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Old 02-03-2003, 10:30 AM
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Post Stop leak

I am just going to kill my car. I have had nothing but problems with it the whole time I have had it. I just noticed that I am leaking anti-freeze out of my radiator somewhere on the bottom. I can't tell where it is because the radiator support is in the way. It has plastic on the sides and I am wondering what is the best stop-leak. Will stop leak seal the plastic if thats where the prob is?I don't know how much a used radiator is but I don't really care about this POS anymore, will stop leak screw anything up? Anyone know how much a used radiator goes for? I won't be using the a/c, and I have a radiator mounted aftermarket trans oil cooler. so I just need a radiator. Steve

[ February 03, 2003: Message edited by: 5.0Towncar ]</p>

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Old 02-03-2003, 04:30 PM
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stop leak should not hurt it at all, the largest manufacturer of stop leak type products, BARS LEAKS is headquartered in this little town, they make the stuff under a lot of different names DuPont,Prestone,silver seal,etc. its made from lots of common things,ginger root, flax, etc.their biggest customers are the oem factories, where every car that comes down the line has a couple of cubes (of BARS LEAKS) in the cooling system.
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Old 02-03-2003, 04:32 PM
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Yeah at work we have the Prestone stop leak, bars peletized(looks like old coke) and the golden powder stuff....WHats the best?I just don't want the same crap in my motor screwing stuff up. Steve
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Old 02-03-2003, 05:14 PM
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i've always used the pellatized stuff, works good.
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Old 02-07-2003, 08:27 AM
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You can cut down on the pressure cap. It will only change the temp a little warmer by a few degrees per pound.
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Old 02-07-2003, 09:28 AM
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Did you say that your radiator has plastic sides? If so it is most likly a seam leak, stop leak is a VERY tempary repair in that case. If it is a pinhole leak in the core stop leak works ok but do yourself a favor and PULL THAT RADIATOR OUT and take it to a repair shop!!Cheaper than a tow bill and a lot cheaper than a new engine.
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Old 02-07-2003, 09:44 AM
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If your radiator has the plastic end tanks crimped onto the metal core, OLDRED is correct - stop leak is only a VERY temporary fix.
(Edit - Let me add - IF it IS the seams that are leaking)

I had this happen to my 95 tbird recently, and ended up buying a new radiator because the crimped ends decided to let go. Even though it was only a small leak while the engine was warming up, the stop leak didn't fix it.

Also, the cost of having mine repaired was more than the cost of a brand new one, so, consider that as well.

Good luck with the stop leak if you go that route.
~Michael

[ February 07, 2003: Message edited by: lozinit ]</p>
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