so youre saying sounds like a cat ?wouldnt it run better if the cats were blown out rather than clogged?does this hve 2 cats or just one on the original exhaust?its stock ,i really havent looked at them.yes its stock so it has the original converter 160k on it.should i just cut it off and see,or would i be better off pulling the manifolds off the block to see?
mods:2004 sierra ext sb,20s ,big brake kit w,hawk pads,air bagged,2006 6.0 lq4 swap,vortec supercharged10psi, air to water intercooled w/ dual electric fans on it ,snow meth injection kit,60lbers, e-fans ,big radiator swap ,cam 218 /222 548/550 comp .hardened prs .1.85 comp roller rockers ,guideplates ,crane double springs,trans 4l65e built .pacesetter l/ts true duals w/x pipe and magnaflows,14 bolt rearend swap ,3.73s,aroemotive fuel pump system w/elec.fuel controller and bypass regulator a/n fittings, taylor 10.5s interceptor gauge,aem w/b a/f ,autometer boost/vac NELSON 93 OCTANE TUNED .
What is the truck described in your sig? No, pull the pipes off the manifolds and retry. Yes, it's likely you have a plugged cat at 160K. It would run better with hollowed cats. It has two, one for each side. The LH side (driver's side) is more common to stop up. Why? Longer piping? I don't know.
The truck in my sig is mine ,this is the wifeys everyday driver (03 escalade),and im hearin it too,lol.she took a 300 mile drive and as soon as she got home and pulled in the driveway it started this running like crap,b4 that it really had no issues and has ran well.thanks.thats exactly when it happened after her trip.
Last edited by Ramsey; 10-01-2009 at 11:22 PM.
mods:2004 sierra ext sb,20s ,big brake kit w,hawk pads,air bagged,2006 6.0 lq4 swap,vortec supercharged10psi, air to water intercooled w/ dual electric fans on it ,snow meth injection kit,60lbers, e-fans ,big radiator swap ,cam 218 /222 548/550 comp .hardened prs .1.85 comp roller rockers ,guideplates ,crane double springs,trans 4l65e built .pacesetter l/ts true duals w/x pipe and magnaflows,14 bolt rearend swap ,3.73s,aroemotive fuel pump system w/elec.fuel controller and bypass regulator a/n fittings, taylor 10.5s interceptor gauge,aem w/b a/f ,autometer boost/vac NELSON 93 OCTANE TUNED .
Could it be nothing more than a bad tank of gas?
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
? idk could it
mods:2004 sierra ext sb,20s ,big brake kit w,hawk pads,air bagged,2006 6.0 lq4 swap,vortec supercharged10psi, air to water intercooled w/ dual electric fans on it ,snow meth injection kit,60lbers, e-fans ,big radiator swap ,cam 218 /222 548/550 comp .hardened prs .1.85 comp roller rockers ,guideplates ,crane double springs,trans 4l65e built .pacesetter l/ts true duals w/x pipe and magnaflows,14 bolt rearend swap ,3.73s,aroemotive fuel pump system w/elec.fuel controller and bypass regulator a/n fittings, taylor 10.5s interceptor gauge,aem w/b a/f ,autometer boost/vac NELSON 93 OCTANE TUNED .
prolly not since it is all on one side of the except for the #7 misfire. i would try taking the exhaust off the pass side and see what happens like gas said.
'00 Silverado, '98 Trans Am, and a couple other toys.
Posting Permissions
Reply With Quote