Recent content by JT58

  1. J

    Oil Pressure Sending Unit Missing- Empty Threaded Hole

    OK yes it's the hole above this one that I was referring to. And it is the clutch linkage hole and not used. The one you circled can I remove the plug and install the oil pressure sender switch there? Is it 1/8 or 1/4 NPT?
  2. J

    Oil Pressure Sending Unit Missing- Empty Threaded Hole

    OK I am on to the next fix on my 87 V10- fixing the Gages. The Oil Pressure Gage does not work. Thought I would replace the sending unit for starters. It's not there. Threaded hole is there above the oil filter- looks like 1/4 NPT. There does not appear to be a plug yet I have been driving...
  3. J

    E85 conversions considering gas prices

    My wife runs E85 only in her 2013 Silverado with 4.8 V8 flex fuel engine. She has had the truck since 2014 and it has about 83K on it now. The truck is mint and I installed a SST MBRB CAT back dual exhaust on it a few years ago. The truck runs excellent, sounds so good and definitely makes...
  4. J

    Failed smog on 1988 with 350 TBI

    No emissions testing here in FL. My 87 has emissions and catalytic removed. The exhaust smells really bad though I almost want to put the emissions back on- smog tees, air pump ad have to get a catalytic converter.
  5. J

    1987 V10 with 1974 engine- need TBI Help

    Update on this thread and my final report. The shop found an issue with the new TBI- said it was an incorrect TBI for the truck. It looked exactly the same to me. So he took the original TBI and rebuilt it using the components from the new TBI. It runs pretty good now, idle is not perfect...
  6. J

    1987 V10 with 1974 engine- need TBI Help

    Well it's a HUGE list- I have a book of the work and receipts. And some of it my work, some a shop and their labor. For starters- dual fuel tanks not working- needed all new wiring and new wiring harness under the truck, fuel pumps, all new wiring under the truck to get the turn signals and...
  7. J

    1987 V10 with 1974 engine- need TBI Help

    Hmm I had not through of an LS swap. Do you mean the 4.8 or 5.3 engine? My wife has a 2013 Silverado 2WD short box in superb condition. With the 4.8 it moves and sounds real good with MBRB CAT back duals. Are adapters made to mate up with the manual tranny to do this kind of swap? I'd...
  8. J

    1987 V10 with 1974 engine- need TBI Help

    The shop is as I suspected extremely busy and won't get to it for a week or two. I had to buy a truck cover for it to protect the paint in the super hot FL sun while it waits its turn. (So difficult to get vehicle work done around this area, that's one of the reasons I try and do all of my own...
  9. J

    1987 V10 with 1974 engine- need TBI Help

    Yes I gave the shop both TBI's and told them the story. Not to brag but I am usually pretty good at figuring out things even when shops can't. Has happened to me a few times where I had to fix a shop mistake. This one has me really stumped and has me wondering if the shop can even figure it...
  10. J

    1987 V10 with 1974 engine- need TBI Help

    HMM I didn't know that was even an option and if it would even run right.
  11. J

    1987 V10 with 1974 engine- need TBI Help

    I researched the IAC reset procedure and tried it multiple times as described above. It seems to idle fine and I can adjust it with the IAC disconnected (with the new TBI). When the IAC is connected back up is when the idle goes crazy. It starts out idling really low almost stalling, then...
  12. J

    1987 V10 with 1974 engine- need TBI Help

    I am out of ideas. I don't have a scan tool. I tried re-setting the IAC and idle and it was too low and stalling. I can get it to idle nicely with the IAC un plugged. When I plug it back in it's lower- too low, stalling. I repeat the process and raise the idle, it seems fine, then shut it...
  13. J

    1987 V10 with 1974 engine- need TBI Help

    The old TBI hunted in closed loop- but still idled, and it idled fine on fast idle. The new one it starts with very low idle now, have to give it gas to keep it running. Then when it warms up the idle is high and will not go down in closed loop. Around 1400 RPM. No vacuum leaks, new plug...
  14. J

    1987 V10 with 1974 engine- need TBI Help

    So I reinstalled the original one with the proper gaskets and O Rings and there was no improvement- disappointing. I then installed the new one and at start up it was very smooth, good and steady fast idle. The truck also ran really good with better throttle response than it ever had before...
  15. J

    1987 V10 with 1974 engine- need TBI Help

    Today's update- I replaced the fuel injection connectors. They were so brittle and burned they practically disintegrated. Took the TBI off. A couple of observations......the top portion of the TBI where the fuel injectors are was extremely loose. Gasket appears to be good, it's like it was...
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