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Thread: tapping noise!
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10-08-2010, 07:56 AM #1
- Join Date
- Jan 2010
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- culver city, Ca.
- Posts
- 460
Blackened fire chicken- 2000 Pontiac Trans Am WS6
tapping noise!
need sum help on this one...got this tapping noise, only does it when im in drive and accelerate, sounds sort of like an exhaust leak from the manifold, but it doesnt make the noise in park or neutral, so im thinking it cant be that ...i have no idea what it is.sounds like and exhaust leak, or bad cats maybe? cause i did throw a p0430 code a while ago, the ses light went off by itself and its the passenger cat, but the noise is coming from the drivers side... or is it sumthing internal in the engine? there is a loss of power ive noticed and the tapping increases as i accelerate
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10-08-2010, 08:36 AM #2
This may not be the problem you are having but I have noticed something similar to your problem that I am having which is with the gas pedal when I accelerate it makes a tapping noise but when I let off it goes away I have yet to figure out why it does that
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10-08-2010, 08:45 AM #3
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10-08-2010, 08:53 AM #4
Yeah sounds like its the gas pedal but I have no clue why it is making a noise
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10-08-2010, 09:59 AM #5
- Join Date
- Jan 2010
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- culver city, Ca.
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- 460
Blackened fire chicken- 2000 Pontiac Trans Am WS6
mine sounds like its coming from right behind the dash where the gauges and speedometer are...almost like a piece of plastic flapping in the dash, but my a/c aint on, it doesnt even work right now and it only does when im in drive...when i park it and rev the car, its gone...
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10-08-2010, 10:34 AM #6
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- Jan 2010
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- culver city, Ca.
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- 460
Blackened fire chicken- 2000 Pontiac Trans Am WS6
ok, are there supposed to be 6 bolts for the exhaust manifolds??? cause it looks like the very last bolt on the driver side manifold, closest to the fire wall has broken off...
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10-08-2010, 04:18 PM #7
- Join Date
- Apr 2007
- Location
- bloomfield nj
- Posts
- 513
Red- 1998 trans am
thats your knock sensor its retarding your ignition and makes the car lose power.It does that so you dont harm your motor.you might have bad gas or you need to check the drivetrain.
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10-08-2010, 05:58 PM #8
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10-09-2010, 09:18 AM #9
- Join Date
- Jan 2010
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- culver city, Ca.
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- 460
Blackened fire chicken- 2000 Pontiac Trans Am WS6
yup, im "missing" the very last bolt on the drivers side manifold, causing an exhaust leak...the head of the bolt broke off, but its flush with the manifold and not the head, witch is sort of good news...getting it fixed right now, hopefully the manifold didnt warp so i dont have to take it to a machine shop...im assuming i still need a gasket for this, cause i know older v8's dont really need them, but this is an aluminum block so i dont think its a good idea putting it back on without a gasket...
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10-14-2010, 03:23 PM #10
- Join Date
- Jan 2010
- Location
- culver city, Ca.
- Posts
- 460
Blackened fire chicken- 2000 Pontiac Trans Am WS6
if anyone cares to know, i got the exhaust leak repaired, $250 to take the exhaust manifold and the catalytic converter off, and get the broken bolt out of the head, then everything put back togther, not a bad price. the cat ended being almost torn in half, had to get that welded back together, that was part of the repair too. so the reason this all happened, BAD MOTOR MOUNTS! i guess i drove my car so hard i broke a bolt off the exhaust manifold and ripped the drivers side cat almost in half...im looking at around $400 to replace the mounts, witch isnt too bad either. so for now, ill have to take it real easy on the car till i can get the mounts fixed...
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10-14-2010, 07:01 PM #11
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10-15-2010, 08:21 AM #12
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10-15-2010, 02:14 PM #13
holy shit dude! i'm glad you are getting it fixed but at this point you may have been better off just getting headers!!!!
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10-15-2010, 02:27 PM #14
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10-15-2010, 07:51 PM #15
Piston slap? I know the 350's are known for that...does it go away after a while or is it constant?
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10-15-2010, 07:52 PM #16
NVM on the above post just scrolled to the bottom and put in my .02
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