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Date: 11 Jun 2005 02:47:16 -0700
From: "colnalu" <bob4nospamnet.se>
Subject: Re: Overheating=(


Malt_Hound wrote: > es wrote: > > hi my 1990 9000 cd turbo is overheating the fan is working theres no > > leaks but it overheats in traffic not on the highway. idles good runs > > good but it really gets hot when the car is not moving. it was good in > > the winter but now that its hot out it Overheats. > > > > > > what could it be? > > > > I have read all of the responses you have received thus far and nobody > has given you the correct advice yet. The key to diagnosing your > problem is something you stated above: "overheats in traffic not on the > highway." ---8<---cutting rest I have had same behaviour out of a 1983 900GL (normal temp when moving, overheating when standing). Fans kicked in OK, thermostat was new, coolant clean, even temp across the radiator, etc. In my case I started poking lightly at the cooling fins that zigzag between the cooling pipes in the radiator. They more or less turned to dust, badly corroded. Check the cooling fins, by running your fingers lightly across them, takes about 15 seconds to do. You might be lucky and find that this is the cause. Badly corroded fins cannot dissipate heat nearly as well as healthy ones, since so much of the metal has been eaten away. It's possible that someone here has mentioned this but I don't have time to check the whole thread, sorry. /Robert

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