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Thread: weird noise when driving?
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10-12-2008, 12:25 AM #1
weird noise when driving?
hey guys got a quick question for you. Ok so when im driving my car and decide to punch it the car is suddenly kind of doggy and it makes a noise like a faint tick or knock i know its not an engine rod knocking. what is weird is that my dad had a siverado and i could notice that noise in his truck when i would drive that sometimes. to me it almost sounds like it could be a vaccume leak or maybe a bad coil pack. if anyone has had problems like this or anyone has any suggestions would you please let me know. i have had my 2000 camaro z28 for about a year and a half, noticed the sound a while ago but i really didn't pay much attention to it. thank you in advance.
--MIKE--
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10-13-2008, 03:21 PM #2
Most likely what your hearing is detonation. Computer is pulling timing, which is why it feel sluggish. Pretty common in LS1 world. Usually caused by a lean condition. Lean condition could be caused by any number of things... Header install without a tune, clogged injector(s), clogged fuel filter, bad fuel pump, failing cat, bad O2's, oil contamination through the PVC system... the list goes on.
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10-13-2008, 07:56 PM #3
thanks for the reply. so this is nothing major then? awesome so when i get home from the desert i will start with some of the things you have listed. if you have any other suggestions it would be much appreciated. thanks again.
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10-13-2008, 08:32 PM #4
what kinda gas do u use regular or premium cuse it might be the gas u use to if that is regular
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10-13-2008, 08:58 PM #5
the lady i bought it from said all she ran in it was regular, so thats what i did. after reading some other posts i hear that happends a lot with regular so when i get home i will run some premium in it and see what happends.
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10-14-2008, 08:14 AM #6
Pretty good chance thats causing the detonation. Didn't even think to type that, I assumed everyone ran premium in their LS1! The stock compression is 10.1:1 after all.
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10-14-2008, 08:16 AM #7
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10-14-2008, 08:36 AM #8
- Join Date
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Red- 1998 Camaro SS
Gm recommends 91 min. octane on all LSX engines in cars.
1998 Camaro SS Hard Coupe Bright Red #1593
Mods: Lots!!, still my daily driver except for winter
383rwhp 370rwft/lbs
1979 Corvette
Mods Lots!!, weekend cruiser
325rwhp and 320rwft/lbs
2007 Dodge Ram 1500 4x4 (Yes its got a HEMI)
Mods: Catback, BFI CAI, Winter daily driver
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10-14-2008, 08:36 AM #9
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Pewter- 1999 Camaro SS-M6 #1775
so could you run regular with 9.8 compression?
Im guessing no
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10-14-2008, 10:53 AM #10
- Join Date
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Red- 1998 Camaro SS
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10-14-2008, 09:31 PM #11
- Join Date
- Sep 2006
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- Canby, Oregon
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Pewter- 1999 Camaro SS-M6 #1775
cool, thanks
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