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05-15-2009, 05:02 AM #1
- Join Date
- Apr 2007
- Location
- Florida
- Posts
- 46
Pewter- 2001 Trans Am WS-6
Knocking sound & burning a little oil
I have an 01' WS6 Trans Am. She runs great, but I've noticed a knock or tapping sound. Its not there really when the car is started from cold, but rather say when I'm idling after the engine has been running for a while. Its hard to say where the sound is coming from, but my best guess is under the engine.
Not sure if its related, but I've also noted that she drinks a little oil (low oil light comes on abut every 2500-3000 miles). I've heard some guesses, but wanted to hear what the forum's opinion might be on these two issues.
*Also, limited # of mods: Flowmaster exhaust, K&N air filter, new lid (guessing whisper, but its not labeled or stock), & b&m shifter that I know of (i'm 2nd owner).
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05-15-2009, 06:43 AM #2
- Join Date
- Aug 2005
- Location
- Texas Department of Corrections
- Posts
- 18,128
- Retired Outlaw Sum Bitch
What kind of oil pressure do you have at idle and at cruising?
What kind of oil/viscosity you running?
What kind of oil filter you have on there?
How often have you been changing oil?
Is there any smoke at cold idle/start up/cruising after warm up?
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05-15-2009, 07:05 AM #3
- Join Date
- Apr 2007
- Location
- Florida
- Posts
- 46
Pewter- 2001 Trans Am WS-6
What kind of oil pressure do you have at idle and at cruising? Between 40 & a little past 60 on dash gauge
What kind of oil/viscosity you running? 5w30 Havoline (in FL)
What kind of oil filter you have on there? Not sure, usually have it done a a local firestone
How often have you been changing oil? Initially every 3K, then tried using the change oil light, but have gone back to 3K (bought the car w/ 25K miles two years ago, 63K now)
Is there any smoke at cold idle/start up/cruising after warm up? I haven't noticed any, but a buddy said it puffed smoke when i revved it (in neutral to get someone else's attention) the other day
Thanks for the quick reply, keep 'em coming!
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05-15-2009, 01:57 PM #4
- Join Date
- Aug 2005
- Location
- Texas Department of Corrections
- Posts
- 18,128
- Retired Outlaw Sum Bitch
Sounds like you have some issues with varnish/sludge. Run a decent oil filter like AC Delco/NAPA/WIX and run a good synthetic and let it clean some crap out.
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05-15-2009, 03:57 PM #5
- Join Date
- Jul 2006
- Location
- Glen Carbon, IL
- Age
- 45
- Posts
- 397
Silver- 2000 Camaro SS
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05-16-2009, 12:00 PM #6
- Join Date
- Apr 2007
- Location
- Florida
- Posts
- 46
Pewter- 2001 Trans Am WS-6
Oil change is planned for Monday. These have been somthing of the on-going type problems and I was wondering if there was something that might solve the problem. I had read somewhere that a bad oil pump might be the cause of the knock and thought it would also explain the burning of oil.
-Oh and she's had synthetic since I bought her 2 years ago.
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05-16-2009, 12:09 PM #7
- Join Date
- Aug 2005
- Location
- Texas Department of Corrections
- Posts
- 18,128
- Retired Outlaw Sum Bitch
Bad oil pump would show very low oil pressure or erratic oil pressure.
I would autoRX it for sure.
http://www.auto-rx.com/
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05-16-2009, 12:32 PM #8
That low oil light should never have a chance to come on. What are you at least 2 quarts low when that light comes on? Crazy. If its taking that much oil down you need to check it daily. All it will take is a few 6000 RPM rips while being low 2 qts of oil to spin a crank/rod bearing.
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05-17-2009, 03:20 PM #9
- Join Date
- Apr 2007
- Location
- Florida
- Posts
- 46
Pewter- 2001 Trans Am WS-6
Good to know its not likely to be the oil pump (i looked up how to get to it and that looks like a pretty big project). I will definately try the auto rx.
I usually just get the oil changed when the low oil light comes on, but next time I'll add oil and see how many quarts its down. I agree, if its down 2 or more, definately a problem!
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05-17-2009, 05:46 PM #10
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