Which portion(s) of the exhaust system should I focus on during a baseline? Are there any parts that are definitely replace after 150k miles? Or things that should be done preventatively?
So far I've replaced the PCV Valve and top two ventilation hoses which were both hard/cracked. I'll be ordering the charcoal canister suggested in other threads and hope that it will help some with the smell
A few months ago, my EGR Vacuum Modulator blew/melted on the way back from a long drive. Since replacing, it I haven't had any issues (but haven't driven over 30 minutes either) but I'm wondering what caused it. I also know there is a small leak between the two cats. O2 sensors were replaced 4y (12k miles ago). I believe I have an after-market muffler that is louder than my liking. Many of the small hoses off the intake manifold are hard and I want to replace them. And at some point I want to remove/clean the intake and maybe do a VSV bypass or something though all my EHR-related tests seemed fine.
How do I know if the downpipes should be replaced? Is the aftermarket replacement even good?
On the cats, how would you approach them - get them tested somehow and try to put back together with a new gasket? I'm not sure how to make the decision on that vs replacing with single aftermarket part.
Should I replace everything from the cat-back? Is re-routing over the frame worth it? I hesitate to stray from OEM but also know I want to put a bigger spare down there.
As you can tell I'm trying to figure a lot out so any threads, answers, or advice is welcome. I want to catch up on maintenance and do anything worth doing preventatively, but without going crazy so I can actually drive the thing.
So far I've replaced the PCV Valve and top two ventilation hoses which were both hard/cracked. I'll be ordering the charcoal canister suggested in other threads and hope that it will help some with the smell
A few months ago, my EGR Vacuum Modulator blew/melted on the way back from a long drive. Since replacing, it I haven't had any issues (but haven't driven over 30 minutes either) but I'm wondering what caused it. I also know there is a small leak between the two cats. O2 sensors were replaced 4y (12k miles ago). I believe I have an after-market muffler that is louder than my liking. Many of the small hoses off the intake manifold are hard and I want to replace them. And at some point I want to remove/clean the intake and maybe do a VSV bypass or something though all my EHR-related tests seemed fine.
How do I know if the downpipes should be replaced? Is the aftermarket replacement even good?
On the cats, how would you approach them - get them tested somehow and try to put back together with a new gasket? I'm not sure how to make the decision on that vs replacing with single aftermarket part.
Should I replace everything from the cat-back? Is re-routing over the frame worth it? I hesitate to stray from OEM but also know I want to put a bigger spare down there.
As you can tell I'm trying to figure a lot out so any threads, answers, or advice is welcome. I want to catch up on maintenance and do anything worth doing preventatively, but without going crazy so I can actually drive the thing.