94 Viper right sidepipe overheating and melting sill plate under door. Any ideas as to why this is occurring

[vklein]

94 Viper right sidepipe overheating and melting sill plate under door. Any ideas as to why this is occurring

 

[BoondocSaint]

If it's only on the one side, I'd look towards a clogged cat or bad O2 sensor.

 

[daveg]

I agree, sounds like a clogged cat.

 

[Old School]

Common cause of a cat overheating is a faulty fuel injector dumping too much fuel.

 

[99RT10GTS]

Cut out both cats NOW!!! Get your injectors pulled, checked and cleaned

 

[TEALLIFE]

replace the cats, its time anyway and new ones perform better.

replace 02s while youre there if you havent.

 

[Sedonut]

Catalytic converter, too many people never let their cars warm up, driving to cars and coffee two miles away is not enough. Mine did the same thing before I fixed it.

 

[vprtech]

Typically an overheating cat is caused by an excessive amount of unburnt fuel getting into it, this could be caused by a stuck fuel injector or a misfire on one or more cylinders. In my experience, the most common cause of a misfire on a Gen1 Viper is faulty plug wires, if a spark plug boot fails, and the spark arks through the boot, causing a misfire.