wierd exhaust noise

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Jul 13, 2008 | 10:18 PM

transam0486

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From: Hudsonville, Michigan

wierd exhaust noise

just installed ls2 heads, long tube headers/ory, pac beehive valvesprings and i'm getting a weird noise from the exhaust. it's sort of an intermittent ticking noise. i don't know a ton about these engines so wondering if someone has had this. i'm wondering if it's a valve opening too early or something? i have NO idea and not sure where to start.

i've had O2 codes coming from all 4 (the 2 back ones are cause i don't have sims) ranging from high voltage/ low voltage/ slow to respond.

mods include the heads/exhaust/hpp3/portedpolished maf sensor...

thanks

Jul 14, 2008 | 10:18 PM

transam0486

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From: Hudsonville, Michigan

i installed the valvesprings because i intend to get a cam soon... could that be a problem??

Jul 15, 2008 | 12:48 AM

ProjectDuStU

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I might have had this same problem.. does the ticking sound get faster as the rpm level increases?

Jul 15, 2008 | 01:54 AM

Prerun4fun13

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more info needed here. Can you describe the sound a little better maybe possibly get a video??? oh ya 400th Post yeee

Jul 15, 2008 | 07:25 PM

GTOFan350

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Same ticking here. My valve train is completely stock but as the rpms increase so does this ticking. I almost think it could be valve lash between the rocker tips and the valve stems.

Jul 17, 2008 | 01:01 AM

transam0486

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it's a random noise and it's worse at idle. i had a mechanic quick listen to it and he said it might be the spark timing because i didn't get it tuned yet and i now have headers and heads.... i'll see what i can do about getting a vid

Jul 17, 2008 | 08:55 AM

slt200mph

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From: HOT'LANA, GAWJA

exhaust leak

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Jul 17, 2008 | 11:05 AM

slt200mph

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From: HOT'LANA, GAWJA

i would check all of your header bolts first and see if they are tight...it is always a good idea after a header install to snug them up after a couple of days...that would be the first place I would look..good luck!

Jul 17, 2008 | 02:45 PM

#10

CrankThat6Speed

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From: Houston

put your foot on the exhaust pipes to see if the rattling stops.

Jul 17, 2008 | 03:17 PM

#11

Paint_It_Black

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From: Chi-town West Burbs

Quote:

Originally Posted by CrankThat6Speed

put your foot on the exhaust pipes to see if the rattling stops.

Make sure you still have your shoes on.

Jul 17, 2008 | 03:29 PM

#12

slt200mph

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From: HOT'LANA, GAWJA

Quote:

Originally Posted by Paint_It_Black

Make sure you still have your shoes on.

Well said sir...

Jul 17, 2008 | 04:32 PM

#13

00_Z-28

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From: Claremore OK

Have you thrown a MAF senor code as well? The only reason I ask is it might be a blown Eng. Sen. fuse which controls the O2's and the MAF. If thats blown is screws up everything. Happened to me.

Jul 27, 2008 | 09:34 PM

#14

transam0486

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From: Hudsonville, Michigan

no maf code. lots of o2 codes. today it started really running like **** and was mis-firing. had random misfire code and "improper switches" code.

Jul 28, 2008 | 11:55 AM

#15

Drake02

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From: Los Angeles, CA.

Check if your spark plugs are loose. I used to have a ticking noise that would accelerate with the rpms and give me misfire codes.... I ended up having a loose spark plug. Sometimes it's just something simple causing serious symptoms.

Jul 31, 2008 | 12:30 AM

#16

transam0486

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From: Hudsonville, Michigan

k i'll check.

...started running like absolute **** and check engine light was actually blinking. never saw that before.

Jul 31, 2008 | 07:28 AM

#17

RZRSEDGE

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From: Tellico Plains, TN

Could be wrong; but it's probably a random misfire code with it blinking. I'd check all the plugs and wires to start with. Good luck and let us know what you find.