*wats that noise?!?! :(
Thread Starter
Staging Lane
Joined: Aug 2004
Posts: 55
Likes: 0
From: Troy,MI
*wats that noise?!?! :( okay, heres my problem. lets say im cruising at like 40 50 60 mph. if i give the car alittle gas to pick up, it sounds like somthing is rattling in the engine, almost like little metal ***** hitting eachother. i have no idea this isnt my area 
any help would be appriciated.
any help would be appriciated. 
TECH Regular
Joined: Mar 2004
Posts: 423
Likes: 0
From: Puget Sound, WA
this is most likely detonation, commonly referred to as "pinging". What are your mods/mileage? What kind of gas are you running? Did you notice if it only happens when it is hot out?
Originally Posted by StyLishSS
okay, heres my problem. lets say im cruising at like 40 50 60 mph. if i give the car alittle gas to pick up, it sounds like somthing is rattling in the engine, almost like little metal ***** hitting eachother. i have no idea this isnt my area any help would be appriciated.
any help would be appriciated.
Originally Posted by 2MuchRiceMakesMeSick
what kind of gas do you have? hopefully not 87
Thread Starter
Staging Lane
Joined: Aug 2004
Posts: 55
Likes: 0
From: Troy,MI
i only run premium, and the engine was just rebuilt at 65k 3or4 thousand miles ago.. i hydrolocked it 
, its still under warranty. My mods are all basic nothing but some bolt-ons. Im going to get it checked at the shop within the week, i would just like to know if its serious.. when i rev my car in neutral or park it doesnt happen, only when im in gear, accelerating. its kind of like a crakling noise sounds like... hard to explain thanks for the quick replies tho
, its still under warranty. My mods are all basic nothing but some bolt-ons. Im going to get it checked at the shop within the week, i would just like to know if its serious.. when i rev my car in neutral or park it doesnt happen, only when im in gear, accelerating. its kind of like a crakling noise sounds like... hard to explain thanks for the quick replies tho TECH Regular
Joined: Mar 2004
Posts: 423
Likes: 0
From: Puget Sound, WA
You may be running too lean. Fuel filter, O2 sensors, MAF, etc. I had a same problem - with the same symptoms you describe. Turned out to be a bad cat converter (56k miles) - but it took almost half a year since I started hearing detonation until cat started smelling bad and threw "inefficiency" code. Check your A/F ratio, Fuel pressure, and see if your O2 readings are consistent between banks 1 and 2.
Forget going to the dealership, they will not aknowlege that you have a problem unless the car is throwing codes
Forget going to the dealership, they will not aknowlege that you have a problem unless the car is throwing codes
Originally Posted by StyLishSS
i only run premium, and the engine was just rebuilt at 65k 3or4 thousand miles ago.. i hydrolocked it , its still under warranty. My mods are all basic nothing but some bolt-ons. Im going to get it checked at the shop within the week, i would just like to know if its serious.. when i rev my car in neutral or park it doesnt happen, only when im in gear, accelerating. its kind of like a crakling noise sounds like... hard to explain thanks for the quick replies tho
, its still under warranty. My mods are all basic nothing but some bolt-ons. Im going to get it checked at the shop within the week, i would just like to know if its serious.. when i rev my car in neutral or park it doesnt happen, only when im in gear, accelerating. its kind of like a crakling noise sounds like... hard to explain thanks for the quick replies tho
TECH Senior Member
Joined: Apr 2004
Posts: 6,157
Likes: 1
From: Texas
Originally Posted by cyphur_traq
good god, do people actually put 87 in LS1's? I think that should be grounds for a public beating.
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