Skip the auto shop - Our mechanics make house calls

Q: Brakes, transmission, starter, & catalytic converter replaced, but not fixed

asked by on

The brakes and transmission were replaced in my car. It also needed a new starter because the key would not come out of the ignition. So I took my car to the dealership to get these replaced. While there, the catalytic converter started making a popping noise. I felt like the ones working on the car were just guessing at the diagnosis because they didn’t fix the problem. I’ve been back several times, but I still need help. Could you please tell me what you think will solve these problems?

The exhaust would need to have been removed when the transmission was done and may have been installed back on incorrectly or is misaligned causing the popping noise. A popping noise is usually due to a leak in the exhaust connections. If you want to have this verified, a certified technician from YourMechanic can come to your car’s location to diagnose the noise and proceed with the appropriate repairs.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  • Home
  • Questions
  • Brakes, transmission, starter, & catalytic converter replaced, but not fixed

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: I installed new front air shock last night now I am getting a "cat fault" reading on dash display

Hooking the battery positive cable up first is actually recommended. then there is no chance of arcing your wrench against a metal part of the car. I always disconnect the ground cable first and re-connect it last. It's possible your...

Q: A/C not cooling in idle, only on high rpms

Hi there. This typically means that the fan itself has failed or there is a problem with the circuit. I usually start by checking for voltage supplied to the fan when the A/C is turned on. If there is voltage...

Q: Rough gear engagement

It sounds like your car may be low on transmission fluid or you may potentially have a faulty transmission control solenoid causing an erratic shifting into gear. As you may know, transmissions use hydraulic pressure created by the transmission fluid...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...