Search results

  1. dsteelejr

    Fuse block connectors

    I presume you’re asking about the accessory slots on the front of the fuse block and not the connectors that go on the back side for the fuses to plug into? You can use any garden variety male spade terminal to plug into it. If you are looking for the plastic connector piece that locks in place...
  2. dsteelejr

    88 350 tbi tear down. Heads and piston question

    There are folks on here that are a lot more savvy about engines than I, but you can always start by entering PNs into a part dealer’s website like Summit, Jegs, Napa, etc. A quick search on Summit didn’t find PN 02-233-04b, but 345NP came up with Sealed Power brand cast pistons. Cast pistons are...
  3. dsteelejr

    Wiring to battery or alternator?

    I also agree with battery. If you’re drawing enough current to need an 8 AWG wire it’s best to route it as short as possible. The longer the wire = more resistance.
  4. dsteelejr

    Fire out of top of carb

    Check your timing. Trying advancing it a little bit.
  5. dsteelejr

    Cool early Father's Day gift

    Yes. It only hits 44° when vacuum is extremely high, which is on deceleration. Once you give it throttle and the vacuum decreases the timing drops and returns to 36°. The red highlighted row near the bottom is idle vacuum. The very bottom row is higher vacuum than idle and you can see it only...
  6. dsteelejr

    Unable to find these relays

    What wires went to that connector?
  7. dsteelejr

    88 gmc v2500 tbi 350 engine identification.

    I have an ‘88 K5 with the factory 350 TBI engine (even the original build) with 274k miles. I know this because my uncle bought it brand new and was the only owner until selling it to me last year and I’ve been around it for 36 years now. The engine is black. I’m not an expert on exact years /...
  8. dsteelejr

    Cool early Father's Day gift

    I didn’t have to do much to get it going. Right off the bat it will generate a base timing table for you with a conservative advance, a ‘safe’ table. You can generate as many new tables as you want and for each one you’ll be able to input your own specs. See the attached pic. I played with the...
  9. dsteelejr

    Cool early Father's Day gift

    That’s awesome she did that for you! I use those in two of my squares and I love them. You won’t be disappointed.
  10. dsteelejr

    Unable to find these relays

    I echo what @Old Guy Bill said, get a wiring diagram. I have an ‘80 K25 and I’ve been through all the electrical and never saw anything like that on the driver side fender. If it was related to a no crank issue maybe the PO installed it to have remote start. My K25 was my grandpa’s truck and he...
  11. dsteelejr

    Beginner Alternator Question

    I came across some aftermarket alternators with left and right offsets that said they were a fit when I was looking to upgrade to one wire units. They were not GM, they were aftermarket brands, but still came up in my search results as a possible fit and I almost bought the wrong one. If it...
  12. dsteelejr

    Beginner Alternator Question

    I know you were replying to @75gmck25 and I don’t mean to step on his toes, but yes. 12si is 94ish amps. You’d know if it’s a 10si by the lower amp rating, usually 63 for a stock one. Also, when you shop alternators be sure to make sure the offset is correct. If you were replacing a stock...
  13. dsteelejr

    Beginner Alternator Question

    I like @75gmck25 idea of going with a 12SI. My ‘88 K5 uses one. Externally they are the same and use the same factory plug as your current alternator but with the higher amperage. No modifications needed. GM upgraded to these in the mid 80s with more and more electric components like power...
  14. dsteelejr

    Beginner Alternator Question

    If you’re not getting over 13V with the engine on then you’re not charging. Check the voltage from the alternator output wire. There’s also a two wire connector that plugs into the alternator. A larger gauge red wire that should be constant hot and smaller gauge brown or white wire (may have...
  15. dsteelejr

    Is there a good spot for keyed power under the hood?

    Since you’re going EFI you won’t need a choke. Is there a choke wire available? I don’t know anything about your set up, how stock or modified or hacked up it is by POs, but factory wiring had the choke powered with key on AND through the oil pressure switch so it only sent power to the choke...
  16. dsteelejr

    Is there a good spot for keyed power under the hood?

    A little more info would be helpful, like what type of device you need to power because the power demand is going to determine how you wire it up. Like @75gmck25 said, those circuits are not meant for high amperage, you may be better off using a relay. Regardless of how you do it, don’t take...
  17. dsteelejr

    Yet another Digital Problem

    I hit post before I was done writing. It may not have plugged in if a PO bypassed it by connecting the wires together. Do you remember actually unplugging it?
  18. dsteelejr

    Yet another Digital Problem

    Those are the starter signal wires. They send power to the starter solenoid telling the starter to crank the engine when the key is turned. Yellow is the neutral safety start switch. It runs from the ignition switch in the steering column to the neutral safety switch. The purple wire is the...
  19. dsteelejr

    Confusion on fuel and more.

    First, get yourself a wiring diagram. From the main page on this forum go to Reference Library, then wiring manuals. Are you running a single or dual tank system? You said the shop didn’t add the signal wire for your new tank. Is the new tank a replacement for the factory single tank or did...
  20. dsteelejr

    Intake Manifold 1976

    Is that a four bolt main or two bolt main?
  21. dsteelejr

    Verify defect fuel sending unit

    I replaced the sending unit in my ‘80 K25 last month. I removed the bed bolts and pulled the bed back and that was a PITA in itself. I had to use an induction gun to get the bolts red hot to loosen them up from the corrosion. Just a big pain and it didn’t completely uncover the sending unit...
  22. dsteelejr

    Oops. Probably shouldn't have done that.

    If I understand correctly, you have one fuel tank and a wiring that goes through a switch for dual tanks that no longer exist? I’m not sure what you meant by shut off your main as well. If you’re sticking to the single tank setup then you only need one wire from the fuel gauge to the sending...
  23. dsteelejr

    What years will Instrument clusters work for an 86 with auto trans and a/c?

    Curious how someone could determine it’s the wrong cluster when, I’m assuming, it wasn’t even taken out of the dash.
  24. dsteelejr

    What years will Instrument clusters work for an 86 with auto trans and a/c?

    If none of the gauges work first thing to check is if they have power. Pull the cluster out and on the plug there is a pink-black wire that feeds power to the gauges via the printed circuit. If you put a volt meter on that pink-black wire terminal on the plug it should have 12V with the key on...
  25. dsteelejr

    What years will Instrument clusters work for an 86 with auto trans and a/c?

    I would find out why none of the gauges are working before blindly throwing money at parts until it’s fixed. If you still want to know what years are interchangeable go look on LMC Truck’s website. Find the part you’re looking for and see what range of years it covers. Especially the printed...

Latest posts

Forum statistics

Threads
45,295
Posts
979,972
Members
38,305
Latest member
Spork
Top