944GS Posted September 19, 2021 Report Share Posted September 19, 2021 I’ve had my 2005 S for 4 weeks and had it serviced on Monday at my local Porsche specialist. The rest of the week was spent doing a few small jobs on it like replacing the roof microswitch but mainly driving the car which was running well. The last time I drove it there was a squealing noise for a minute or two but it went away, I stopped after around a mile then drove back home to change cars but had a rattling noise instead of the squealing. I went to check on the car today, looked at the drive belt which seems ok (that was also done at the service) so I started it for a few seconds then switched off. There’s now some coolant dripping onto the road, it’s level is around halfway between minimum and maximum. The noise only appeared after a couple of minutes, it’s not there when idling and went away when moving if I put the clutch in. I’m no home mechanic so will phone my indy tomorrow but does this sound like the water pump and will I be ok to drive the 20 minutes to him, engine temperature was normal when this happened and I’ll obviously check coolant levels again too. Quote Link to comment Share on other sites More sharing options...
Nobbie Posted September 19, 2021 Report Share Posted September 19, 2021 It does sound like the water pump. The squealing is probably the bearing starting to fail which then allows water to push past it. Not sure about the noise going away when pushing the clutch in. Top it up and driving gently at low revs to the garage should be fine. If you’ve removed the panel to inspect the belt, you might be able to feel some play on the water pump pulley if you get a lever of some sort in there. 1 Quote Link to comment Share on other sites More sharing options...
944GS Posted September 19, 2021 Author Report Share Posted September 19, 2021 (edited) 12 minutes ago, Nobbie said: It does sound like the water pump. The squealing is probably the bearing starting to fail which then allows water to push past it. Not sure about the noise going away when pushing the clutch in. Top it up and driving gently at low revs to the garage should be fine. If you’ve removed the panel to inspect the belt, you might be able to feel some play on the water pump pulley if you get a lever of some sort in there. Thanks for that, it was the rattling noise that went away when using the clutch, it made no difference to the squealing noise but there was no rattling at that stage. Edited September 19, 2021 by 944GS Quote Link to comment Share on other sites More sharing options...
Nobbie Posted September 19, 2021 Report Share Posted September 19, 2021 6 minutes ago, 944GS said: Thanks for that, it was the rattling noise that went away when using the clutch, it made no difference to the squealing noise but there was no rattling at that stage. Wonder if that might just be some effect of reducing the load on the engine allowing another resonance to setup somewhere. I noticed an increase in noise on mine on my way to a spirited run. Thrashed it for a couple of hours and then the water all dropped out when I stopped for a chat and turned the engine off. Got it recovered and the water pump pulley was very loose by that stage, but it held up ok for 2 hours, so yours should be ok for a gentle trip to the garage. Quote Link to comment Share on other sites More sharing options...
944GS Posted September 24, 2021 Author Report Share Posted September 24, 2021 I decided not to take the chance so had it recovered to the garage, the water pump was clearly past its best but hadn’t started to destroy itself yet so new one fitted and all ready to enjoy driving again in time for the weekend. 1 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.