Q: Problems accelerating, check engine light on, possibly bad catalytic converter? You

asked by on

My truck is having problems accelerating properly and has a bit of a rough engine idle. My check engine light is on. Took it to a autoshop and replaced o2 sensors, spark plugs, wires to the spark plugs, checked and cleaned mass air flow sensor, checked vacuum pressure. I am still coming up with a misfire on 4 cylinders on only the driver side of the engine. The auto place is telling me it could be a clogged catalytic converter on the drivers side(since there are 2 converters that come into a y). What would be your opinion? Does his sound like a clogged cat to you?

My car has 125000 miles.
My car has an automatic transmission.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Problems accelerating, check engine light on, possibly bad catalytic converter? You

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: When turning left from a stop vehicle binds and stability control warning light flashes

Hello, Your car is equipped with wheel speed sensors at each of the four wheels which monitor wheel speed while relaying this information constantly to the ABS and traction control system which are controlled by the car's ECU. When the...

Q: 2008 GMC Acadia Digital Display Issue

Claimed by Kevin Gainer

Q: Q: Air not flowing out of front vents.

If the blower motor is not turning, the cause is identified during a failed heater diagnostic. Blower motors failures are due to faults in the wiring, fuse, relay, control switch, resistor block, if so equipped, and of course the blower...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...