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2nd Gen Ram Tech1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
I noticed some pinkish purplish stuff on the insides of the coolant reservoir. The coolant itself is green but there's this stuff on the sides like mold. I tried getting it off with my finger but it doesnt come off. Anyone have an idea what this could be? Attachment 20619
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I did the plenum repair not too long ago and flushed the radiator and put all new green coolant in. I just noticed this recently. I hope its not transmission fluid, but why wouldn't the fluid be darker reddish, and not just the sides of tank? Does this image work? Attachment 20620
Last edited by coldsteel5; 06-29-2013 at 10:58 PM..
the truck is a 2001 1500 sport. The radiator, as far as I know since I have had it, is the original one. I did have it pulled it and repaired for leaking a while ago, but it wasn't even the radiator, it was one of the connections on the passenger side. there is little spots like what mold does. I tried rubbing it but it doesn't come off.
i would guess that somewhere along the way, a previous owner used some red dex-cool coolant for GM. it doesn't mix with with green, and forms a nasty sludge. you probably have some remaining residue in the block and radiator.
you might want to flush the radiator and block and heater core to get out as much as possible. there are 2 block drain plugs hiding behind the engine mounts. spray them liberally with penetrating oil like PB blaster or other for several days, and when you attack them, don't round them off. the drain plugs are hard to reach and are at a bad angle.
01 1500 Reg Cab 4wd 5.2 auto 3.55 285/75/16 steps tow hooks sc3815 180 3923 trans cooler filter posilok powertrax (removed) timbren britebox pioneer head rockford amp speaker cobra cb firestick hughes plenum water pump timing chain oil pump rear main hub bearings brakes shocks cracked dash cad bushings seals ujoints trackbar tcase Robert Griffin Trans