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#1
06-14-2006, 12:54 PM
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noisey cold start
suddenly have noisey cold starts that last a half a second...but still make me cringe. its just a faint knocking and then quiet.
anything to check here other than oil level? probably due for an oil change now anyway. anyone reccommend any additives like Lucas or such to fix this?
__________________
doing a job? take digital pictures before and after! helps you for reinstallation, and everyone else who will do the job later! 
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#2
06-14-2006, 01:09 PM
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Re: noisey cold start
It could be a filter problem, the anit-drainback valve not working quite right. Either way oil change and see what happens.
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#3
06-14-2006, 02:26 PM
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Re: noisey cold start
Quote:
where is this valve youre referring to?
__________________
doing a job? take digital pictures before and after! helps you for reinstallation, and everyone else who will do the job later!
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#4
06-14-2006, 03:28 PM
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Re: noisey cold start
The anti drainback valve is part of SOME oil filters, but not all of them. It is usually on better filters.
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billibong 99 4X4 Blazer LS Vin W Repairs: U/L Ball Joints, I/O Tie Rod Ends, New Tie Rod Adjusting Sleeves, New Idler Arm, R & L Front Hubs, R & L Upper CA Bushings, New Gabriel Ultramax Shocks (what a difference) F & R Brakes and Rotors at 110,000. Infinity Speakers to replace the blown factory sets. 162K+ and still kicking.
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#5
06-15-2006, 09:27 AM
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Re: noisey cold start
and this would contribute to the noise on a cold start how?
__________________
doing a job? take digital pictures before and after! helps you for reinstallation, and everyone else who will do the job later!
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#6
06-15-2006, 10:45 AM
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Re: noisey cold start
By allowing the head of oil that would normally be kept in your upper galleries to drain out into the pan via your filter. When you start up, it takes time for the air to be worked out. A filter with a good anti-drainback valve prevents this from happening. AC/Delco PF52 or a decent Wix filter/NAPA Gold have good ADVs in them and prevent this startup noise.
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#7
06-15-2006, 11:06 AM
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Re: noisey cold start
I would suggest never using anything but an AC Delco or a Wix, Napa if you have to (they are made by Wix). Although if you are doing an engine flush I would suggest using a STP filter, decent filter for only a few bucks at AutoBone. Let us know if the oil change and a decent filter works for you. Good luck
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2002 Pontiac Gram Am K&N Air Filter Mobil1 5W-30 Extended 15K 2 JL Audio 12" Subs Sealed JL Audio Box Coustic 400 Watt Class D Mono Amp Pioneer Head Unit 50X4 MP3, WMA, AAC Super Tuner Polk DB750 6.5" all around Yankees Suck!!!!!!!!
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