Quote:
Originally Posted by 37drift
How do you guys know that the gaskets are blowing out? CEL? Louder sound? Car acting funny?
Just curious.
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This is my list on how I could tell the gaskets were blown:
- Strange, raspy, rattling, whoosh exhaust notes directly under the driver/passenger. I have the OEM exhaust so it is really evident inside the car.
- More pronounced smell of fuel/exhaust than normally with test pipes
- SES - P2A03 and P0171
- Poor fuel mileage, I checked on the 2 days I had a good seal and was getting at least 3 MPG better. I think this is what caused the P0171 to make the O2 sensor think I was running lean.
- If you can get under the car, you can visually see the area of the leak (a very dark, black area) between the flanges. I could see a spot that appeared to be missing gasket material but it was actually burned all the way through.
My installer suggested this:
Add an exhaust gasket sealant in additional to new gaskets. Hopefully, this will do. If not, we can buy a sheet of metal exhaust gasket and get it cut out via WATERJET.
I am probably going to go the metal exhaust gasket fabrication route because I am guessing it will be the most durable in the long run.