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  1. My78truck

    Occasionally wiper start.

    A little spring fell out of my wiper switch and I cannot figure out how to get the knob off the switch to see if I can reseat it as I think I know where it goes. I still have my push for washer fluid so not sure the need for this little spring. Any help is appreciated. I ordered a new wiper...
  2. My78truck

    Security Systems

    Okay, I do fear mine getting stolen. I have had WAY too many people over the years asking me if I would consider selling it, not including the notes I find on my windshield. Hell, there have been riding lawn mowers stolen right off the lot in a small community across the mountain from me...
  3. My78truck

    Under dash light

    :cheers:
  4. My78truck

    Under dash light

    Dave, I had my cluster completely out, gauges removed and cleaned up the inside of the case and painted it bright white. I have seen YouTube videos that the inside was sprayed silver for more reflection of light. I believe it was 8 or 9 for cluster, 1 for washer switch, 1 for temp control...
  5. My78truck

    Correct Fuse for Blower motor

    In my handy-dandy 1978 Chevrolet Light Duty Truck Service Manual, it states in Section 1A "Heater", "Blower and Air Inlet Assembly" that"Located in the fuse block, in series between the blower motor and the battery, is a 25 am. fuse C-k models..." When I look at the fuse block, and a schematic...
  6. My78truck

    Under dash light

    Okay, I figured this out. I pulled the fuse, re-seated the fuse, nothing - it is an SFE 20amp. I happened to have an AGC 20amp so thought, what the heck - not sure what the difference between SFE and AGC are. 1978 Owners manual says "20 amp" fuse -does not designate AGC or SFE. So, I...
  7. My78truck

    Under dash light

    Have a multi meter, which I am sure registers volts
  8. My78truck

    Best vendor? aftermarket? OEM?

    The thing I like about LMC, is they give you a year to send things back for a refund, no questions ask. Trust me, I have tested this. I purchased something and then had to fix something else before getting back to being able to install what I originally purchased and then didn't need. With...
  9. My78truck

    Blower works on high only

    Okay, a little late getting in on this discussion. My selector assembly blower switch was working. Then it wasn't. I unhooked negative on battery and pulled the power connecter on assembly and went and had some coffee. Came back and hooked the power connection back up (after cleaning...
  10. My78truck

    Under dash light

    OBD, hmmmmmm, did I learn anything.......part yes, part no. It is like chasing a rabbit. You are not going to catch it and you know it is going to run down a hole, yet you chase it anyway. :rotflmao: I would like to think all this maybe it helped someone else. Now I need to figure out why...
  11. My78truck

    Choke light on automatic transmission?

    This truck has a 100 mph speedometer. The oil pressure gauge was switched but registers oil pressure. This IS a 1978 built in the early part of 1978. This truck is part SAE and part metric, it has some things that go back to 77 and some that go into 79. So, it may, or may not, have an...
  12. My78truck

    Choke light on automatic transmission?

    I Have a 1978, 350, V8, automatic TH400 transmission in my truck. When putting my cluster back together, next to the 4-wheel lock light space (which I do not have) is a "choke" idiot light. I replaced the PCB and used the old one to place the clips/light bulbs where they need to be. My old...
  13. My78truck

    Under dash light

    BTW, I HIGHLY suggest changing out cluster, dome, cargo and (eventually) courtesy lights to LED!! Man, what a difference and I actually think my regular ol' head and tail lights burn brighter with less amps being drawn to those lights. Plus is you basically do not have to worry about changing...
  14. My78truck

    Under dash light

    Thanks to all of you for your help, and your empathy. This is truly a live and learn. :happy160:
  15. My78truck

    Under dash light

    Thanks for trying Dave. My dad was a mechanic by trade for many years and is now retired. He gave me his 2 tall-stacked tools boxes FULL of Mac Tools. Tools have always been my play toys. So, being a mechanic he keep EVERYTHING, old, new, blown, pieces, bits, gaskets, this, that and...
  16. My78truck

    Under dash light

    OBD, yes I remember it working at one point in this truck's 40+ year life. Why I haven't before now, I looked in my original owners manual and it states that "courtesy" bulb is a 1003, NOT a 1004. The 1003 bulb has a single contact. So, I am going to go get a 1003 bulb tomorrow and see if...
  17. My78truck

    Under dash light

    Thanks to both of you. The bulb that came out was a GE 1004 and has 2 contacts, new LED also has 2 contacts and is the correct replacement as suggested by SBL. Socket looks good, I used some sand paper to clean up contact points. Unfortunately it is a plastic socket (unlike dome and cargo)...
  18. My78truck

    Under dash light

    Okay, all you electrical wire geeks, I need some additional brain power. I have an under dash light that is not working. I am switching to LED, not that that should make a difference. Under dash light does not come on either with door open or with door closed, ignition off or ignition on and...
  19. My78truck

    Removing old trailer brake control

    I used to have a horse trailer and had this braking system put in. I no longer have horses, or a trailer, where I need brakes, and want to remove this from under the dash. I do not just go around cutting wires so wondering if someone can tell me what I need to do to remove without affecting...
  20. My78truck

    Gauges not working

    Okay, thank you for all your help. I popped the 4 amp fuse, sprayed with electrical contact cleaner, used a folded piece of sand paper, sprayed again with contact cleaner, put dielectric grease on cleaned contacts, inserted fuse and VOILA' I have gauges again. Thank you so much for walking me...
  21. My78truck

    Gauges not working

    Okay, new at this and learning from you experts. Where is the ground?
  22. My78truck

    Gauges not working

    Okay, everything is solidly in place, the circuit panel does not have any lifts or tears or burn spots, all the clips were cleaned with electronic cleaner and a wire brush. So what "connections" are you talking about? I plan on replacing the cluster fuse tomorrow. This is a picture of the...
  23. My78truck

    Gauges not working

    Hello - Refurbing interior and dash of my 1978 Chevy C10. My original gauges were not very pretty anymore. Saw that I could get overlays, but concerned about them peeling away with time and heat/cold. Was at my now favorite bone yard and came across a pristine set of gauges. I know you are...
  24. My78truck

    Air vent valve replacement

    Ok, thanks for pics but the plate where the actuaror and spring connects are not the same on this new one I have. The connection points are not offset. So I guess I cannot use it and will just rebuild the old one with new sealing foam.
  25. My78truck

    Air vent valve replacement

    Okay, thanks

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