Paintor

You Canadian priks. You get a recall when Americans dont. Damn chinese parts killin us both.

Ask Melling. They make the lifters. They say allllllll the failures are from oil pressure dropping below....read: https://www.melling.com/wp-content/uploads/2018/03/Melling-tech-bulletin-on-GM-LS-Deactivation-Lifter-Issues-3.1.18-1.pdf

Check “PCM B” fuse in fusebox. If you stick in another one and it pops, stop. Electrical short.

Polaris Razors were catching on fire. If somebody wanted to burn their house down, just put a Polaris Razor in the garage. Whalla. I see opportunity for Canada. Turn on your rear window defrosters.... Is it a criminal act? No. Paid $50,000 for a truck with a bloody window defroster.

PCM turns on and off the alternator for charging. Per specs on a factory battery and expected load use. In the old days, the alternator stayed on charging the battery as long as the key was on. They CEASED lowering the voltage to the wire to energize the alternator and now just flick it off with the PCM and why your trucks voltage meter jumps between 12 and 14 while driving. For a few years they were lowering the voltage to the alternator to keep the gauge at 14 volts while running ...yet lowering amp output. Now...”Fuel Economy” pipe dreams of savings.They just flick it off so your electrical components like electric steering and amps have to deal with voltage fluctuation. If we had the old school headlights this would be a major issue of lights dimming and getting bright. Why we have LED headlights now. Computer controls voltage to them, not battery or charging system voltage.

Report the incident to the NHTSA and CoreyWatson dot com who is the Lawfirm for the Federal Class Action. Failure to file a NHTSA Complaint, your experience did not happen. Only about 200 have filed NHTSA complaints, likely less than 10% of people it happened to.

Contact Attorneys at coreywatson dot com. They are doing the Federal Class Action for the vacuum pump.

Replace the PCM B fuse. 20 amp. If it pops, stop. Dealer will replace fuel pump. Plug melted to fuel pump because of a short. Rain. If PCM B fuse is fine, put jumper cables on it and try starting.

Delete this before I have to call SECDEF.

Stop putting mileage on it. More you drive it, less GM has to pay you.

GM recycled the “LT” name, but Gen V is indeed LS. Email Melling. https://en.m.wikipedia.org/wiki/LS_based_GM_small-block_engine

In the old days, 12 volts was sent to alternator to kick on charging system when key turned on. Resulted in overcharging of batteries. PCM now cycles alternator on and off to keep from boiling the battery off. 0 weight oil in Cali in hot temps getting low oil pressure....no fear. You can get a 5.3 with 20k miles from a crashed truck on Ebay for $2k. Keep trusting GM and just drive it. Insufficient Oil Pressure= AFM lifter failures via the Melling Bulletin from last year. They make the collapsible lifters for 4 cylinder shut down. https://www.melling.com/wp-content/uploads/2018/03/Melling-tech-bulletin-on-GM-LS-Deactivation-Lifter-Issues-3.1.18-1.pdf Read what Melling says oil pressure is supposed to be.

I think you hold down the “Tow-Haul” button for 7 seconds to disable “Grade Braking” and stop the downshifting issue.

https://youtube.com/watch?v=cwAmoPHnxG8 Ground wire by the windshield pillar. Factory shrink wrap blocking a good connection.

They eliminated RPO codes in the glovebox so in a few years they can charge shops access to the “scannable” code. Data aint free.