I had to get my car towed to the dealer. I found Friday night that my car when pushed would do 20 psi instead of the 15 psi I was getting with stage 2. When it would go over 15 psi I would hear a whistle. the more I drove it the lower the presser had to be to make the whistle and the less power I had. I'm thinking it to be the cat but I don't know if there is anything else wrong now or not. My car has 37,320 miles on it. Figures...

 

cat, me boy

 

I was pretty sure about that I just have to wait for the dealer to call and let me know what they think.

 

anything to do with the emissions system is 8 years 80K miles. So if it is the cat, you're clear.

 

proly your cat mine went after 29k

 

They started saying it is a bad engine and started doing pressure checks. Now they are about done with the tests and think the engine is ok. Now they are saying they think the supercharger is shot. I don't see how excessive boost shows the supercharger is shot. lol I just want to know who to kick when they finally say it is the cat. I told them that is what I thought it was. I guess since I'm not a GM tech I don't know anything.

 

identical story...cat it is

 

lmao dealers LOVE to say that the motor is blown. lmfao i hear it ALLLLLL the time

 

Well they finally said they are ordering the cat. If it was not illegal I would bust a knee cap.

 

oh god its true. dealers are the same everywhere. even when you tell them the problem and the solution they still got to scratch their heads for awhile.

 

The engine can breath again. lol Put almost 300 miles on the new cat over the weekend.

 

okay i know im gonna get kicked in the teeth for this question. by cat u guys mean the catalytic converter yes? (i know im a friggen noob)

 

yes they mean catalytic converter

 

i thought so. thnx

 

The reason they were hesitant to replace the cat on a whim is because it's a very expensive part, the stock dp is like 800-900 bucks.

 

Working at a place where we see lightly used vehicles (off the GMAC auctions), we have one in just today that had the same issue. A Grand Am that was only doing about 70 km/hr tops and it turned out to be a catalytic converter. Since on the emissions warranty, it didn't cost us the $700.