LT1 backfire?
Thread Starter
12 Second Club
iTrader: (7)
Joined: May 2009
Posts: 280
Likes: 0
From: Walton, Indiana
LT1 backfire? i have a 95 lt1 camaro m6 car. stock motor with tb and headers, full exhaust. when im driving it normally it wont do it, but on decel or at idle it pops very loud through the exhaust almost like a backfire. does anyone have any idea wtf is goin on with this thing. ive never heard of this before. im an ls1 guy but got an lt car on a deal and need some help. thanks
TECH Enthusiast
Joined: Sep 2008
Posts: 681
Likes: 0
From: Watertown, WI
You might have a burnt plugwire, because one of mine I need to replace because of this. When its really warm out and I start it up it will pop sparatically for like 30 seconds then goes away. Check them.
Exhaust leak as well possibly...pulling in air and popping in the exhaust right past the collector area. It is where mine does it...about under where the cat used to be. I think I have a slight leak though as I swear I hear that ticking somewhere under there but haven't been able to locate it. On decel and on/off throttle real quick there is some raw fuel that will make its way in there and ignite if there is enough heat and air to allow it to happen.
Reviving this thread! Just wanted to know quick if the exhaust leak would cause raw fuel getting down there? If so mind explaining how?
I have a leak where my manifold meets my Y-pipe and got a couple weeks before I get some headers.
I have a leak where my manifold meets my Y-pipe and got a couple weeks before I get some headers.
Trending Topics
So it could possibly be the opti not doing its spark thang, which would be me having a spark plug or multiple not firing and the reason for the unburnt fuel in my exhaust? Opti doesn't seem to be the problem, seems like all the cylinders are firing? I feel like it is just this exhaust leak causing the pop. But I have no explanation as to why unburnt fuel would be down there just because of a leak?
Just a kid trying to learn so cut me a break if this **** is common sense or something.. Doesn't seem so.
Thanks!
Just a kid trying to learn so cut me a break if this **** is common sense or something.. Doesn't seem so.
Thanks!
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
