Car Questions
RepairPal is your advocate for car care advice and guidance

Runs rough

(1991 Saab 900)
in Maryville, TN on November 01, 2010
when i start the car it acts cold,if i reset the check engine light it runs worse i have changed the fuel filter,o2 sensor and cleaned the map sensor the plugs are good,not sure i think its vacuum or sensor problem,it seems to want to die after you put in gear and has no power could it be the catalytic converter?thanks
Displaying 1 answers & 0 comments
Popular Answer
on November 01, 2010
I'd say, look for an intake air leak.
I suppose it could be the catalytic converter, it could be getting plugged up. If so, you could possibly be able to tell by putting your hand up to the exhaust outlet pipe and feel a steady flow instead of pulsing exhaust gasses.
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide. Learn more
Didn't find what you were looking for?