rgeier11
Well-known member
I have suspected the catalytic converter on my 209k mile Galant has finally taken a dump. I'd like to get some insight before I sawzall it off and replace it with a straight pipe. The factory exhaust is completely rusted at the flanges, hence the sawzall.
THE SYMPTOMS:
When I first start up and drive the car it runs great with minimal hesitation during spool up. After driving the car for 15mins or so it will stumble/stay flat/no power. Sometimes while hesitating the car will blast off and accelerate hard.
If I stop the car and let it cool for a little bit and hop back in, it will run great.
THE SYMPTOMS:
When I first start up and drive the car it runs great with minimal hesitation during spool up. After driving the car for 15mins or so it will stumble/stay flat/no power. Sometimes while hesitating the car will blast off and accelerate hard.
If I stop the car and let it cool for a little bit and hop back in, it will run great.