Jump to content

Missing manifold bolt?

white1500

Recommended Posts

white1500 Senior Enthusiast

white1500

Posted
Posted

I was giving my truck a look for over today after tightening the battery cables and noticed that I might be missing a bolt on the front end of the drivers side manifold. The bolt would be just on top of the very first spark plug.

 

Can someone check if they have a bolt there?

 

And if I'm missing a bolt what's the best source for just one single manifold bolt?

 

I don't have a clue how one would fall off...

 

Tyia.

  • Replies 49
  • Created
  • Last Reply
white1500 Senior Enthusiast

white1500

Posted
  • Author
Posted

Pardon my ignorance, but why will I need to remove the entire manifold? In order to get the broken bolt out?

 

And if its that big of a deal to fix then its going to stay this way for a while. Hopefully its not causing any issues.

 

But thank you for the heads up!

Daryl LBZ Senior Enthusiast

Daryl LBZ

Posted
Posted

I have both of mine missing on the front of both sides. The drivers side leaks pretty good when the motor is cold. I'm getting ready to remove the manifold, and get the broken one out, and replace them with studs more than likely if possible.

white1500 Senior Enthusiast

white1500

Posted
  • Author
Posted

Please write up or share as much as you can of the process. I'd like to take care of this in the fall.

Daryl LBZ Senior Enthusiast

Daryl LBZ

Posted
Posted

Will do. I plan on spraying the bolts with PB Blaster every day a few days before hand. Hopefully I can get them off without breaking anymore of the bolts.

Bob D Enthusiast

Bob D

Posted
Posted

...need to remove the entire manifold? In order to get the broken bolt out?

I would suggest first determine if bolt is broken or missing as post title suggests.

PS: My truck was in for warranty work (minor oil leak) @ 1 yr old. Apparently two bolts were missing from oil pan! Must've been 3rd shift on GM assembly line...

  • 3 weeks later...
Daryl LBZ Senior Enthusiast

Daryl LBZ

Posted
Posted

I wanted to update this post with something I've found. I received my catalog from LMC Truck recently, and I found clamp style brackets that will supposedly fix the leaking problem if one of the end bolts are missing. I'm thinking of trying them.

 

uploadfromtaptalk1403066698099.jpg

uploadfromtaptalk1403066698099.jpg

uploadfromtaptalk1403066698099.jpg

uploadfromtaptalk1403066698099.jpg

00Silverado4x4 Senior Enthusiast

00Silverado4x4

Posted
Posted

I wanted to update this post with something I've found. I received my catalog from LMC Truck recently, and I found clamp style brackets that will supposedly fix the leaking problem if one of the end bolts are missing. I'm thinking of trying them.

 

attachicon.gifIMG_20140618_243912809.jpg

That's awesome, I found a few websites that offered those brackets too. I've had the back driver side broken for quite a while and just recently the front driver side is now broken off. Looks like I'll be ordering one for each end pretty soon. It doesn't seem to be leaking (going off sound only) but I don't want to loose any more bolts.

trapperman83 Enthusiast

trapperman83

Posted
Posted

I have a busted one on passanger side front. I was seriously considering headers but getting those bolts out is almost impossible when there snapped off in aluminum a guy would almost have to Heli coil them.

white1500 Senior Enthusiast

white1500

Posted
  • Author
Posted

... After I washed her today I checked the manifolds and I'm missing two bolts! The front and back bolts on the drivers side.

trapperman83 Enthusiast

trapperman83

Posted
Posted

... After I washed her today I checked the manifolds and I'm missing two bolts! The front and back bolts on the drivers side.

