Hi folks, '84 Porsche 944 160K miles. Regular good maint. Since summer has arrived the car is now running at or slightly above the 3/4 mark on the temp gauge. When it does this it starts to idle rough. The tach remains constant however the car shakes at idle when it is hot. Thermostat recently replaced, the fan relay in the radiator is OK, fans engage at 80 cel. Thing is, it doesn't act up immediately after I change the oil. It does fine for about 100 miles, and then it starts shaking again. It has 10x40 oil. I have been told that it may need a bleed on the sealed cooling system, maybe a partial blockage somewhere in the cooling system, or it may be an idle adjustment thing. It is extremely expensive to go the 'trial and error' route. I am just looking for some input or guidance from folks who may have seen this type of symptom in the past. Thanks for you time. Rad
have the same problem?
Thursday, July 6th, 2006 AT 9:22 PM