Originally Posted by tmc2k1
Yeah, dark color brown gummy looking ****. Its definitely not black. I would find it hard to believe if it was a cracked block with only 50k miles. It is a V6 so it does not have the power steering cooler.
Does that thing have the tranny fluid lines going to the radiator? I don't know **** about the V6's.
The inside of the radiator could be cracked, its common.
If everything is ok....just do a proper flush.
Here's how I do it. Takes a couple minutes to set it up, then flush it, then a couple minutes to put the t-stat back in. Short of pulling engine plugs and spending alot of time that way, there is no better way to flush all the old coolant and dirt out.
-Remove radiator fill cap.
-Remove the t-stat from the housing. Leave the housing attached to the rubber radiator hose, just remove the 2 housing bolts (2-3 minute job).
-Put t-stat housing back on. (1 minute) Just put one bolt in, no need to put them both in, thereís no pressure in the system during the flush.
-Take the entire radiator drain valve (petcock) "off" and let it drain, don't just open it. It'll drain faster with it off and thatís what you want. ((Buy a new petcock valve before starting this flush, sometimes they break when you remove them all the way just because they're cheap plastic, they're like $2.00))
-Take a hose and stick it in the radiator fill cap, running medium to high.
-Start the engine.
-Let it run for about 15-20 minutes or until the water is running out the drain CLEAR.
-When it does your entire system is clean.
-Remove the overflow reservoir from the car and clean it out real good. (I had to use gasoline to clean mine out because the sludge and grime was so thick inside. The gas broke it all down and then it flushed right out. Big clumps of black crap. Make sure the lines that go to the reservoir are also cleaned out. My sludge came from my power steering fluid leaking into my coolant system.)
-Put the t-stat back in.
-Put the overflow reservoir back in.
-Put the drain valve back in. Use the new one, what the hell.
-Put half a jug of Dexcool in the radiator. (Or if you live in very cold places, 1 to 1 Ĺ jugs of Dexcool)
-Fill the rest with water. you do not need to use distilled water, clean hose water is just fine, just make sure your city water is clean and not total crap quality.
**Bleeding the system of air:
Start it up and let it run and warm up till the t-stat opens, youíll see it flow in the radiator fill neck, once it starts to flow the level should drop down, immediately top it off with coolant/water. Then the flow will stop. Wait one more time for the t-stat to open again and start to flow, if it drops down again top it off again. Do it a 3rd time if you want to make sure. I always massage the upper and lower hoses while its warming up to help move the air bubble by the t-stat on the engine side of the t-stat. Squeeze it rapidly and fully like 20 times each until it starts to flow. Always works like a charm. Just keep checking your temp gauge until the t-stat opens to make sure itís not overheating from a trapped bubble. May take 10-15 minutes for the t-stat to open the first time.
If you do start to get hot while sitting there and the t-stat will not openÖ..you have an air bubble on the engine side of the t-stat. Shut the engine off and rapidly squeeze those hoses again. Then start the engine again and see if the t-stat will open.