Search results

  1. chengny

    Turn signal and brake problem

    My blinkers work for both sides but once I hit the brake the turn signal shuts off then comes back on when I release the brake. 1. When you say the T/S shuts off; do you mean the lamp stops flashing and remains constantly lit, or that it goes completely out (dark)? 2. Was the directional...
  2. chengny

    Choke works,oil pressure gauge works ,choke light always on

    A: I wouldn't get too stressed about it. I would be far more inclined to believe that what the gauge indicates is your actual oil pressure. B: Yes, a faulty oil pressure switch will cause the CHOKE warning light on the dash to illuminate. Also, remember to keep in mind that the power supplied...
  3. chengny

    signal light problems

    Craig, If I am reading this right: Both signals and front markers flash at the same time. When he says "both", I think he's referring to both the LH and RH sides (blinkers & markers combined). IOW, if the directionals are activated - in either direction - and the HL's/PL's are off, from the...
  4. chengny

    signal light problems

    New or existing problem? Any repairs/modifications immediately prior to start of issue? Be sure all 4 bulbs are the correct ones (1157 park/turn & 168 marker) - and their sockets are clean. Inspect wiring to park/turn signals (BRN - park) & (LT BLU/DK BLU - L&R directionals), look for any...
  5. chengny

    85 C10 Vacuum Hose Diagram/Pics

    In stock at Classic Parts - $4.49 https://www.classicparts.com/1971-87-Diverter-Valve-Link-Connector-W-A_C/productinfo/68-248/
  6. chengny

    Frame question

    Looks like the bottom flanges are still correctly spaced, while the top flanges are splayed outward. That indicates that the webs are twisted. To straighten the webs, you'll need to heat them up (a lot - till the steel is cherry red) and then apply a torsional force to the upper surface of the...
  7. chengny

    85 C10 Vacuum Hose Diagram/Pics

    Having said all that - sorry - check the diverter valve link. Access is easy, just remove the dash vent riser from the main body of the plenum (two little bolts and one screw): The connecting link will be visible. It is a white piece of plastic and gets brittle over time: This part is...
  8. chengny

    85 C10 Vacuum Hose Diagram/Pics

  9. chengny

    6.2l diesel starter wiring

    The attached might provide some guidance. The LL4 is a heavy duty version of the LH6 - but they are both 6.2 liter diesels. The drawings were pulled from the "engine electrical" section of the 1982 Service Manual.
  10. chengny

    OPSU is in, but no wire.

    First check the fuse labeled GAU/IDLE. Its located up near the top on the LH side of the fuse block: Next check that the instrument cluster is grounded. The common grounding bus block is on the LH cab sidewall - above the parking brake operatorhhhhhhhhhhh: BTW - the speedometer is...
  11. chengny

    OPSU is in, but no wire.

    On this one; don't be so quick to blame the horn control circuitry. There is another branch circuit on that fuse - the cigarette lighter. And it is notorious for getting shorted to ground. Try unplugging the single orange lead from the base of the lighter and see what happens. The dome light...
  12. chengny

    OPSU is in, but no wire.

    I show I show the lead to the oil pressure sender as a TAN 20 AWG. See .5 TAN 31 below: It transits the firewall connector at the bottom row, inner bay of the engine harness block. Like this:
  13. chengny

    Quick Question about coolant temperature senders/ sensors

    As info; 1/2 NPT is very close to 11/16" in diameter and 3/8 NPT is just about 9/16" diameter. You should be able to use an open end wrench of each of those sizes to gauge the body of the sensor - and make a good educated guess.
  14. chengny

    Electric choke power source

    At this point...you'd probably only find one in a junkyard. I would suggest that you don't try to make your own out of pipe fittings. I have tried several times before and the end result always has one problem or another (usually it's too big).
  15. chengny

    Front shock bolt torque

    Per request, cleaned up front suspension specs: And rear specs:
  16. chengny

    Front shock bolt torque

    Front Suspension Bolt Torque - Nm (FT. LBS.)
  17. chengny

    Electric choke power source

    Yeah, the oil pressure switch performs two functions. 1. At start-up it is designed to apply battery voltage to the choke heater coil as soon as the engine is running. There may be a momentary lag - until oil pressure is established (around 10 psi). 2. When the engine is shut off (and oil...
  18. chengny

    Electric Speedo

    Here's a diagnostic procedure. Pretty lame, I know, but it's all they provide in the Service Manual:
  19. chengny

    1987 brake spec sheet

    Haha that's funny. And you want it back, right.
  20. chengny

    Giving rusty parts a smooth clean paintjob?

    I use POR-15. It is nice and thick and lays down smooth. It will fill in a lot of pitting.
  21. chengny

    Adjusting new hydraulic lifters 92 5.7

    Before you begin the valve lash (actually it's called the pre-loading) process, there are a couple of things worth mentioning: Before you begin, it is vital that any lifter pre-load that you may previously applied is completely released. Since both your cam and lifters are new, it doesn't sound...
  22. chengny

    Heat Riser Help to Pass CA Smog

    I get the same P/N as Craig. Although, for some reason, it isn't listed for 1984. But it does show for 83 and then 85 and up.
  23. chengny

    Power window switch issue

    At the connector terminals, to roll window down, use two jumpers and connect: PNK to DK BLU and BRN to BLK If that tries to drive the window up, reverse the jumpers: PNK to BRN and DK BLU to BLK The schematics are unclear on exactly which polarity causes the motor to rotate in which direction.
  24. chengny

    Engine harnesses

    Diesel engine compartment and cab side: Gas engine compartment:
  25. chengny

    Brake light switch mounting

    There should be an "L" shaped striker that is bolted on to the brake pedal arm. That striker is what makes contact with the brake switch button. When the brakes are in the released position (pedal is up), it pushes on the button and holds the switch contacts open. Depressing the pedal moves the...

Latest posts

Forum statistics

Threads
42,260
Posts
912,509
Members
33,765
Latest member
coolhandluke042
Top