Bought my Mazda protege today, it had a exhaust leak which I took right away to fix.after that it will not stay running

David Larkin

Asked by Nov 04, 2015 at 10:37 PM about the 2003 Mazda Protege

Question type: Maintenance & Repair

It ran great before the exhaust was fixed

3 Answers

Tom Harmon

It's due to excessive back pressure and the leak although noisy was preventing high back pressure from building up in the exhaust ..I suspect a partially blocked Catalytic converter or if the leak was after the cat then your muffler is damaged

1 out of 1 people think this is helpful.

So ... whomever fixed the leak didn't check out WHY it had a leak in the first place? If I did that to a customer, I'd be fired. Totally agree that the leak was there for a reason.... possibly plugged or collapsed matrix in the cat.

1 out of 1 people think this is helpful.
Tom Harmon

It's not the end of the world as far as repair costs go ... a new Cat is lots cheaper than it was years ago ,,, and ,,, when that's fixed ,,, you will have a nice running car

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