Tominator Posted January 2, 2013 Report Share Posted January 2, 2013 Yes, another 2003 Silverado sad story. Had the truck in 4wd the other day because of all the snow. Noticed it didn't sound too good as I got home. Didn't think much of it. Today as I loaded up the trash barrels I noticed a little spot of greenish yellowish fluid below the truck. Looks like antifreeze, but thought it might also be gear oil from the front differential? Thoughts? Quote Link to comment Share on other sites More sharing options...
wtnhunt Posted January 2, 2013 Report Share Posted January 2, 2013 Simple stuff first bud, have you checked the fluid levels? Check the radiator, of course after it is cool. If the radiator is ok then check your front differential. Hard to say where to go from without knowing what the problem is. Quote Link to comment Share on other sites More sharing options...
redkneck Posted January 2, 2013 Report Share Posted January 2, 2013 You put fluids in these things? Mine leaks out of every orifice it has, not too much. When they quit leaking ours time to add more fluid. You should be able to feel and smell it Chris and get an idea. Water pumps only last so long in them before they begin to weep. Quote Link to comment Share on other sites More sharing options...
Shaun_300 Posted January 3, 2013 Report Share Posted January 3, 2013 The coolant in GM's these days is Dexcool which is a reddish pink colour, but if someone has switched it to the older coolant that's green or has added dye at some point in the trucks life it could be the colour you're describing. Most common thing if it's coolant is the waterpump on those engines. Like William said though, check the fluid levels first, if you can't find anything I recommend taking it into the shop to get it up on a hoist and have it looked over and see what they find. Quote Link to comment Share on other sites More sharing options...
LETMGROW Posted January 4, 2013 Report Share Posted January 4, 2013 (edited) If you could park in a garage and line the floor under the truck with clean newspapers you might be able to narrow down where the fluid is coming from. The yellowish color baffles me a bit. The coolant should be pinkish in color BUT if the coolant has been changed at some point in time there are "one size fits all" coolants out there. Some of these are in fact yellowish in color. Many Asian cars have a yellow color cast to the coolant. First I would check all the levels as has been suggested. When you check the fluids, note the color of each. Engine oil, transmission fluid, coolant, transfer case, front and rear differentials and power steering. If you find a yellow fluid that is where I would concentrate on looking for a leak. This sounds far fetched but have you had anything in the pickup bed which might have had a fluid in it which could have leaked out? Shaun's suggestion is a good one. Get it on a rack to check it closely. It just helps save some time and effort if you have an idea where to look. Lynn Edited January 4, 2013 by LETMGROW Quote Link to comment Share on other sites More sharing options...
Tominator Posted January 5, 2013 Author Report Share Posted January 5, 2013 Thanks guys. I haven't driven it much since I've been on break. I'll check the levels and see if it continues. Quote Link to comment Share on other sites More sharing options...
Shaun_300 Posted January 7, 2013 Report Share Posted January 7, 2013 Another thing I forgot to mention it could be is A/C dye, could have spring a bit of a leak at the condenser or compressor, or one of the seals... these seals tend to leak once the cold weather hits as they shrink a bit with the cold air. Quote Link to comment Share on other sites More sharing options...
Tominator Posted March 16, 2013 Author Report Share Posted March 16, 2013 Finally got the money saved up to get it checked out. Turns out nothing was wrong with the front differential, and the noise I was hearing up front was both front bearings. I like that old truck, but I would love to get a new one.. Quote Link to comment Share on other sites More sharing options...
Ravin R10 man Posted March 17, 2013 Report Share Posted March 17, 2013 (edited) What about the "dripping"?? ...is that still going on?? I bet it only happens when it gets heated up right? Edited March 17, 2013 by Mathews XT Man Quote Link to comment Share on other sites More sharing options...
wtnhunt Posted March 18, 2013 Report Share Posted March 18, 2013 Can remember helping my stepdad change wheel bearings on a few trucks when I was younger, best as I recall it was not all that bad a job so long as you have all the tools you need. Here ya about wanting a new truck though. Quote Link to comment Share on other sites More sharing options...
Tominator Posted March 28, 2013 Author Report Share Posted March 28, 2013 What about the "dripping"?? ...is that still going on?? I bet it only happens when it gets heated up right? Don't know. It's not happening anymore though. They said the 4WD was fine. Quote Link to comment Share on other sites More sharing options...
Shaun_300 Posted March 28, 2013 Report Share Posted March 28, 2013 What about the "dripping"?? ...is that still going on?? I bet it only happens when it gets heated up right? An explanation for the yellow snow under your car - The Globe and Mail This will explain that... it even left everyone at our shop stumped until we found out about the reaction of the zinc that's in today's exhaust systems, and how it reacts to the salt from the roads when it's hot, then cools. Interesting! Quote Link to comment Share on other sites More sharing options...
Ravin R10 man Posted March 29, 2013 Report Share Posted March 29, 2013 well, I can explian the "yellow" snow..lol wow ..zinc reaction Quote Link to comment Share on other sites More sharing options...
LETMGROW Posted March 30, 2013 Report Share Posted March 30, 2013 well, I can explian the "yellow" snow..lol wow ..zinc reaction If you drink better quality or more beer the snow doesn't turn yellow. Lynn Quote Link to comment Share on other sites More sharing options...
Ravin R10 man Posted March 30, 2013 Report Share Posted March 30, 2013 Lynn I dont drink beer or much anything including soda milk by the gallon Quote Link to comment Share on other sites More sharing options...
Tominator Posted March 30, 2013 Author Report Share Posted March 30, 2013 An explanation for the yellow snow under your car - The Globe and Mail This will explain that... it even left everyone at our shop stumped until we found out about the reaction of the zinc that's in today's exhaust systems, and how it reacts to the salt from the roads when it's hot, then cools. Interesting! Very interesting, and quite plausible. Thanks Shaun. Quote Link to comment Share on other sites More sharing options...
Shaun_300 Posted March 31, 2013 Report Share Posted March 31, 2013 Yeah it's quite interesting! Looks like a radioactive substance on the ground under your vehicle, but totally normal, if you have this under your vehicle and your area uses salt on the roads like here. Quote Link to comment Share on other sites More sharing options...
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