I ordered a new cat-back system yesterday and will have it in by this
weekend. Hopefully that'll fix the problem. If not, I'll take it back to a
shop to have them check it out. Initially the dealer said I needed a new O2
sensor, but that was becuase they thought the threads were seized. They got
it out, but maybe they damaged it in the process...

Eric
99 TJ SE
"Tookie " <tookie_nospam@***.net> wrote in message
news:40bcb478.1262935796@news.east.***.net...
> Just for fun, have the muffler shop check the cat.
> If you have a bad O2 sensor, mixture will be off
> and cat will overheat and melt. Mine looked like
> someone ran a welding torch inside it, nothing but
> melted slag. And sensor never threw a code,
> bad thing is there is no good way to test them, my
> truck at the time, a V6 GMC, had four of them, at
> $75.00 each
> Tookie - Denham Springs, LA
> 88YJ, 4" lift, 33" TSLs, Lock-Rights
> PosiLock, 4.10s

 

I ordered a new cat-back system yesterday and will have it in by this
weekend. Hopefully that'll fix the problem. If not, I'll take it back to a
shop to have them check it out. Initially the dealer said I needed a new O2
sensor, but that was becuase they thought the threads were seized. They got
it out, but maybe they damaged it in the process...

Eric
99 TJ SE
"Tookie " <tookie_nospam@***.net> wrote in message
news:40bcb478.1262935796@news.east.***.net...
> Just for fun, have the muffler shop check the cat.
> If you have a bad O2 sensor, mixture will be off
> and cat will overheat and melt. Mine looked like
> someone ran a welding torch inside it, nothing but
> melted slag. And sensor never threw a code,
> bad thing is there is no good way to test them, my
> truck at the time, a V6 GMC, had four of them, at
> $75.00 each
> Tookie - Denham Springs, LA
> 88YJ, 4" lift, 33" TSLs, Lock-Rights
> PosiLock, 4.10s

 

I ordered a new cat-back system yesterday and will have it in by this
weekend. Hopefully that'll fix the problem. If not, I'll take it back to a
shop to have them check it out. Initially the dealer said I needed a new O2
sensor, but that was becuase they thought the threads were seized. They got
it out, but maybe they damaged it in the process...

Eric
99 TJ SE
"Tookie " <tookie_nospam@***.net> wrote in message
news:40bcb478.1262935796@news.east.***.net...
> Just for fun, have the muffler shop check the cat.
> If you have a bad O2 sensor, mixture will be off
> and cat will overheat and melt. Mine looked like
> someone ran a welding torch inside it, nothing but
> melted slag. And sensor never threw a code,
> bad thing is there is no good way to test them, my
> truck at the time, a V6 GMC, had four of them, at
> $75.00 each
> Tookie - Denham Springs, LA
> 88YJ, 4" lift, 33" TSLs, Lock-Rights
> PosiLock, 4.10s