Date: Fri, 5 Nov 2004 11:19:42 -0500 From: "saabturbo" <saabturbonospampam.z> Subject: Re: Running hot
"Sleeker GT Phwoar" <carl.robsonnospamcing-czechs.com> wrote in message news:MPG.1bf5ab0ddc07ad2f98a7d2nospam.individual.net... > In article <2v17a2F2f0jm7U1nospamberlin.de>, grunffnospam.com says... > > Dick Slease wrote: > > > > > I just bought my first Saab, a 1987 900 Turbo Convertible with 131,000 > > > miles, one previous owner (now deceased). Dealer checked it out, said > > > everything is working fine. And it seems to be, except it runs hot, often > > > time right up to the redline. Is this a normal thing for this car? What > > > else should I watch for? I understand regular service is essential, and > > > from the records that came with the car that has been done. > > > > > > As others have said, the thermostat is the most likely cause. However, > > it is useful to determine when it overheats. Is it when you are sitting > > in traffic, or when you are using the engine hard (e.g. on the motorway > > etc.)? > > > > If it overheats most when you are sitting in traffic, then it could be > > that the fan is not cutting in. This could be because the fan motor has > > failed, or the fan thermo switch has failed. > > > > > Yep, what everyone else says. > > Make sure the stat fitted (and the one you replace it with) is the > correct temp range, and a genuine Saab 3 stage one, 1)closed, 2) open > with heater 3) open without heater. > > > Also before replacing the rad fan or thermo switch, disconnect the > switch, and touch the terminals together with a piece of wire, and see > if the fan runs, then change try cleaning the terminals on the switch, > reckon ect the wires, and run the car upto temp make sure it switches > out. > > Andy creamy mess in the oil, or oily skum in the coolant? > -- > "Sorry Sir, the meatballs are Orf" > The poster formerly known as Skodapilot. > http://www.bouncing-czechs.com One more hot tip for you: FIX THIS IMMEDIATELY! That thing continues to run hot or overheats and you might end up looking at a head gasket job! I certainly do not like the sound of "often time right up to the redline" ! Over repeated hot operations the head could possibly warp..... If it turns out that the thermostat, thermostatic fan switch, and fans are all working then change the radiator. Overtime they tend to get clogged and not allow efficient circulation/cooling.
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