Intake Mainfold Swap, NEED HELP right away
Intake Mainfold Swap, NEED HELP right away I just finished putting on a ls6 intake manifold on my car and now my car is insanely loud, backfires a lot, and it's not running right. I also did !air and !egr, and fixed a few small exhaust leaks. Any idea why this is happening?
Yeap, check all the vacuum tubes and tighten the intake down a bit more. I had same exact problems and after letting it run a few minutes and fixing above said problems it now runs smooth as before.
checked, thats not the problem. also why does my car sound like "it has open headers", as my dad describes it? I am not near the car right now, its at my dads shop but he said it's really really loud, i mean thats not a bad thing 
but is it suppose to be really loud after installing this?
but is it suppose to be really loud after installing this?
Originally Posted by hourang
sounds like you opend a few exhaust leaks, lol, you sure you capped the AIR EGR good?
as far as the open headers sound i dont think so, if the intake is leaking or has a vaccuum leak its a different sound. did you torque the intake down in the right pattern and right torque specs?
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Verdad Gallardo have another question, why does my car backfire like crazy? when you get on it and the RPM's are high, it sounds like a machine gun going off. theres soo much back pressure. And he says the car is insanely loud, he's gonna drive it home tonight and i'll hear it myself and but any ideas why?
Originally Posted by jrp
you did install the new ls6 coolant pipes and plugs right? and also removed the small clips on the knock sensor wires?
Only thing I can think of is the vacuum hose to the brake booster... When i did my swap I forgot to hook it back up and it made my car sound like open headers.... I dunno about exhaust leaks... pretty sure you didn't touch anything down there to make it just sound wide open... 
But like you said, you said everything's hooked up so sorry bro... good luck with it! 
But like you said, you said everything's hooked up so sorry bro... good luck with it!
Originally Posted by hourang
umm i dont think you can even bolt that thing down at all with that stuff in their could you?
Originally Posted by SidewayzOZ
My car sounded like it had a cam when the brake booster wasnt connected. My misfires stopped when I fixed my vacuum leak.