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Showing results for tags 'pressure test'.
I have a 1996 Cadillac DeVille Concour Sedan with a 4.6 Liter 8 Cylinder Northstar Engine that has 74,389 miles on it. Recently, it started leaking coolant approximately under the front center of the car. I applied a product called BARS LEAKS RADIATOR HEAVY DUTY LEAKS additive and it worked for about two months. The problem arised again recently and I did the same thing but the results was unsuccessful. The tank had become half filled with these pellets and now the coolant is leaking at a much faster rate then before. I was wondering if there is a way to replace the leading tube on the bottom to keep the cost down or if I have to replace the entire system all together? I have low a/c compressor readings when I try to turn the fan on to keep it from overheating while I'm driving but that fails. The highest temperature ever recorded while driving is 258°. It still purrs like a cat without any engine noise but I noticed that more coolant LEAKS out when it's in idle. Can someone Please help me? I don't want to have to sell HER.