1999 Buick Century "crazy cats" Questions

...a couple weeks. on the way home it t ran hot, when I tried to start it again, the lights went crazy and won't start. I tried it again the other day and I could open the trunk with automation

I have a 2002 dodge ram 4.7 this may sound crazy but will cutting the catalytic converters off my truck mess with my o2 sensors? Or will there not be enough back pressure The problem would not be back

...shut it off, and when I start it again, it'll chug and the tranny will slip and grab like crazy!! What's up? Clogged cat perhaps? Not clogged cat. Probably clogged fuel filter and dirty

...said converter the other said sensor. Can someone tell me which you think it is?? its driving me crazy wanna fix it but cant do both at once. thanks One quick way to rule out the catalytic ...

...but can feel it. Does not do it all the time but while the problem is going on the RPM gauge goes crazy. Any ideas? cat. converter may be

...v6. replaced both rear cats. no change. could it be a vacuum leak or is it the o2 sensor? Scan time.I would look at temp sender and for a vacuum leak.Sounds crazy but both can cause a rich

2000 Z71, ERRATIC MISFIRE, NO LIGHTS, NO CODES, VERY LITTLE POWER, ENGINE SHAKES LIKE CRAZY, GUESS ITS BECAUSE OF MISFIRE, NEW PLUGS, NEW WIRES, NOT A PLUGGED CAT, ANY IDEAS? if no codes, it just ...

...year including both cats. Check engine light goes on then clears then goes back on..Any suggestions? driving me crazy. sounds like a sensor is loose maybe not have good contacts? Junks I know mine ...

...my cat back exhuast i bought a new exhaust but all of my friends that have garages are busy like crazy at their shops so i can't get help from a hydraulic lift. so i was wondering if ramps would

...touring had crack in overflow tank and ran hot(not in the red)? So replaced it and every since it's crazy.its throwing codes P0430,P0622,P2299,B212C,P0406?what is happening with this car? P0430 means ...