Supercharged to Stock Mojave

[cwalsh07]

I bought a used jeep from a dealership and had it shipped without seeing it. Once it arrived I noticed it had been supercharged previously by the magnuson stickers by the gas cap and computer plug. The jeep runs great but I’m assuming my factory warranty is voided by the fact it has probably been flashed?

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[kevman65]

Not if they did the PCM right.

 

[ShadowsPapa]

And why I don't buy sight-unseen.........

I'd remove all traces.

 

[kevman65]

The smart way (for the user) is to buy a second PCM, have it set up to their VIN, and then have whomever does the tuning use that PCM and keep original PCM totally stock.
That way they can switch if and when necessary. Is this kosher? No, but it's how it's done.

If the PCM in your JT has or had the tuning in it, they will know when they scan it.

I had an Explorer Sport that had Livernois tuning done to it, and I had two PCM's, one stock, one with the performance tunes.

 

[cmb396]

So is it supercharged, or was supercharged and removed?

 

[cwalsh07]

So is it supercharged, or was supercharged and removed?

It looks like the previous owner removed the supercharger before trading it in to the dealership I bought it from

 

[cmb396]

It looks like the previous owner removed the supercharger before trading it in to the dealership I bought it from

Gotcha. See if the dealer will give you previous owner contact, and call them up to ask them. If they won't maybe a carfax and some googling will find the previous owner.

 

[ShadowsPapa]

The smart way (for the user) is to buy a second PCM, have it set up to their VIN, and then have whomever does the tuning use that PCM and keep original PCM totally stock.
That way they can switch if and when necessary. Is this kosher? No, but it's how it's done.

Why isn't it kosher? Heck, that's how I do all major mods to anything. I keep the stock parts "just in case". If things go south, I can always revert. Big or small, I keep the original parts.
Maybe that's why I have two buildings full of car and Jeep parts LOL Fenders, grills, engines, wiring harnesses, manifolds, whatever.
SCs are not cheap or simple propositions, to not be ready with a plan B is just, IMO, dumb.
What if the project fails for any reason? If you have used your original parts now you are stuck trying to find replacements.
Like my wife said about my cars "maybe you had better start finding the parts now before you need them". Smart woman.

 

[kevman65]

Why isn't it kosher? Heck, that's how I do all major mods to anything. I keep the stock parts "just in case". If things go south, I can always revert. Big or small, I keep the original parts.
Maybe that's why I have two buildings full of car and Jeep parts LOL Fenders, grills, engines, wiring harnesses, manifolds, whatever.
SCs are not cheap or simple propositions, to not be ready with a plan B is just, IMO, dumb.
What if the project fails for any reason? If you have used your original parts now you are stuck trying to find replacements.
Like my wife said about my cars "maybe you had better start finding the parts now before you need them". Smart woman.

It's not kosher if one is using the second PCM to keep the manufacturer from knowing there was a power adder involved. If the valves and springs get trashed from power adder and power adder and PCM are removed and stock set up put back on and taken in for warranty, that constitutes fraud.

 

[2TH MVR]

I bought a used jeep from a dealership and had it shipped without seeing it. Once it arrived I noticed it had been supercharged previously by the magnuson stickers by the gas cap and computer plug. The jeep runs great but I’m assuming my factory warranty is voided by the fact it has probably been flashed?

Is it a Jeep dealership? I would discuss this issue with them. You purchased a vehicle that normally would still be under warranty. It should have been disclosed to you that the vehicle was modified and therefore has limited waranty.

If some shady used car dealership. You might be sol.

 

[ShadowsPapa]

It's not kosher if one is using the second PCM to keep the manufacturer from knowing there was a power adder involved. If the valves and springs get trashed from power adder and power adder and PCM are removed and stock set up put back on and taken in for warranty, that constitutes fraud.

Ah, from that perspective. OK, yeah, from that point of view, yeah. But for me - I do it for MY OWN REASONS, not to defraud anyone. I want a back-out plan.
Working for government when you propose any change, your proposed change MUST be accompanied with a back-out plan. Doesn't matter what that change is - can you quickly back out of that change and put things back.

I am the sort that would be up-front. I had never even thought about doing it so no one would know. I was looking at it from "man, if this goes south and I need my truck, I want that back-out plan.
I had nothing so drastic on my 2020 - but I told the dealer who got that truck EVERYTHING. I even took the guy out and walked around the truck and showed him where I had things and where I had removed things and gave him a print-out of all changes I made to the BCM settings.

Valves and springs would be fine, there's no change to them - my concern is with rods, bearings, crank shaft, perhaps pistons. And if the pressures were too high, the block.
So my comment - I'd never buy not being able to look it over, etc. - I'd not want a truck that has a SC and unknown history - that thing could have a bottom end ready to go south. The stresses on the lower end would remain hidden until they were no longer hidden.
I'm not suggesting it WOULD blow or have trouble - but who knows how it was driven with the SC on it and why it was removed.

 

[Escape.idiocracy]

It's not kosher if one is using the second PCM to keep the manufacturer from knowing there was a power adder involved. If the valves and springs get trashed from power adder and power adder and PCM are removed and stock set up put back on and taken in for warranty, that constitutes fraud.

Man, I wish everyone in the world was as honest as you….

 

[4-Play]

Buying any vehicle, sight unseen, seems like an unnecessary risk to me. Keep records! A friend bought a truck with just over 240,000 miles on it from the original owner. He had a logbook of everything he ever did to the truck, including gas fill-ups. At the 239,000 mile oil change there was a note that said “distance to the moon=238,900 miles, on the way back now, awaiting re-entry.”

 

[cwalsh07]

Is it a Jeep dealership? I would discuss this issue with them. You purchased a vehicle that normally would still be under warranty. It should have been disclosed to you that the vehicle was modified and therefore has limited waranty.

If some shady used car dealership. You might be sol.

It was a Ford Dealership, I’ll have to reach out to them. When purchasing the vehicle they told me it was still under factory bumper to bumper and power train warranty

 

[kevman65]

Man, I wish everyone in the world was as honest as you….

If they were, you wouldn't need to worry about buying a used vehicle.

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