CK5
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ugh. problems getting the truck to run after putting my old engine back in -Timing? Valve lash??
- Thread starter scouthead
- Start date
post 106 from November started running like poop towards the end of the trip and all the way home?
well, it now sounds like a a pack of playing cards is fluttering around inside my muffler, and i developed a few exhaust leaks upstream from it. Not sure yet how much of those issues were caused by the muffler pugging up, but I'm pretty sure the muffler came apart internally, or the cat came apart and barfed into the muffler.
either way, ive driven it to work a few times like this, and the "stumble" or "miss" that the engine is experiencing seems to correspond to the rythem of the clack-pinging-ruffling sound in the muffler. As far as the engine performance is concerned, I'm not sure if muffler is the chicken or the egg. As of yesterday, the outer weld seam on the bottom/outer skin of the muffler has split as well, and exhaust is coming out of the shell. I intend to drill a few 1/2 inch holes in front of the muffler to see if it runs any different, and maybe also in front of the cat if there are no changes.
Family health issues and retardedly expensive EVERYTHING IN LIFE are preventing me from just running it down to the muffler shop to replace everything - gonna have to wait a while.
well, it now sounds like a a pack of playing cards is fluttering around inside my muffler, and i developed a few exhaust leaks upstream from it. Not sure yet how much of those issues were caused by the muffler pugging up, but I'm pretty sure the muffler came apart internally, or the cat came apart and barfed into the muffler.
either way, ive driven it to work a few times like this, and the "stumble" or "miss" that the engine is experiencing seems to correspond to the rythem of the clack-pinging-ruffling sound in the muffler. As far as the engine performance is concerned, I'm not sure if muffler is the chicken or the egg. As of yesterday, the outer weld seam on the bottom/outer skin of the muffler has split as well, and exhaust is coming out of the shell. I intend to drill a few 1/2 inch holes in front of the muffler to see if it runs any different, and maybe also in front of the cat if there are no changes.
Family health issues and retardedly expensive EVERYTHING IN LIFE are preventing me from just running it down to the muffler shop to replace everything - gonna have to wait a while.
Couple of ideas...sounds like fuel pressure is your problem now. Could be related to an exhaust leak, though, and the 02 sensor reading too much O2 in the exhaust and compensating. Or, you could have clogged the exhaust with your broken muffler/cat parts.
Have you tried hooking up to the ALDL port and watching the data stream when it's bucking? Might give you some insight. I have the cord to hook it to the computer, not sure where it is, but if you need one, I can probably find it and loan it to you....
Have you tried hooking up to the ALDL port and watching the data stream when it's bucking? Might give you some insight. I have the cord to hook it to the computer, not sure where it is, but if you need one, I can probably find it and loan it to you....
Just run it open and take the exhaust off, see what happens...
Sounds like a baffle has broken loose inside the muffler and wants to lay in the airflow path. I've seen it before. Sometimes you can bang on the muffler and hear the part rattling around. Not much choice but to replace the muffler. If you're really cheap and have time on your hands you could cut the muffler open and re-affix the culprit part and weld it back together. Or if it's the cat, open the piping and break/remove all the cat guts.
Did you forget he's in CA? The tree huggers will be protesting in front of his house if he does that!
Only at the next bi annual emissions inspection.
No post O2 so comfuser would never know.
Exhaust leaks in front of the O2 is a problem. Throw fuel mixture off and allow O2 sensors to cool off.
No post O2 so comfuser would never know.
Exhaust leaks in front of the O2 is a problem. Throw fuel mixture off and allow O2 sensors to cool off.
nice - thanks! I actually have a OBD1 to usb cord with the resistor to short terminals somewhere. Doubt there is a fuel pressure issue as its been measured several times recently... however, i have a stainless shrader to install as a permanent test port -will be doing that soon and triple check that nothing has changed.
yeah - Mary Nichols shows up in your bedroom while you are asleep if you do that here... he/she is the most powerful unelected and un-fire-able person in the US??? terrifying.
yes to the banging and rattling part though... lots and lots of rattling. something fairly good size is flopping around in there and blocking exhaust flow.
next chance for them to rupture my fuel tank with nitrogen pressure coming in 3 months! so yeah, I need to keep it compliant for the smog nazis
