Question about 1995 Oldsmobile Aurora

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Over heating when traveling at lower speeds

I have a 1995 mazda 626 v6. The problem I have is when traveling at lower speeds my engine starts heating.(indicate on the temp. meter) But if I start going fast the meter goes back. Recently I changed my termo-stat. My guess is I need a new radiator, because my coolent looks dirty. Please help me on this problem.

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Your water pump is junk - Mazda uses ford parts and they are known for the vanes on the pump deteriorating ( when you go faster what is left of the pump starts working and circulating the coolant, going slow there is not enough vane left on the pump to circulate the coolant efficiently) - a good flush wouldnt hurt either, //// to put it into perspective> kind of imagine a fan with the blades shortened, on low no air is really circulated - but put it on high and it may push as much air air it normally would on low, same thing is happening under your hood!

Posted on Feb 05, 2009

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