Jump to content

Recommended Posts

Posted

I took my 2000 z71 & had front axle seals put in, so it would stop leaking differential fluid. Ever since I picked the truck up 9 days ago, it has been leaking out of the vent tube. I took it back to the shop & they said it was probably over filled. But leaking for 9 days now, I wonder if that is the really the problem?

 

 

Posted

if you live in a cold clime then 3 weeks depending on how overful, my first ? for you is about the shop that did the work, why did they not remidey this situation, second question...do you know what gear oil smells like as that may not be the issue

Posted

if you live in a cold clime then 3 weeks depending on how overful, my first ? for you is about the shop that did the work, why did they not remidey this situation, second question...do you know what gear oil smells like as that may not be the issue

I live in the south, 70 degrees here Today. What other kind of oil would come out the vent tube? I didn't start this until I had the new seals put in.

and you run the risk of blowing out all the seals

 

 

I know!! That's why I am posting on here trying to make sure that's the actual problem.

Posted

sorry to bust your balls, but mor info is needed, is it gear oil, and how do you know the smell of gear oil

Posted

and you believe a shop the did your repair wrong:)....sorry, had to toss that out

Posted

It was leaking at the axle seals when I took it in for repair. Never has leaked out of the vent tube since I have owned the truck for 11 years. Didn't even leak this bad, when the seals were worn.

Posted

if it is building pressure that bad then the shop that did the work will get a second chance to do it right

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   2 Members, 0 Anonymous, 413 Guests (See full list)

  • 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...