Vladimir2306
Full Access Member
- Joined
- May 18, 2023
- Posts
- 725
- Reaction score
- 703
Not yet, the new engine has arrived from machining, now it is washed, cleaned, and assembly begins, checking all gaps and puffs
BREAKING: GM is officially recalling the L87
- Thread starter DontTaseMeBro
- Start date
Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.
Got it, thanks.
WalleyeMikeIII
Full Access Member
GM sent letter to dealers telling them they are going to need a PicoScope for the 000 Recall Inspection Procedure....
Can't wait to see the final procedure published...going to be interesting.
That’s a borascope? This whole thing is a very fine tolerance miss. Won’t be able to measure parts, guess they are just looking for damage of from out of tolerance parts. Not preemptively looking for the out of tollernce part that leads to damage.
Interesting to say the least!
Interesting to say the least!
WalleyeMikeIII
Full Access Member
No, it is an Oscilloscope...
O interesting. Not familiar. Guessing it measures frequency of vibration?
WalleyeMikeIII
Full Access Member
Oscilloscope is an electronics diagnostics tool, lets the user capture and observe electrical signals on the screen (This particular PicoScope is a custom one for GM, you can search for it on the internet)
For this issue, could be used for a host of inspection procedures...my guess is it will have something to do w/ the cam and crank position sensor relationships. But could be vibration or something else too. Bulletin also mentioned a special wiring harness..
My point of posting was to let the community know it looks like they are getting some work done on the inspection procedure, if they are advising dealers to have the proper tools on hand for when they finally release the procedure.
BADRIDES
Full Access Member
- Joined
- Dec 18, 2015
- Posts
- 1,769
- Reaction score
- 1,195
We already have that tool on hand but I'm telling you we have already had meetings about this with the some GM insiders and its still gonna be a long road to hold. Your bigger dealerships are gonna get parts first. It's also gonna be based on who files claims for engines or parts first
Last edited:
PicoScope Automotive Oscilloscope Kits | PicoScope
PicoScope is a powerful automotive diagnostic tool that gives you detailed insights into your vehicle’s systems.
www.picoauto.com
Yea, this will be interesting. This was a 10 year old special tool that dealers are supposed to have. Pico Scopes are pretty good if you know how to use them. I just wonder how many dealers still have the Pico Scope on hand and if it works. If not, they need to order one. Wonder if there will be a run on these, the link above shows no stock, I am guessing the actual one GM is referencing has been superseded a few times in 10 years.
I think this "Inspection" procedure will be growing and I am betting GM will want the dealers to save what ever info from the "Inspection" so if the engine fails down the line, GM will claim it was fine at the time of "Inspection". A big CYA in case someone gets hurt in the future would be my guess. A bit skeptical that you can really give a Go/No Go to an engine that may only be slightly hurt, but maybe there will be something interesting that comes up.
While we as the Internet community do not know exactly what went wrong with these 6.2l engines, based on GM's comments in the recall documents and others that are in the know, it seems the crankshaft final polishing may have been a major factor in these failures. To run thin engine oil, the surface finish has to be very smooth otherwise problems will occur.
I do not expect these "Inspections" to begin before mid June and this is if the dealers have all the items they need. With the numbers that need to be "Inspected" I am expecting this to take quite a while. Will be interested to see if the 0W40 oil is still a fix.
If I has a vehicle in this recall window, I would strongly consider 0W40 now until the time of the "Inspection". Who knows how sensitive the "Inspection" will actually be and if you have 0W40 in the engine at the time of "Inspection" will if mask what GM is supposedly looking for.
We will be discussing this for years to come.
I do not expect these "Inspections" to begin before mid June and this is if the dealers have all the items they need. With the numbers that need to be "Inspected" I am expecting this to take quite a while. Will be interested to see if the 0W40 oil is still a fix.
If I has a vehicle in this recall window, I would strongly consider 0W40 now until the time of the "Inspection". Who knows how sensitive the "Inspection" will actually be and if you have 0W40 in the engine at the time of "Inspection" will if mask what GM is supposedly looking for.
We will be discussing this for years to come.
Similar threads
