What Mods void warranty?

[04CompG]

Hello everyone. I purchased my 04compg a few months back. Since it only had 17k miles on it it was very cheap to extend my warranty for 3 years or 52,000miles. Since I have the worst luck with cars I went ahead and bought that warranty. Its the GM Major Guard warranty.

Well now that I'm getting used to this car and making sure its running clean (just changed the s/c oil, switched to synthetic fluid, cleaning maf sensor and throttle body, dropped in a quart of lucas oil stabilizer the oil change before I switched to sythetic, will have a coolant flush done and fuel filter replaced before i start modding) I want to start doing a little engine modding. What I have so far is GMPP trailing arms, MSP upper engine mounts, 180tstat and K&n drop-in. I know my current minor mods won't void the warranty.

What I really want to do is PCM (Overkill Motorsports!!), 2.5" DP w/ hi flo cat, Wizair intake and different spark plugs and wires. These mods will probably be about good for me. I rarely WOT the car, im too paranoid about **** breaking. I think if I take car of the car my future mods that I have planned won't put too much stress on the vehicle.

Now if I have trouble with my car I can just swap out the PCM's and bring it in, but will the DP void my warranty, if they even notice it? I'm assuming the spark plug wires and Wizair will not void anything. Thanks for the help. If I asked this question on ClubGP right now I probably would get ZERO responses.

-Patrick

[IndeedSS]

They dealership would have a hard time denying warranty with the mods you listed. I would keep your stock PCM to swap out before taking your car in for service. They cannot read what tune you have, but they sure can write a stock file over your Overkill one. That would be a bad thing.

Basically if something goes wrong with your car, in order to deny warranty, they would have to prove your mods caused the issue...that would be very hard in most cases, especially lightly modded.

Me I would swap PCM and throw the stock airbox in for warranty work. I no longer do this, as my dealership can see the headers, hear the lope of the cam, and there is always a few other visuals to be spotted.

[19SE92]

When you get the coolant flush DO NOT GET DEX COOL re filled.. It will eat the metal inside the head. and cause build up that will block coolant passages. Go green on the coolant flush and fill.

[archemedes]

Magnuson-Moss Warranty Act - Wikipedia, the free encyclopedia
Magna Charger manufacturers intercooled supercharging systems for late model GM and Ford cars, trucks and SUVs utilizing OEM quality Eaton hybrid superchargers.
couple sites to check out

[SyntheticShield]

When you get the coolant flush DO NOT GET DEX COOL re filled.. It will eat the metal inside the head.

I want proof of this part of your statement. Show me a documented case in which Dex Cool was DIRECTLY responsible for eroding the metal in a head to such a degree.

Does it not bother you at all that you are the only one out of nearly 750 members on this site that has a NEGATIVE user reputation? You know why that is? Because of silly misinformation like you posted. User reputation is a review of your peers, other members in this community, of their opinion of the information you are posting. Yours is negative. Are you putting two and two together here or should I break out the counting blocks?

[19SE92]

HAHAHAHA your funny or you've been kept in the dark about dex cool there is a class action suite going against gm cause of it. everyone will tell you the same info. And if you don't like what i post which is the truth then don't read it its that simple

[SyntheticShield]

I know all about the class action suit, and its about a gelling issue with Dex-Cool, not it eating the metal of the heads.

Show me the proof.

[IndeedSS]

HAHAHAHA your funny or you've been kept in the dark about dex cool there is a class action suite going against gm cause of it. everyone will tell you the same info. And if you don't like what i post which is the truth then don't read it its that simple

We have, and have had for years, GP and Impalas as fleet vehicles. I know of no Dexcool issues. Sure I've seen the pictures of some on the vehicles with supposedly issues caused by Dex, but I bet most are related to not having a healthy engine in the first place or poor maintenance practices.

It is interesting how long this "class action" lawsuit has been talked about.

fwiw my daughters 02 Cavi has almost 80K on it and the dex still looks like a fresh pitcher of orange koolaid.

[SyntheticShield]

Well Im one that had issues from a perfectly maintained GP, as I had the history on it. I dont argue the gelling issue, as that is exactly what happened to mine. Further more, it eventually hardened that gel into a sand like substance and proceeded to deposit it like cement into my radiator.

