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1999 CAMARO SS back fires

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Old 10-27-2011, 08:01 PM
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Default 1999 CAMARO SS back fires

just wondering if its normal for my 1999 camaro ss to backfire when its cold
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Old 10-27-2011, 08:03 PM
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no, it probably needs a tuneup.
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Old 10-27-2011, 08:05 PM
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its only when it cold though just bought it 2 weeks ago and stored it
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Old 10-27-2011, 08:11 PM
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any codes?
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Old 10-27-2011, 08:13 PM
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no codes
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Old 10-27-2011, 08:26 PM
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plugs might be worn out. hard to say.
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Old 10-27-2011, 08:31 PM
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what kind of exhaust set up do you have? Also do you still have your EGR/AIR hooked up?

When i bought my camaro (stock) it did not back fire at all
After installing longtube headers and True Duals, it backed fired some.
Now that i removed EGR/AIR (after LS6 intake swap), no back firing like before. only on occasion.

Thats my experiance with "backfiring" atleast.
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Old 10-27-2011, 08:43 PM
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i think its hooked up not sure but i will get it checked out in spring thanks for your imput
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Old 10-27-2011, 08:47 PM
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at what mileage do they recommend tune up spark plug change?
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Old 10-27-2011, 09:01 PM
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If you just purchAsed the car I would go ahead and change out plugs, oil, trany, and re end. Maybe radiator flush if need to be. You never know when the last time they been changed. I wOuld put synthetic oil, I use castrol synthetic than change it out every 3000miles at the most.
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Old 10-27-2011, 09:05 PM
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Originally Posted by D14HUGGER.ORANGE View Post
If you just purchAsed the car I would go ahead and change out plugs, oil, trany, and re end. Maybe radiator flush if need to be. You never know when the last time they been changed. I wOuld put synthetic oil, I use castrol synthetic than change it out every 3000miles at the most.
isnt synthetic good for at least 5k?

i think ive heard its from 6k-8k
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Old 10-27-2011, 09:46 PM
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Yeah it is. Personally I dont like running my motor past 3k without an oil change because of the cam work and mods, my ls1 is a thirsty son-of-abit*h...it keeps it running healthy
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Old 10-28-2011, 07:54 AM
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What brand spark plug is recommened?
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Old 10-28-2011, 09:12 AM
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Almost like clockwork my '02 SS backfires a lot between my first gear shift of the day, then almost never again unless I ride down a particular gear from high rpm for a while then disengage the clutch. I only hear it (maybe even only get it at all) when the e-cutout is open though...
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