Let's sift through every square inch of a 2013 Tahoe PPV

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Caddylack

Caddylack

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Probably my biggest overall concern is maintaining stability at high speeds.

Even in stock form, the PPV is a monster on the interstate. I figure the PPV springs are probably pretty well-engineered, and I don't want to sacrafice.

Ugh.
 

Marky Dissod

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Probably my biggest overall concern is maintaining stability at high speeds.
Even in stock form, the PPV is a monster on the interstate. I figure the PPV springs are probably pretty well-engineered, and I don't want to sacrifice.
Either they are progressive (beehive?), or typical fixed rate springs.
The shocks have as much to do with maintaining stability; they dampen undulations.
 
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Caddylack

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Either they are progressive (beehive?), or typical fixed rate springs.
The shocks have as much to do with maintaining stability; they dampen undulations.
I meant, like, they probably made extra sure to use the right spring specs. It's still just a coiled piece of metal, I get it.
 

Marky Dissod

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Then I think we need help from a guy like 91ss.
It'd be REALLY helpful to know a lot more about the pertinent details of GM springs.
 
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Caddylack

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SHIT!

The Challenger has been at the dealership, so I've been driving the Tahoe for a few days. I've been beating on it pretty good.

I just noticed I have really low oil pressure, like between 10-20 depending on situation, but never getting up to where it should be.

I popped the hood and the engine doesn't sound right. It's all clattery like a diesel.

Already assuming the AFM crap just fell apart.
 
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I’m still trying to figure out the best way to diagnose this situation.

It’s possible that I just park it and reclassify it as a project car.

I have too much other stuff to do right now, so if the engine is toast, it will be a minute until I tear it down.
 

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