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  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...
  16. J

    1987 V10 with 1974 engine- need TBI Help

    OK thanks- installation planned for Monday 4/19. I'll respond with how I make out and will check for any codes from the ECM. The TBI was from a company called Autoline products. I bought from Autozone but Rock had the same exact unit for $100 cheaper but lead time was 1.5 weeks. Autozone...
  17. J

    1987 V10 with 1974 engine- need TBI Help

    I got the new TBI and my new fuel injectors. Is there anything I need to do after I install it? Just install and start it? Then let it warm up and reset base idle?
  18. J

    1987 V10 with 1974 engine- need TBI Help

    OK Todays update. Got all the dash lights working Yay!! Even the emergency brake light works. The SES works too and it does not stay on after it is running. I have not checked for codes yet. I changed the thermostat to 195 degrees. Same high and low idle issue. Will there be codes if the...
  19. J

    1987 V10 with 1974 engine- need TBI Help

    Ok- update. Everyone has been so helpful. And I was able to look up other threads on taking the gage cluster out to access the instrumentation and SES bulb. The good news is that everything behind the dash is in excellent shape for a 40 plus year old truck. The great news is that the SES...
  20. J

    1987 V10 with 1974 engine- need TBI Help

    Only 1 O2 sensor on the left side manifold, my bad. The ODB1 port is working, I will check for burned bulbs next. I did order a INNOVA 3123 code reader from Amazon. And I ordered the fuel injector connectors from Rock Auto. I tired to order a whole TBI and despite stating "in stock" no one...
  21. J

    1987 V10 with 1974 engine- need TBI Help

    Well I checked the OBD1 port and the wires are all there. It also appears to be working as when I jump the A and B ports I can hear the IAC stepper motor when I turn the key on. There are no lights though. Maybe bulbs burned out? I don't have a Droid phone or tuner. What would I need to buy...
  22. J

    1987 V10 with 1974 engine- need TBI Help

    Also I think the throttle body may be bad...........the connectors to the fuel injectors are all deformed and like melted like there was a fire in the TBI from the previous owner- probably sprayed something flammable in the TBI and probably permanently damaged it. Probably worth getting a new TBI.
  23. J

    1987 V10 with 1974 engine- need TBI Help

    Thanks for the replies. I am not sure if the scanner port works. I have an ODB2 scanner and it does not fit the port. It may be an ODB1 port or what is it? There are no lights on the dash other than the bulb when I turn on the headlights, so check engine light is inoperable. I tried jumping...
  24. J

    1987 V10 with 1974 engine- need TBI Help

    I did not want to post another TBI thread but I need help. I have read just about every TBI post on line. I have a beautiful 1987 V10 short bed stock, 350 engine, SM 465 manual. (Engine is a 1974 transplant) with original 1987 electronics. It runs great, powerful and steady at all RPM except...
  25. J

    Worthwhile to convert from TBI to Quadrajet?

    I have TBI on my 87 with 5.7. It is running on a 74 block. It was not running good when I got it and it is now much improved. I had a bad kink in the main fuel line, right next to the TBI inlet. It also needed new spark plug wires and I just replaced the plugs. I have to say the TBI for...

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