I have a 2004 chevrolet suburban with a 5.3L and 100,000 plus miles. After driving for a little bit the engine will lose power, run rough and die. Can wait about 5 to 10 mins before engine will start again. The code i get is P0430. I was told i needed to replace my y-pipe. Do u think this is right?

SOURCE: losing power

Your battery is getting empty.

SOURCE: 98 S-10 2.2l runs well until 50 miles. Slow from 70mpg to 30 mpgs

see if there is water in you anti or oil if there is it will be a white color but it sounds like a cracked head

SOURCE: 2000 s10 Blazer dies very 3-6 weeks for no reason

i would check your ignition system. you would need a meter for this but look for broke or loose connections. if it was a fuel problem i dont think it would just start up after 20 minutes. or you might try your ignition switch. if its shorting or something then ya well it would cut your engine off real quick

SOURCE: 1998 chevy K1500 timing runs ok for 10 miles then loses all pwr

1-timing on truck is ajusted by ecm,when u moved it u cause cam sensor code because it detected timing was off! 2-o2 sensors has the role of detecting air to fuel ratio coming out of exhaust,sends signal to ecm wich collects data from other sensors from that sets timing for best performance,if ecm detects something wrong in system data it will give engine code,that code will point at problem area,in your case o2 sensors probably detected lean fuel ratio that points to fuel system,blocked fuel filter or fuel pump faillure,elect,circuit damage,hope it helped!

SOURCE: 1999 Suburban, 5.7L loss of power then, it seems

Replace spark plug wires and plugs. Sometimes old wires will arc to the engine block, causing missfire. Check the wires at night with lights off and engine running, if they're bad, you'll defenitely see them arcing to the engine. if they are...replace.