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cooling system radiator engine flush

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Old Aug 20, 2007 | 08:28 PM
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cooling system radiator engine flush

general tips or specifically for my 460?

i figured it's gotta be pretty cheap and well worth it considering the stuff in there now looks like a combo of mud and oil.

is it as simple as pulling the lower plug on the radiator, running a hose through it and filling it back up. seems like $20 or $30 well spent. suggestions? better steps? more complicated?
 
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Old Aug 20, 2007 | 08:30 PM
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Get the prestone flush kit from autozone, and a bottle of coolant system flush additive. Dump the additive in about a week before you do the flush.

The flush is really easy - hook the kit up, and run the hose until it runs clear. Drain & refill.

Be prepared to replace the water pump if it hasn't been done in a while. If you're a proactive kind of guy, like me, just replace it at the same time and save yourself the hassle of getting stranded someplace.
 
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Old Aug 20, 2007 | 08:32 PM
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He's only got less than 60k miles on that rig, I would be willing to bet that the water pump is still in pretty good shape.... Although he says his coolant looks like mud... On second thought, I'd replace the whole engine
 
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Old Aug 20, 2007 | 08:34 PM
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why would this cause water pump issues? for $80-$100, i just assume wait. i appreciate the suggestion, but unless you say "it will break within a week", i'll hold off.

EDIT: reading the other threads on antifreeze, i don't think i have major engine issues. no water in the oil, otherwise truck runs excellently. granted, i can't explain why the antifreeze looks like crap (i've only had the truck 6,000 miles)
 

Last edited by tomtoc; Aug 20, 2007 at 08:40 PM.
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Old Aug 20, 2007 | 08:41 PM
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Originally Posted by tomtoc
why would this cause water pump issues? for $80-$100, i just assume wait. i appreciate the suggestion, but unless you say "it will break within a week", i'll hold off.
Andy likes to always be prepared. He's got multiple brand new jugs of every kind of fluid you can think of in his cabinet in the garage, even though he lives about 3 blocks from a Kragen I wouldn't worry about the water pump until you start seeing coolant from the weep hole. These water pumps do have weep holes don't they?
 
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Old Aug 20, 2007 | 08:43 PM
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Originally Posted by Skandocious
These water pumps do have weep holes don't they?
please explain the the computer guy (not a mechanic) what a week hole is.
 
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Old Aug 20, 2007 | 08:46 PM
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Originally Posted by tomtoc
please explain the the computer guy (not a mechanic) what a week hole is.
Well the only reason I bring it up is because I had some experience with it this weekend on my brothers truck. He drove up from the bay area ('bout 2 hours) and found that his truck was drippin a few drops of coolant on the ground. We had a closer look and saw that it was coming from a small hole on the front of the water pump, referred to as a "weep" hole. Apparently the water pump will start to "weep" from this hole (is it crying?) when it is starting to go out...

Now that was on a 7.3L and I've never had a close look at the bottom of my water pump, so I'm not sure if the gassers have it. I'm assuming they do...
 
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Old Aug 20, 2007 | 09:07 PM
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Yes it has a weep hole. And leave my garage out of this.

The reason I suggested it is that age is a factor as well as miles. If the system is really that cruddy, then sometimes a flush can actually cause a leak, if the crud was stopping the leak in the first place.

What I'm saying is that replacing a water pump before it goes out is good insurance, but entirely optional. I'm also not saying it will leak within a week of doing this, but don't be surprised if it does, either.

The problem with a leaky waterpump is that if it starts to go while you're on a long trip, you will lose a good amount of coolant. Unless you're the type that checks the gauge every 10 minutes on the road, you may not notice your engine has overheated until it's too late. Just food for thought.
 
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Old Aug 20, 2007 | 09:10 PM
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o the decisions...$80 on the pump, or $80 on a potential tow...and lost time. or just forget the whole flush (which just seems like a bad idea)
 
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Old Aug 20, 2007 | 09:20 PM
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DO NOT forget the flush if your coolant looks like mud!! And don't forget that the tow would be $80 PLUS the cost of a new water pump = $160, instead of $80 just for the pump... Wait!! Where did you find a water pump for $80? That sounds pretty cheap, my brothers was like $130-140, although I suppose that was for a much heavier duty engine.

Another thing to consider is that if Andy is right and it DOES leak after you get the new coolant in, you'll have to drain the system all over again, and thus have wasted money, time, and effort on the first fluid flush... So tack on another $30-40 for coolant. Food for thought
 

Last edited by Skandocious; Aug 20, 2007 at 09:23 PM.
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Old Aug 20, 2007 | 09:23 PM
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autozone
http://www.autozone.com/R,APP200950/vehicleId,2359504/initialAction,partProductDetail/store,369/partType,00095/shopping/partProductDetail.htm

i'm sure it's a crap brand and odds are i'd spend more, but i just use autozone's b/c its pretty good for finding ballpark prices on stuff. $130 could end up being right.
 

Last edited by tomtoc; Aug 20, 2007 at 09:48 PM.
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Old Aug 20, 2007 | 09:27 PM
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Yeah buddy, avoid that Duralast pump like the plague. It's up to you to replace that water pump though... If you've got the money to throw at it, then Andy is right, it's good insurance.
 
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Old Aug 20, 2007 | 09:27 PM
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I would never in a million years buy a waterpump from autozone. Get one from Ford or JBG.
 
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