09-22-2007, 05:47 PM
On my '92 9000CS 2.0 LPT, I feel that it's running too hot. Even on cold days the guage gets over half-way and quite often the fan runs.
The car's done 130K miles and I was wondering if there's a tendancy for the radiators to silt up over time. The other car I've got is an 18 year old Range Rover which is notorious for silting the rad. I guess similar behaviour could result from a weak water pump also, but I don't know what's more likely on a Saab.
Does anybody have any experience on this one?
09-23-2007, 02:11 AM
That generation of 9000s have a particularly sensitive temperature gauge, which can vary widely during normal driving. In fact on later models it was switched from being a direct reading to being controlled by the ECU to eliminate customer concerns over the fluctuations.
As long as the coolant has been changed at appropriate intervals there's not normally any problems with sludging but for peace of mind I would recommend changing the stat (89 deg C)- it's only £7 or so (do make sure you get a proper Saab one) and using a two part cooling system flush (Halfords do them) and then re-filling with fresh coolant.
09-23-2007, 03:35 AM
If you are going to carry out Bubbles' thoughts, you might as well back flush the radiator (take off both top and bottom hoses and connect the bottom one to a garden hose.) You'll probably need to pack round where it goes in with a bung or rags.
09-23-2007, 04:04 AM
You don't need to back flush if you use the two part rad flush- it's sufficiently aggressive to get rid of everything on it's own!
09-23-2007, 04:46 AM
Thanks chaps, I'll give it a try
09-23-2007, 04:48 AM
You don't need to back flush if you use the two part rad flush- it's sufficiently aggressive to get rid of everything on it's own![/b]