Have u checked to see if there broke off?

white1500 Senior Enthusiast

white1500

Posted
  • Author
Posted

No I haven't had the opportunity to get that close of a view just yet but I'm assuming that they've snapped off. If this is the case I will be going with fix posted above.

efritz Enthusiast

efritz

Posted
Posted

I have written another post on this, but I have done this multiple times. You do not have to unbolt the manifold flange bolts. What I do is unbolt all the bolts that haven't broken, and pull both manifolds down at the same time, the ones that are broken off sticking out, I heat up and try with a vise grip, if that fails just weld a nut on and back it out. The ones that are broken off flush you have to build up a little weld and then weld a nut on. ALWAYS wait for the bolt to cool down or the aluminum threads will be damaged, I like to use ice on the bolt as it shrinks the bolt and makes it easier. GM has new bolts, go to the dealer and get them. You shouldn't need new gaskets as they are stamped stainless. Not too bad a job.

Archived

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

Go to topic listing

  • Latest Articles

  • Posts

    • pyoung62
      2026 DENALI 6.2L

      By pyoung62 · Posted

      I agree with Tim.  As tech heavy as engines are these days, no way I’d be an early buyer of the new 6.6.  Of course, I bought my ‘26 Denali w/the 6.2 after dumping my Tundra with it’s defective 3.5 liter imploding engine disaster, so I’m a little gun-shy.  That said, my 6.2 has been rock solid.  I don’t drive it like I do my BMW Z4 M40i, but I don’t baby it either.  I got a V8 for a reason.  But I’m averaging 18 around town and 22 highway.  I have seen 24 highway as well when I wasn’t loaded up heavy.  Considering my Tundra with the twin turbo V6 only got 14.5 in town and 17 on the road, I’ll take the 6.2 all day, every day.  If I were you, I’d grab a ‘26 while you can.  Inventories are probably gonna start dropping and I’ll bet the deals will start looking sweeter as well.
    • ShowMeShooter1332
      Can you add a 360° Cameras hard button to a 2021 Sierra?

      By ShowMeShooter1332 · Posted

      I am curious if anyone has figured out a way to add an hard button AUX or 360 Camera switch to the center row of switches. I have a 2021 AT4, and want to split the hill decent button and add a 360 camera button so that you don't have to go into the center display and locate the camera functionality, etc...   My father's 2024 Yukon XL AT4 and it has a hard button, see below. I found this thread on the Yukons, but it seems like there may not be a part number for the 2021 sierras. https://www.gm-trucks.com/forums/topic/255339-adding-hard-button-for-camera-on-2021/ Anyone else figured this out. Seems like it would need to be a custom switch!   I am getting ready to install the auto stop/start eliminator, so would be nice to knock them out at once.     Upvote1Downvote0Go to comments
    • Grumpy Bear
      Winter Returned

      By Grumpy Bear · Posted

      Looks like the entire state is burning. 😬
    • Chuck FB
      Oil Consumption

      By Chuck FB · Posted

      Through the years it hasn't been my typical method as I tried to drop oil on an engine that was hot from having been worked, however that was not always practical and had to fire up a unit and let it warm up reasonably well and drop the oil when I had the time to do it but am referring to not only vehicles but a variety of farm equipment and highway tractors etc. However on a vehicle where one is crawling under it and the exhaust is nearby to ones body and if wanting to pull the plug without danger of being hit with boiling hot oil or attempting to remove a HOT oil filter, its sure safer and easier to not have everything smoking hot and can remove the filter right away when under the vehicle and let it all drain. Of course its not the end of the world if a bit of oil stays in the engine that might have eventually found its way out, I like to get out as much as possible but any oil changes that take place in shops would rarely be sitting around for very long at all before the plug is thrown back in and filter slapped on and oil poured in and sent out the door quick like. There would be very little time spent ( assuming they even did it ) in starting the engine with oil to fill the filter, then waiting to verify the level on the stick. A good reason to check ones oil level shortly after a shop changed the oil on a vehicle just to make sure its correct and to look under for any oil around the drain plug or filter. 
    • CPhelps
      4 Wheel Drive System

      By CPhelps · Posted

      Cool to see another Vermonter!

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...