Anyone Had This Problem

[DPercival]

Well, I thought I had spun a bearing or broke my motor. Well it turns out to be a blown converter. You want to talk about relieved.... 4700 vs 1100.. big difference and I would have had to dig further in the til than I wanted to to get it fixed.

Motor, 2004 5.3L 106.000 miles. Never used a drop of oil nor ever had any problems with this motor. I was wondering if anyone else had ever had this issue and is it common for this motor to have this issue?

 

Thanks.........

[Z'06]

Save your money and get some aftermarket cats such as Magnaflow.

[700 sportsman]

Plugged converters are fairly common, its not a big deal, but I agree, some nice Stainless Steel magnaflows would be a nice replacement

[DPercival]

Plugged converters are fairly common, its not a big deal, but I agree, some nice Stainless Steel magnaflows would be a nice replacement

 

 

Mine didn't plug, they blew apart and were rattling like the engine was going to fall apart. After getting it fixed, I think I am getting better fuel mileage now and got off that ethanol gas!

[6.0max]

happend to me on my 2002 sierra 5.3 it felt like the motor was going to seize it didnt had any power...anyway brought it the the garage and yep pluged converters...they were covered by waranty till 125 000 kilometers I had 130....no luck 1200$ out of the bank

[Nytemare]

happend to me on my 2002 sierra 5.3 it felt like the motor was going to seize it didnt had any power...anyway brought it the the garage and yep pluged converters...they were covered by waranty till 125 000 kilometers I had 130....no luck 1200$ out of the bank

God love Vancouver Island...if that happened to me it would just be 2 pieces of straight pipe and 2 O2 eliminators for the after cat sensors.