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  #1  
Old 02-24-2010, 08:55 PM
Ironhead621 Ironhead621 is offline
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Default Question about sludge

So I took my '02 4.7 1500 to the kwikie car lube place on pulling the oil filler cap there was some white crap on the bottom side of the cap. The guy was explaining that it was sludge and it needed to be cleaned out with their $99 engine flusher.

I told him not yet it will have to wait till the 1st. I looked up some info online and found an article as well as in the forums that if you exchange 1 qt of ATF fluid for 1 qt of oil during an oil change that this will help with removal of any sludge in the system.

I'm not sure if I really have a problem with it... the truck is an 02 with 63,000 miles on it. Any info, helps, hints or suggestions???
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Old 02-24-2010, 09:55 PM
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That is nothing more than condensation and Jiffy Lube trying to upsell you something you do not need. If your engine is sludged up. Which I doubt, you do not want to be hooking a machine to it and breaking all that stuff loose so that it can clog the oil pickup screen. Stay away from the engine flush machines. Tranny flushes and cooling system flushes....yes. Engine.....NO.
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Old 02-24-2010, 09:57 PM
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White sludge is usually water/antifreeze mixing with the oil. Is this also on the dipstick? Any problems with engine like loss of power, white smoke from the exhaust, etc? If so, get a compression check to rule out a bad head gasket. Pull and check the spark plugs, also. What's the weather like where you live? Could just be condensation. Either way, I don't think an engine flusher is a waste of $$.
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Old 02-24-2010, 10:03 PM
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There are additives that will help clean your motor out slowly instead of blasting it all in one shot. Maybe even switch to synthetic oil
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Old 02-24-2010, 10:57 PM
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No loss of power really, I figured it was condensation after reading a few prior posts. I'm in Central Texas so temperatures change about as much as I change my underwear! lol... I'm not about to waste my $$ on something without doing a little bit of research on it. Question though, what about the "replacing a qt. of oil with a qt. of ATF" to help remove crap from the engine? I also have a 99 v6 firebird with 183K miles on it... runs like a champ but I'm sure it could use some TLC too!
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Old 02-25-2010, 08:50 AM
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Well i personally have had a bad experience with the atf deal.. i say dont do it.. try the sea foam stuff.. it worked wonderfully with me.. i recommend it to everyone on the web!
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Old 02-25-2010, 09:21 AM
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Quote:
Originally Posted by ssteadman09 View Post
Well i personally have had a bad experience with the atf deal.. i say dont do it.. try the sea foam stuff.. it worked wonderfully with me.. i recommend it to everyone on the web!
I say do the seafoam too. Change out your PCV valve and change to a synthetic oil, maybe mobil 1 or amsoil and do the changes yourself at 3k miles on the dot for the next 3 or 4 changes instead of waiting 5k or more at least till you get a normal look coming out. This way your flushing it but slowly and with actual oil...plus like others said, its better than having chunks of stuff getting loosened up and thrown around in you engine.
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Old 02-25-2010, 09:26 AM
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Bottom line is that the 3.7/4.7 engines are prone to a little condensation buildup, especially if you make a lot of short trips (under 10 miles). Just keep the oil changed and take a trip at highway speeds for 10 miles or so once in a while and make sure your PCV system is in good working order to help minimize condensation.
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Old 02-25-2010, 10:23 AM
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For what it's worth, my 02 4.7 has done the same thing under the cap since I bought the truck new. The shadetrees at the dealership couldn't offer any explanation as to its cause. It's not sludge, just condensation. Most of my driving is at highway speed, and I've never seen any white or brown in the oil itself, so I just keep it changed every 3-4K miles and haven't had any oil problems during the 8 years I've had it.
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Old 02-25-2010, 02:02 PM
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Quote:
Originally Posted by Ironhead621 View Post
No loss of power really, I figured it was condensation after reading a few prior posts. I'm in Central Texas so temperatures change about as much as I change my underwear! lol... I'm not about to waste my $$ on something without doing a little bit of research on it. Question though, what about the "replacing a qt. of oil with a qt. of ATF" to help remove crap from the engine? I also have a 99 v6 firebird with 183K miles on it... runs like a champ but I'm sure it could use some TLC too!
Wasn't my intention to jump to the big stuff right away, just wanted to make sure nothing was left out. Agree with the switch to synthetic, that will slowly clean it out. I've switched all my vehicles to it.
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