Jump to content

Noisy Drive Line

04ChevZ71

Recommended Posts

04ChevZ71 New Member

04ChevZ71

Posted
Posted

Hi Everyone.

 

I am new to these forums. I have already found quite a bit of useful info here. Kudos.

 

I recently bought an 04 Chevy Silverado Z71. Something in the drive line is making a bang/klunking when shifting from reverse to drive or vice versa, also make a similar noise when it is shifting thru gears while driving. The noise is not consistant... Sometimes it doesnt happen, sometimes its louder than others. I just had it in the transmission shop today. They replaced the rear u joint (seized) and checked the others saying that they are good. I also had them yank the diff cover and check the gears. Is this a transmission or transfer case problem? The sound is not coming from the front of the vehicle I am sure of that. The noise sounds similar to me as a bad u joint.

99silverado1500 Senior Enthusiast

99silverado1500

Posted
Posted

its the slip yoke. Remove the driveshaft and grease the slip yoke and most of hte problems will go away. Gm has lots of slopage in the drivetrain, so you will still have shifting sloppage.

04ChevZ71 New Member

04ChevZ71

Posted
  • Author
Posted

I'm not exactly sure what the slip yoke is. I am guessing that it is the shaft that slides into the transfer case. What kind of grease should I use. Why would the transmission shop not have greased this when the put the driveshaft back in today.

hoorders Enthusiast

hoorders

Posted
Posted
I'm not exactly sure what the slip yoke is. I am guessing that it is the shaft that slides into the transfer case. What kind of grease should I use. Why would the transmission shop not have greased this when the put the driveshaft back in today.

Yes it is that shaft.........the tranny shop didn't grease it because its not a usual spot to grease.......gm has had a service bulletin about the slip yokes.....they recomend replacing them with a new one that is now zinc plated........I just grease mine every 5 or 6 months and its good to go..... :banghead:

04ChevZ71 New Member

04ChevZ71

Posted
  • Author
Posted

Ok I will try that when I change my oil this weekend. Will regular ball joint grease work or do I need the white lithium grease. How much do I put in there. Do I just fill the splines with grease?

 

I have the regular stick shift transfer case. How much and what kind of fluid does it take? The transmissions shop said the fluid was shot. How often should the transfer case fluid be changed. I will probably do the transmission too. I have 78000 km.

  • 1 year later...
scrisp Enthusiast

scrisp

Posted
Posted
Ok I will try that when I change my oil this weekend. Will regular ball joint grease work or do I need the white lithium grease. How much do I put in there. Do I just fill the splines with grease?

 

I have the regular stick shift transfer case. How much and what kind of fluid does it take? The transmissions shop said the fluid was shot. How often should the transfer case fluid be changed. I will probably do the transmission too. I have 78000 km.

 

Did this get fixed? This sounds exactly like what we're hearing on our '05 Tahoe. It sounds almost like it does when I have to put it in 4WD Low, when the transfer case and everything is synching up, it just does it in 2WD when shifting back and forth from reverse to drive.

 

Is there a fitting on the driveshaft to grease these, or do they need to be disassembled?

 

Thanks,

Scott

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Latest Articles

  • Posts

    • Chuck FB
      Oil Consumption

      By Chuck FB · Posted

      Ok that confirms the extra quart theme they are still going with which must mean they have noted some initial use more so then some engines and probably the bigger factor in all of this probably isn't the engine so much as its the insane distance or OLM that lulls a lot of the driving public into driving their new vehicle off the lot and not even doing one short interval oil change because the manufacturer doesn't say different and if the dealer follows that logic as well. Selling the rarely needing to be serviced concept seems to go over well with the public that wants to get away with as little as possible for dollars spent on the vehicles maintenance and I bet there are 3.0 engines just like other vehicles out there that never have their oil checked by the owner which goes back to why they probably felt the need to add that extra quart to avoid a costly theme.    Speaking of cutting filters open, it was probably over two years ago now that a youtuber who buys vehicles to do longer term reviews and pulls a fifth wheel through the mountains of Colorado on summer trips and that becomes part of the testing. Anyway he had a GM HD with the 6.6 gas and a Ford 250 with the 7.3 gas at the same time and of no surprise the Ford had more power etc but somewhere along the way in the few thousand miles he put on the truck, he changed the oil and was seeing glitter and cut open the filter and yeah, things were not looking spectacular. The truck about that time or soon after seemed down on power compared to what it had been and then threw some engine code, I expect the cam/lifters were failing and so he brought the truck back to the dealer and made some deal to get out of it as he knew it would sit for months waiting on a new engine as they were so backlogged at the time. He kept the GM for some time after that using it exclusively until he sold it after buying his next vehicle to do a review on. Definitely the filter can tell a story when things are starting to go sideways, but it would be a sickening feeling to cut it open and be faced with an ugly mess like that and be running a magnet through the pleats and the oil on the dirty side of the filter and see all the fines sticking to the magnet.    The dealer may have some ideas based on experience as to where that coolant smell is coming from, I would imagine if they can't find it but its smelling they would put dye in it to they could give it a run cycle and use the black light to see where it pops up, if its a hose connection, water pump, rad or even a head gasket etc. 
    • riddler
      Torsion adjustment

      By riddler · Posted

      Good looking truck, suspensionmaxx looks like a solid option
    • riddler
      Torsion adjustment

      By riddler · Posted

      Thanks for the info, im considering a leveling kit or 4" lift kit.
    • davester
      frustrating P0446 code

      By davester · Posted

      charm.li (website) has the vehicle-specific diagnostic procedure for that code, you can use to find what the cause of it is.
    • KARNUT
      Oil Consumption

      By KARNUT · Posted

      It’s at the point of amusement. I’m retired I have time. It’s fun seeing people try to convince me I’m using oil. I’m buying oil at the prescribed time. It gets drained and new goes in. Do I add in between, no. My oil doesn’t even get dirty in 5k miles. I don’t even see any drop on the stick. I check in the same place. All is well.

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...