Jump to content

Common Rust Spot For Brake Lines?


Recommended Posts

Posted

anybody else have brake lines showing rust right by the master cylinder just inside the driver side wheel well liner? when i asked about it at the dealer i was told its common...is this just a retarded idea by gm or what to leave that stuff exposed? mine are starting to become covered in rust and the trucks only 6 years old :thumbs:

Posted
anybody else have brake lines showing rust right by the master cylinder just inside the driver side wheel well liner? when i asked about it at the dealer i was told its common...is this just a retarded idea by gm or what to leave that stuff exposed? mine are starting to become covered in rust and the trucks only 6 years old :thumbs:

 

Mine don't have an once of rust on them, not even under the truck along the chassis. But, I wouldn't think that rust by the master cylinder would be normal, I've never seen brake lines rust there, not even on 30 year old trucks. Don't let them tell you it's normal, it could bust and you could lose your brakes. Many GM trucks did this around that area, just do a search on google about silverado brake lines busting from excessive rust spots.

Posted

mine are corroding at the same spot just under the wheel liner on both sides. my truck is only 4 years old. i took it in as my brother has a 2500hd and his brake line corroded through and exploded but the dealer said it was fine that is was just lite surface corrosion.

Posted

mine are fairly rusty, and i thought it was weird that this was common....right on the frame where the lines are exposed to whatever the tire decides to chuck in there is where it is the worst..i live in an area with pretty harsh winters but i mean really they coulden't have covered the engine bay a little better?

Posted

11 years and mine are still shinny and no rust.....

 

But I am not in a snow or ice area....... So no Salt......

 

Jbo

Archived

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

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts
  • Member Statistics

    342,840
    Total Members
    8,960
    Most Online
    appletrav
    Newest Member
    appletrav
    Joined
  • Who's Online   0 Members, 0 Anonymous, 401 Guests (See full list)

    • There are no registered users currently online
  • Latest Articles

  • Posts

    • This is a 1/2 ton thing ONLY.  All HDs 2020-2026 have the two speed transfer case, with Autotrac as an option.     1/2 tons 2019-2026, regular 4x4s come with a single speed case (no 4LO!), and trucks with Z71 ordered, or all Trail Boss trucks come with the 2 speed case.  2 speed case is also an option on WT, and is also standard on High Country.  
    • 2013 5.3 still to this day calls for the PF48 filter.  Which as a 15psi bypass pressure.     There is a TSB, 17-NA-157 that talks about the PF-63 and PF-64 filters which have a higher bypass rating of 22psi.    TSB HERE - temp.xml   "Beginning in 2012, the oil pumps began to regulate main gallery feedback instead of pump out pressure. This means that the oil pump now does not begin to regulate until pressure is built up to the main gallery. This change reduces the amount of time it takes to provide oil to the engine bearing and lifters during extreme cold start conditions.  Main gallery feedback oil pump control systems are present on the following engine families which use Spin-on oil filters: Small Gas Engine (SGE), Large Gas Engine (LGE), High Feature (HFV6) Gen2 and Small Block Gen5 gasoline engines. These engines with the main gallery feedback oil pump control systems are factory built with an ACDelco® oil filters"   It also calls out what engines use those filters.  The gen 4 small blocks were not on that list (LMG, LC9, L9H, L92, L94, L20, L96).  Gen 5 small blocks use the higher pressure filter.          That all said...   Your 7045 Napa filter is the PF63 equivalent, with 22psi bypass.  You are already using the higher bypass pressure filter.  You CAN keep using it, you don't technically have to use it though.  
    • Do you know WHY the filter relief setting was increased to 22 psig?    When the new system goes into the second stage the pump volume ramps up considerably. It was found that the 15 psi filter bypass setting put the filter in bypass on a warm engine when the second stage was activated. Raising the filter bypass setting forced the filter to do what it designed to do. Filter. Preventing debris from circulating during high load, high rpm operation.    So next question is how did GM find this out? VLOM/lifter failures and a deep dive by Melling Corp.    Last question. Is it required? Look at it like this; a motor may be equipped with a rev limiter. But it only works if the set point in reached. That 22 psig setting only matters if the pressure differential across the filter media exceeds 15 psig during normal warm operation. Second stage kicks in around 3000-3500 rpm.    I can't answer your question because I don't know you and how you use the truck. But I think there is enough information here to let you decide for yourself. 😉
    • Probably not their first rodeo, so it should go as planned most likely.  Typically the service manager or tech doing the swap will put some seat time to shake it down after they get it all put back together.  We usually put 50-100mi before we hand them back so if something happens, its not after you get it.  A coolant leaks, oil leaks, a ground left off or loose, vibration, etc.     The new engines so far have been good?  There's been a couple that have popped out there again (the replacement engine) but most have been okay.  
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...