Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

94 Chevy 1500 4wd problem

Discussion in '1992-Present Chevy & GMC models' started by Thumper, Nov 23, 2001.

  1. Thumper

    Thumper 1/2 ton status

    Joined:
    Feb 17, 2000
    Posts:
    1,582
    Likes Received:
    0
    Location:
    Alberta Canada
    A friend of mine asked me to check into his trouble for him. He has a 94 1500 p/u. When he shifts into 4x4 with the floor shifter, it wont engage 4wd. The light wont light, but in 4lo, it is positive lo range, but no 4wd. Just wondering what I can tell him to check.

    Thanks for the input.

    Mike


    <font color=blue>Thumper
    85 Fullsize Jimmy
    [​IMG]
    <font color=red>Aint Skeered!! </font color=red>
     
  2. 4x4_76

    4x4_76 1/2 ton status

    Joined:
    Jul 22, 2001
    Posts:
    628
    Likes Received:
    0
    Location:
    Ylämaa, Finland
    Maybe the thermo-actuator,or what ever it is called,that disconnects the front axleshaft,is defective.Especially in cold weather there's been problems.
    I had samekind of problems on my K1500 in winter time,sometimes I had to wait way too long to 4wd to engage.

    I'm too lazy to stick shift,that's why I prefer autotranny.
     
  3. MudNurI

    MudNurI 1/2 ton status

    Joined:
    Jul 15, 2001
    Posts:
    2,113
    Likes Received:
    0
    Location:
    VT
    my 94 Suburban had this problem sometimes, I just put the truck in N while driving, and gave it a few seconds, and boom it went in. not sure why, but it seemed to work

    --Brandy

    IF ONLY THE 4 YEAR OLD COULD TURN A WRENCH
    1986 K5 4" skyjacker suspension 3 " body, 14 bolt rear 12 bolt dana 44 front, TIRED ol 305-
     
  4. 95 Silverado

    95 Silverado 1/2 ton status

    Joined:
    Nov 9, 2001
    Posts:
    467
    Likes Received:
    0
    Location:
    Central PA
    It is most likely the thermo type actuator causing the problem. there is an updated style of actuator that works much better and is more reliable. It costs about $100 for the actuator and wiring harness.

    '95 Chevy Silverado 1500
    5.7 V8-NV4500- 3.73 rears
     
  5. HarryH3

    HarryH3 1 ton status Author

    Joined:
    May 31, 2000
    Posts:
    10,384
    Likes Received:
    2
    Location:
    Georgetown, TX
    Here's one option: <a target="_blank" href=http://www.warn.com/InternetHome/products/4WDHubs/HubsActuator.shtm>http://www.warn.com/InternetHome/products/4WDHubs/HubsActuator.shtm</a> from Warn. Someone also makes an electrical unit to replace the heated-gas stock actuator, but I can't recall who makes it.

    <font color=black>HarryH3 - '75 K5</font color=black>
    <a target="_blank" href=http://www.angelfire.com/super/ThunderTruck>www.angelfire.com/super/ThunderTruck</a>
    It's a great day to be alive...
     
  6. mudrunner78

    mudrunner78 1/2 ton status

    Joined:
    Sep 7, 2001
    Posts:
    366
    Likes Received:
    0
    Location:
    Rocksprings, TX
    Tell him to get a 4x4 posi lock and forget about it. 200 bucks and he always has 4WD when needed no matter how cold. Plus he then gets 2wd low range
     
  7. jbissette

    jbissette 1/2 ton status

    Joined:
    Aug 8, 2001
    Posts:
    101
    Likes Received:
    0
    Location:
    Idaho Falls, Idaho
    I have a posi-lok in my truck also. It works when you need it to.

    88 Chevy K1500, 350 TBI, TH700R4, 3" body lift, 33x12.50x15 Tires
     
  8. Shorts

    Shorts 1/2 ton status

    Joined:
    Oct 16, 2001
    Posts:
    336
    Likes Received:
    0
    Location:
    CC & SA, Tx
    i third...get a posi-lok. check jcwhitney. i think its $159 there. cable/manual opertated front diff engagment.

    <font color=blue>Shorts</font color=blue>

    '94 K1500
     
  9. 79ChevySB

    79ChevySB 1/2 ton status

    Joined:
    Jul 8, 2001
    Posts:
    178
    Likes Received:
    0
    Location:
    Denver CO
    Where did you get your posi lock from? How does it work? Thanks.
     

Share This Page