draining the cooling system May 15, 2008, 12:17:58 PM I want to drain the cooling system. The Haynes manual mentions two points from which to drain: from the radiator and from the engine block. I have not looked under the car yet, but I suppose I will find the drain fitting on the radiator easily. Where do I find the engine block drain plug? It's a V8 engine. Thanks! Quote Selected
draining the cooling system Reply #1 – May 15, 2008, 02:11:38 PM um, just pull the lower radiator hose off. Quote Selected
draining the cooling system Reply #2 – May 15, 2008, 02:15:55 PM oh, and be sure to where flip-flops and drain it after you drove about an hour up and down the freeway. Quote Selected
draining the cooling system Reply #3 – May 15, 2008, 03:21:54 PM LOLFlush it out good and re-fill with Zerex G05. Its the same stuff as Motorcraft Gold. GREAT coolant. Quote Selected
draining the cooling system Reply #4 – May 15, 2008, 04:46:51 PM Quote from: 32VFoxBird;219054oh, and be sure to where flip-flops and drain it after you drove about an hour up and down the freeway.....at a constant 6500 RPM :burnout: :hick: The radiator drain is on the passenger side. It faces in towards the motor.On most 5.0 blocks the drains have allen heads. I've never used them while in a car.....What are you planning? Quote Selected
draining the cooling system Reply #5 – May 15, 2008, 08:15:18 PM I took the air hose and blew air through the system til all the coolant was out. Through the radiator, and the lines going to the heater core. Flushed with the garden hose and such, more air, repeated a couple times. Its all good now. Wish I woulda had a couple gallons of vinegar to run through it all though to really get some of the crud out. Quote Selected
draining the cooling system Reply #6 – May 15, 2008, 11:49:16 PM I just dropped mine off at a radiator shop today. The same shop restored my Dad's radiator he had in the '69 Mach. When he got it back in, he had to go to a WARMER thermostat! They're just cleaning mine, it's going to cost about $40. Quote Selected
draining the cooling system Reply #7 – May 16, 2008, 12:59:03 AM Oh,I see now.When I read the title off this thread,I thought you needed to know how to go pee. Quote Selected
draining the cooling system Reply #8 – May 16, 2008, 02:53:35 AM QuoteWhat are you planning?Drain, flush and refill it. Would it hurt to flush with tap water once it is drained? Some say you should flush with distilled water, which is better I guess, but would it make such a difference that I'd have to go out and buy myself 30 bottles of distilled water? :) Quote Selected
draining the cooling system Reply #9 – May 16, 2008, 11:06:48 AM I used to actually go out and buy distilled. I stopped a few years/changes ago. No difference noticed. BTW the passenger side drain will be much more accesible while the block is in the car as compared to the driver side.:burnout: Quote Selected
draining the cooling system Reply #10 – May 16, 2008, 11:42:07 AM How are you gonna flush it? Quote Selected
draining the cooling system Reply #11 – May 20, 2008, 12:53:04 PM Quote from: thebruins;219030Where do I find the engine block drain plug? It's a V8 engine. Thanks! Quote from: V8Demon;219093...On most 5.0 blocks the drains have allen heads... But where are they? Or where is it? Quote Selected
draining the cooling system Reply #12 – May 20, 2008, 05:51:53 PM If you look just in front of the motor mounts from underneath the car, you'll spot them. The passenger side one is easily accesible while the driver side has a bit more stuff in the way (oil filter and oil pressure sending unit). Quote Selected
draining the cooling system Reply #13 – May 24, 2008, 01:54:03 AM The rad in my 88 is disgusting. I need to drain and flush it. Once the car hits op temp. it sky rockets too. So I guesiing the crud removal and a new stat might help this? Quote Selected
draining the cooling system Reply #14 – June 04, 2008, 11:47:53 AM Provided you don't have other issues.It won't hurt Quote Selected
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