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06-01-2011, 02:14 PM
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#1
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12 Second Club
Join Date: Aug 2004
Location: Oradell
Posts: 8,368
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dex vs green
i love starting arguments lol
my truck just got a little warm... first time ive used it on a hot day with the AC cranked. so i got home popped the hood and the coolant was boiling and over flowed the overflow tank lol. i never had a problem before so i never even checked it... its looked like brown milk coming out! pulled out the owners manual and sure enough it WAS dexcool at one point... should i just fluch it and go green?
98 blazer zr2, 143k miles, unknown if its ever been changed or when lol... did not over heat the car, guage never got into the red so thats not an issue
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Last edited by maroman88; 06-01-2011 at 02:15 PM.
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06-01-2011, 02:31 PM
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#2
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,341
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Have seen this or evidence of this happening many times before. I would certainly flush the heck out of the system. As for color choice, I don't have an opinion.
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06-01-2011, 03:45 PM
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#3
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12 Second Club
Join Date: Aug 2004
Location: Oradell
Posts: 8,368
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lol well i just drained the radiator.... there was what appeared to be some green... some remnants of red... mostly watery looking substance and some dirt... so i have no idea what has been in there recently, maybe ill just flush it best i can and pick up some of that crap that says its ok to use with either color... safest bet haha
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86 Camaro
88 Camaro
95 Impala SS
97 Trans Am WS6
98 Blazer ZR2
00 Corvette
04 CTS-V
07 Sublime Charger Daytona
10 Tahoe SSV
12 Tahoe LT
17 Malibu LT
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06-01-2011, 04:13 PM
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#4
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Join Date: Aug 2005
Location: Millville & Little ferry New Jersey
Posts: 454
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The brownish stuff you are seeing is Iron Oxide from contamination or the coolant was improperly mixed with to much water in the past at some point..
90's blazer's had Dex coolant contamination problems supposedly due to the angle the cap is mounted to the radiator..
From what I remember the fix for it was a better sealing Stanton cap..
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2002 Z/28 = Firemutt Racing 370 w/ Cam, Trick Flow heads, TPIS 90mm Intake & 90mm T.B., Vigilante 3600 t.c., Michael's Transmissions Built 4L60E.
QTP Headers, Mufflex Stainless Y-pipe, Pypes Performance Exhaust, Moser 12-bolt w/ 33 spline axles,Truetrac & 3:73's., Spohn.
Cartek Tuned...
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06-01-2011, 04:14 PM
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#5
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12 Second Club
Join Date: Aug 2004
Location: Oradell
Posts: 8,368
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ahh yes i did read about the cap... and mine is original lol
__________________
86 Camaro
88 Camaro
95 Impala SS
97 Trans Am WS6
98 Blazer ZR2
00 Corvette
04 CTS-V
07 Sublime Charger Daytona
10 Tahoe SSV
12 Tahoe LT
17 Malibu LT
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06-06-2011, 07:27 AM
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#6
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Join Date: May 2010
Location: Brick, NJ
Posts: 1,868
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the dex cool does get nasty once its been contaminated....i would flush the hell out of the system.....take the rad hose off and point it straight down into a bucket, start the truck and wait for the engine to get rid of the coolant thats in it, take your trusty hose and stick it into the radiator and let it run till the water comes kinda clean....reattach hose, fill with coolant, check for leaks....enjoy
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Formerly known as blk95formula
86t/a_ram_air on TGO
2018 Silverado 1500
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06-08-2011, 11:32 AM
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#7
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9 Second Club
Join Date: Dec 2004
Location: Merchantville
Posts: 518
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Sounds like a blown head gasket to me.
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Twisted Minds Racing
2000 SS M6
9.71 @ 142
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06-08-2011, 11:19 PM
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#8
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11 Second Club
Join Date: Feb 2008
Location: Edison, NJ
Posts: 4,619
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Quote:
Originally Posted by BarneyMobile
Sounds like a blown head gasket to me.
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That or intake...
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1999 Z28 Convertible. 6 speed swap, wide cowl hood, full hockey stripes, and a whining 10 bolt.
2008 Sierra Vortec Max. 6.2 swapped, headers, Magnaflow catback, GMPP CAI, NHT optioned tow package.
2006 GTO, 11.48 @ 118.3
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06-11-2011, 09:55 AM
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#9
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12 Second Club
Join Date: Aug 2004
Location: Oradell
Posts: 8,368
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oil was perfect and clean, but i blew the motor now anyway! new one on the way
__________________
86 Camaro
88 Camaro
95 Impala SS
97 Trans Am WS6
98 Blazer ZR2
00 Corvette
04 CTS-V
07 Sublime Charger Daytona
10 Tahoe SSV
12 Tahoe LT
17 Malibu LT
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06-11-2011, 09:02 PM
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#10
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Join Date: Jul 2004
Location: West Long Branch
Posts: 13,598
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Huh? You blew the motor? Chocolate Milk coolant usually means coolant/oil mix.
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2/20/2013: They Day the ****s Stopped
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06-12-2011, 06:23 AM
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#11
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12 Second Club
Join Date: Aug 2004
Location: Oradell
Posts: 8,368
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yea, seperate incident lol. i was hammerin on it with the AC cranked and it developed a rod knock... prettty bad at that. the cooling was fine once i flushed out the old crap, the oil still looks perfect tho
__________________
86 Camaro
88 Camaro
95 Impala SS
97 Trans Am WS6
98 Blazer ZR2
00 Corvette
04 CTS-V
07 Sublime Charger Daytona
10 Tahoe SSV
12 Tahoe LT
17 Malibu LT
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06-12-2011, 12:39 PM
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#12
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9 Second Club
Join Date: Dec 2004
Location: Merchantville
Posts: 518
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Im still willing to bet some coolant got the bearings. Coolant destroys rod and main bearing!
__________________
Twisted Minds Racing
2000 SS M6
9.71 @ 142
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06-12-2011, 05:38 PM
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#13
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11 Second Club
Join Date: Feb 2008
Location: Edison, NJ
Posts: 4,619
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Quote:
Originally Posted by BarneyMobile
Im still willing to bet some coolant got the bearings. Coolant destroys rod and main bearing!
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Spin em quick that way...
__________________
1999 Z28 Convertible. 6 speed swap, wide cowl hood, full hockey stripes, and a whining 10 bolt.
2008 Sierra Vortec Max. 6.2 swapped, headers, Magnaflow catback, GMPP CAI, NHT optioned tow package.
2006 GTO, 11.48 @ 118.3
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06-14-2011, 08:11 AM
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#14
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Join Date: May 2010
Location: Brick, NJ
Posts: 1,868
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Quote:
Originally Posted by maroman88
yea, seperate incident lol. i was hammerin on it with the AC cranked and it developed a rod knock... prettty bad at that. the cooling was fine once i flushed out the old crap, the oil still looks perfect tho
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don't you know you cant beat on a 4.3 with the A/C on lol
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Formerly known as blk95formula
86t/a_ram_air on TGO
2018 Silverado 1500
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