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04-18-2006, 05:26 PM #1
- Join Date
- Oct 2005
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- Austin, TX
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- 35
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- 185
Black- 2001 Trans Am WS6
Clicking noise after a few WOT pulls
I've just started to notice that after I do a few WOT pulls to 5,500rpm or so, when I finally let off I get a clicking/swirling sound from the engine bay. The car also seems to not want to rev as much after this. For example, when I press in the clutch and push down the gas pedal, it doesn't rev as high as it normally does with an equal pedal push. After driving normally for about ten minutes or turning the car off and letting it sit, it's back to normal. However, I'm concerned about this noise, as I don't want to damage my precious WS6 in any way. It's a 2001 WS6 Trans Am, M6, pretty much stock besides K&N air filter and a few other litte things. It has 51,000 miles. I'm hoping this noise isn't anything serious or is an easy fix.
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04-19-2006, 06:20 AM #2
If it's during the end of the run and sounds like a rattling noise, could be spark knock.
If it's ticking/tapping all the time, you may have bent a pushrod...
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04-19-2006, 07:16 AM #3
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- Oct 2005
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- Austin, TX
- Age
- 35
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- 185
Black- 2001 Trans Am WS6
It's at the end of a run, and goes away after five to ten minutes. How do I fix a "spark knock"? I'm running 93 octane.
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04-19-2006, 07:22 AM #4
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- Aug 2005
- Location
- Commerce Ga
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- 47
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Black, Blue- 07 TBSS, 07 GSXR1000
You could be floating the valves. They are hydraulic. So that might be your problem and it takes a few minutes for them to pump back up. You shouldn't have spark knock with 93.
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04-19-2006, 08:43 AM #5
- Join Date
- Oct 2005
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- Austin, TX
- Age
- 35
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- 185
Black- 2001 Trans Am WS6
It definately sounds like something with the valves. I had a honda prelude before this car, and it died at 184k miles after it began continously making a more violent version of the noise I hear for a few minutes after some hard WOT pulls. What can I do to prevent this "floating" and not damage my engine?
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04-19-2006, 11:05 AM #6Originally Posted by BIG D's SS
Originally Posted by BIG D's SS
However spark knock is seldom heard at any time except wide open throttle so I don't think it's the case here.
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