My recently purchased '75 99 L is having a bit of a bizzare overheating problem. first thing temp gauge will keep climbing until it hits the red, then drops to norm after a few secs, then it's fine for the rest of the day. Sticking stat I thought, replaced stat - no difference. I used a Quinton Hazell one, bad idea??

Also no bleed nipples anywhere on this '75, weird..

Wierd one that - never experienced it on my 1975 99L. Could be a dicky gauge/sender/connection possibly? Aftermarket stat shouldn't hurt - the Saab peculiar 3 position stats weren't introduced until some time after '75 so a simple open or closed one will work fine.

My 75 has a bleed nipple mounted up near the heater box. A 74 I had also had one there so I think yours should have one too.

Might be worth flushing the cooling system on the off chance that there's a strange blockage somewhere?

Julian

PS. Any relation to Mike on Sabnet???

Hi Julian!

Flushed cooling system, didn't make much difference, didn't seem particularly dirty anyway. Also noted the thermostat they supplied was 89C, possibly a bit high? In normal driving it remains slightly above half way.

Another problem has cropped up, brake warning light remains on, fluid level OK and brakes work fine. The 75 is not like my other saabs, I think it works on some sort of pressure difference?