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popping noise only when...

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by ftn96, May 30, 2001.

  1. ftn96

    ftn96 1/2 ton status

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    Im getting this wierd, sorta loud popping noise when I make a fairly sharp left hand turn. I haven't had a chance to "really" look into it. I wanted to see where you all think I should start.
    I have replaced, list: Ball joints, axles joints, tie-rods, shocks, has lift, steering arm, wheel bearings, rotors, brakes, extended lines...
    I was thinking that I need to check me frame for cracks. But I was hoping that I could get away with not having to install the steering brace for a while longer. Can you see the cracks with the steering box still on? Obviously if its real bad you can. But where does the crack normally start?
    Or is this something else.

    Thanks, In advance......

    My president is Steve Fox.
    90-350TBI-TCI700-241-33"-10 bolts w/4.10's,
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  2. Grim-Reaper

    Grim-Reaper 3/4 ton status Author

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    Have the better half get in there and saw the steering back and forth while you snoop around. You will then run in the house and call ORD for the brace [​IMG] Lot of frame movment even when it isn't broken. One thing I would look for is bad rivits in the frame. I have had several that looked fine till it got the steering puting some force on the frame. then you could see the cross members shifting on the rails.

    Diging it in the dirt with my K5's
    Grim-Reaper
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  3. ftn96

    ftn96 1/2 ton status

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    10-4. Only one problem....She is 5 1/2 months pregnant adn she cant get in the truck. Well, I could use the step ladder. LOL!!!!!! I'll get my neighbor over here to help. He owes me, I just replaced the clutch in his S-10 for free.

    My president is Steve Fox.
    90-350TBI-TCI700-241-33"-10 bolts w/4.10's,
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  4. ftn96

    ftn96 1/2 ton status

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    Ok, update. The frame is cracked. I went ahead and put the brace on till I can get the weld on part installed. But we still have load pop, again, only when Im driving and turn bout 3/4 turn or more. If I swing way wide and stay off the gas it doesn't do it. Just looking for areas of interest when looking into it from the under side.
    It may still be the crack making the pop. But I cant figure why it wont do it when sitting in the driveway. Obviously weight shift during a rolling turn would add more stress. Its just bugging the [censored] outta me.

    HELP! I'm under my truck and I can't reach my beer![​IMG]
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  5. FWP

    FWP CRS

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    That sucks, sorry to hear that. Don't crawl under the truck, thataway you can drink that beer (or several[​IMG]) and maybe feel a little better about the crack in the frame[​IMG].......

    <A target="_blank" HREF=http://fwp4x4.rockcrawler.com>http://fwp4x4.rockcrawler.com</A>
     
  6. Jamie

    Jamie Registered Member

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    My blazer's making the same noise and after further investigation the noise sounds like its coming from the steering box. The shaft that holds the pitman arm on is moving up and down causeing a popping sound but is much louder and more pronounced when the blazer is in motion. I haven't replaced the box yet (lack of funds) hope it doesn't get worse. Anybody else have or had this problem? Could use some input.
     
  7. ftn96

    ftn96 1/2 ton status

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    Ok, keep'm coming. [​IMG]

    HELP! I'm under my truck and I can't reach my beer![​IMG]
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  8. 84_Chevy_K10

    84_Chevy_K10 Banned

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    How much work is it to install the brace? Is that pretty much a guarentee that the frame won't crack?

    Tim
    '84 Chevy K10, lifted, loud, fast, and 3/4 ton axles
     
  9. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    The brace isn't that much work from what i've heard. Steve's UAV managed to crack the frame after the brace but he wheels the wee out of that truck with 37's...[​IMG]

    Its a good way to prevent a lot of flexing and save yer frame. Now if only i had a few bucks to order one myself...[​IMG]

    Rene

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
     
  10. Grim-Reaper

    Grim-Reaper 3/4 ton status Author

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    You can adjust the preload on that and may not need a box. On the top of the box you will see a Jam nut with a stud in the center that has a allen key. Back of the jam nut a 1/4 turn and give the Allen head a 1/2 a turn and see if that fixes or improves the problem.

    It's not my damn planet monkey boy!
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    Grim-Reaper
     
  11. ftn96

    ftn96 1/2 ton status

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    I'll have to get out and see if that its what is happening on mine. Im still pretty sure it is the frame. I hope that is all it is.
    I dont mind fixing stuff, I just hate trying to locate the problems.

    HELP! I'm under my truck and I can't reach my beer![​IMG]
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  12. k5blazerus

    k5blazerus 1/2 ton status

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    hey try tighting your front leafspring bolt that bolt to the housing 120flb.
    colin

    IF its not broke dont fix it
     
  13. ftn96

    ftn96 1/2 ton status

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    They are tight. 150 ftlbs

    HELP! I'm under my truck and I can't reach my beer![​IMG]
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  14. shawnboy

    shawnboy 1/2 ton status

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    I had a similiar problem. It turned out to be 3 things. I went through 4 tie rod ends on the drivers' side, thank God for lifetime warrantees. Also the leaf spring bushing was popping on left turns and finally, I had a weld break loose on the floor where it meets the firewall. This was the hardest pop to figure out.
    Good Luck, Shawnboy.
     
  15. Leadfoot

    Leadfoot 1/2 ton status Premium Member

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    I had the same noise when turning left. I would have someone turn as sharp as they could back and forth in the driveway but no sound. Puzzled the crap out of me because when I got back in and took a left hand turn going down the road, I hear the pop again and I was thinking to myself WTF?
    I then took a real close look at all steering components. The frame wasn't cracked and I had installed the ORD steering brace (thanks guys!) and the front end was COMPLETELY rebuilt. I then noticed the adjusting sleeve on the draglink and the bolt and nuts. When I turned sharp left, they came awfully close to the raised steering arm (but did not hit) when the wheels were turned in the driveway, but when body/chassis role occured they hit. The cure was to loosen the bolts on the adjusting sleeve, rotate slightly, retighten, and test drive. Since then no popping sound. This may not be the case with yours, but it's worth a shot.
    Hope this helps.

    If you didn't build it yourself, how can you call it yours.......?
     

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