Need to Flush coolant system Need help
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From: Denham Springs, LA
Need to Flush coolant system Need help I searched the forum and didnt really find any details on how to do it on a ls1 I just got my trans am and the coolant is a ugly muddy brown color its horrible.
I need to flush it out thourougly I know that you drain the radiator but are there other areas to drain it from out of the motor? id like to get a set of instructions on how its done
I need to flush it out thourougly I know that you drain the radiator but are there other areas to drain it from out of the motor? id like to get a set of instructions on how its done
You could just take the upper radiator hose off (at the radiator) and aim it down towards the ground to flush it out. As you put the water into the top of the radiator with the hose and run the engine the hose on high will keep up with how fast it flows out. Do that for 15-20 minutes and you'll have a 100% clean system.
You need to do it with a stone cold engine and you have to remove the t-stat so it can keep flowing from the start and for the entire 15-20 minutes.
Not sure how to pull an engine plug, never had to do that to perform a complete flush.
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You need to do it with a stone cold engine and you have to remove the t-stat so it can keep flowing from the start and for the entire 15-20 minutes.
Not sure how to pull an engine plug, never had to do that to perform a complete flush.
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Last edited by LS6427; Nov 23, 2010 at 07:18 PM.
If it doesn't return to the upper radiator hose you can't flush the system for 15-20 minutes....which is how long takes to get all the crap out of the block.
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Last edited by LS6427; Nov 23, 2010 at 07:44 PM.
I like to just open up my drain line I installed on my radiator (its huge and gushes coolant out, I don't use that tiny petcock drain), take the t-stat out, put the hose in there and let it run for 15 minutes straight till clear water runs out. Easier than opening and closing it up a bunch of times, cause it takes alot of fills and dumps to truly get all the old crap out.
I have an LT1 radiator so I had that extra port........so I installed a huge flush line on it. Makes it so easy to flush my entire system by simply removing my t-stat (3 minutes) and jamming a hose in it.....let it run. Done.
See the hose in the picture with the white valve on it.
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I have an LT1 radiator so I had that extra port........so I installed a huge flush line on it. Makes it so easy to flush my entire system by simply removing my t-stat (3 minutes) and jamming a hose in it.....let it run. Done.
See the hose in the picture with the white valve on it.
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Last edited by LS6427; Nov 24, 2010 at 02:37 PM.
I'll second that; biggest waste of the afternoon for me. OP like the others have said pull the t-stat and flush water through. You could pop the drain plugs in the block, but you should still run clean water through the system...