A new radiator, a coolant filter and a switch to green coolant and Ive had no issues since. Ive particularly had no gelling issues and my coolant filter remains clean for months now rather than days before the coolant switch. I put the filter on prior to the switch in the hopes I could save my radiator and stop the sandy crap before it got there but alas it was just a wee too late. But I literally had to clean out the filter about every other day leading up to the destruction of the radiator. Since then, I have to clean it maybe every other month or so if that.

But it has not ate through my heads and in all my reading about the Dex Cool issue I have yet to see one case of that.

[IndeedSS]

Very few have had those kinds of problems though. I'm sure it can happen but the odds seem pretty small.

[SyntheticShield]

I dunno, you may be right, but I would be difficult to convince with the number of reports out there and the class action suit that is in progress. Its there, I even had documents on it at one time, but with all such things it will probably be a while before anything comes of it.

[IndeedSS]

didnt this thing start in 96?

[SyntheticShield]

I dont know the exact answer to that.

[04CompG]

Yea some people at over at ClubGP are against dex-cool. I think I will switch it out just for the peace of mind. What do you guys think about replacing the dexcool with some of this:

Evans Cooling Systems, Inc. High Performance Engine Cooling and Power Production.

[SyntheticShield]

Ive have ran across them before and quite frankly if what they claim is true it would be a great product for supercharged engines.

Its a little pricey but not so much that it might not be worth it. Id be tempted to try it, but I sure would want to be sure I get everything out of the system before installing it.

My questions to them would be what is the life of the coolant and can it be mixed, just in case you dont get everything out. If you decide to use it, let me know, Id be interested in your experience with it.

[IndeedSS]

Yea some people at over at ClubGP are against dex-cool. I think I will switch it out just for the peace of mind. What do you guys think about replacing the dexcool with some of this:

Evans Cooling Systems, Inc. High Performance Engine Cooling and Power Production.

I think I've seen that somewhere before. Very interesting find.

fwiw I bought my car with 9K miles on it from a dealer. As part of the purchase agreement I had them flush the Dex, install green and put it writing that the green coolant would NOT void the warranty. I did this back when I read that stuff over at Clubgp too. I would not likely switch from Dex if I had to do it over. Not that the green is bad or anything, I just think my reason for switching was flawed.

[Toasty]

HAHAHAHA your funny or you've been kept in the dark about dex cool there is a class action suite going against gm cause of it. everyone will tell you the same info. And if you don't like what i post which is the truth then don't read it its that simple

That's a funny way to talk to an Administrator of the forum Especially when your're dead wrong.

Here's the items/vehicles addressed in the class action suit tentative settlement:

GM automobile owners and lessees will have the option to be included in this class action settlement if they incurred out-of-pocket expenses for any of the following repairs:
1. A replacement of the nylon/silicone lower intake manifold gasket, made within the earlier of 7 years or 150,000 miles of the date of initial delivery for 1995-2003.5 Model Year vehicles with 3.1-liter V6 and 3.4-liter V6 engines that were originally equipped with Dex-Cool coolant.
2. A coolant sealability repair (including, but not limited to, throttle body gasket, upper intake manifold gasket, lower intake manifold gasket, etc.), made within the earlier of 7 years or 150,000 miles of the date of initial delivery for 1995 - 2004 model year 3.8-liter V6 engines (RPO L36) that were originally equipped with Dex-Cool coolant.
3. A Dex-Cool sludge repair, made within the earlier of 7 years or 150,000 miles for 1995 - 2000 model year S/T light trucks and sport utility vehicles with 4.3-liter V6 engines that were originally equipped with Dex-Cool coolant.

No mention of eating Heads. nowhere.

here's the link that i pulled this from:

GM Dex-Cool Lawsuit - Intake Manifold Gasket Corrosion - Girard Gibbs LLP Attorneys

[Toasty]

interesting article here:

MACS 2001: GM and Texaco “Bare All” about DEX-COOL®

[SyntheticShield]

Thank you Mr. Toasty.

[Reptile]

This just supports what I've said for years that Dex is not a bad product. The problem is the crap that people put in their coolant systems to fix leaks, and not maintaining the system. If you take care of things, it will survive. Don't patch a problem...FIX IT.