[MBZ] Kaleb's glowing exhaust

Hi, Kaleb. To check for a plugged cat, attach a vacuum gauge to the intake manifold vacuum port, then run the RPMs up with the car in park. If the vacuum drops to almost 0, the converter's plugged. Next thing to look for would be an overly rich mixture. Unburned fuel in the exhaust stream

Re: [MBZ] Kaleb's glowing exhaust

thanks Brian Smyla wrote: Hi, Kaleb. To check for a plugged cat, attach a vacuum gauge to the intake manifold vacuum port, then run the RPMs up with the car in park. If the vacuum drops to almost 0, the converter's plugged. Next thing to look for would be an overly rich mixture.