suggestions

    I had similar experiences with aftermarket rebuilt steering boxes. They all had noticeable play. Even tried adjusting the bearing pre load. I finally ended up with a new not rebuilt unit that has been good. Make sure you don't have a problem with the pitman arm instead of the gearbox...
  12. TreeGeared

    88 s10 2.5 rwd trans swap

    Yes the iron duke and the 60 degree 6 family use the same bell housing pattern. May want to do a little research on the 700r4 applications. I think the v6 vs I4 have different valve body calibrations. Shame you are not closer. I have a 700r4 from a v6 left over from my MG project that I...
  13. TreeGeared

    Vortec 2200 swap?

    I learn something new every day. Thanks for the info on the Latin American models.
  14. TreeGeared

    Vortec 2200 swap?

    What I have wondered is if the 4200 vortec from a trailblazer would be a mileage friendly option. Very torquey which would be good for a truck. Not sure I have ever seen an inline 6 stuffed in a 400's engine bay. Like others, I have an old Honda accord that I use for basic a-b...
  15. TreeGeared

    Does 2500 Suburban Feel Heavy

    Not sure what you mean by feeling heavy. Maybe steering feedback or braking? I don't have burbs but between my LD c2500 and the HD K2500s there is not a huge difference in driving. Others have commented on the 1/2 tons needing brake upgrades. For what you are describing a 1500 or 2500...
  16. TreeGeared

    ‘95 5.7 runs poorly when warm. I’m reducing myself to being a parts-changer.

    I know you said you replaced the fuel pump but your symptoms really sound like a fuel issue. Maybe get a fuel pressure gage and check running pressure after first starting and then after it has run for awhile. Perhaps a bad fuel pressure regulator
  17. TreeGeared

    New crate motor?

    The connector on the underside is in the back of the power steering pump correct? Looks like a pressure sensor. The one on the side of the engine block is a knock sensor.
  18. TreeGeared

    Help Needed - Running Hot After Heads Replaced

    Bleeding air out of cooling systems can be harder than most people think. Here are a couple of tricks. -Buy/rent a coolant system pressure checker. It is just a small pump that attaches to the radiator and pressurizes the system. If you have a leak air could be entering the system hindering...
  19. TreeGeared

    My first Chevy - 2000 K2500 RCLB

    Nice truck. Most RCLB trucks in the K2500 or K3500 got worked pretty hard or in my area ended life as a plow truck. Nice to see that some are taking the time and effort to keep these on the road or repair them. Marker lights can be added, they were a factory option. Beside my trucks I...
  20. TreeGeared

    New crate motor?

    Doing a compression and a leakdown test if you can rent the equipement from a parts store would be helpful. It will tell you if all your cylinders are in bad shape or just a couple. It may help you decide if you want to take the long block and have it machined and rebuilt or if you just...
  21. TreeGeared

    97 k1500 manual transmission options

    Having a similar truck to reference certainly helps. To determine the style of bell housing an internal slave will just have an openning for the hydraulic lines to pass through. External will have a extra bulge on the lower right side of the bell to mount the slave. As for clutch I actually...
  22. TreeGeared

    Seeking swap/rebuild wisdom

    Sounds like you are in a similar place as I was a few years back when I discovered low compression on the #2 cylinder of my 95 TBI. I went round and round and had parts lists and cost for several different options. I am going to share some of that logic and maybe it will help you. Stock long...
  23. TreeGeared

    New crate motor?

    I would shop around a little. 2900 may be a little high. With 250k miles also consider what else you may want to replace. Spider injector, any questionable sensors come to mind. Fuel pump and lines would be a good step as well if you have it all apart. Don't think that if you just replace...
  24. TreeGeared

    TPS issues

    Get a multimeter and check continuity between the ECU and the TPS sensor. Sounds like there may be short in the 5V supply between those two points.
  25. TreeGeared

    97 k1500 manual transmission options

    Did a auto to NV3500 manual swap on my 88. My LQ4 has an NV4500 behind it. Get a flywheel from a 4.8 manual engine. Depending on what you are doing with the truck do not discount an NV3500. Not as good for towing as a NV4500 but they shift smooth and are probably going to be easier to find...

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