Date: Tue, 16 Dec 2003 18:38:06 -0000 From: "Mike P" <stickitnopsamranus.com> Subject: Re: Hot Running 900 T16 - blocked radiator?
-- ------------------------------------------------------------------------- Mike Pearson mike_pearsonnopsamorld.com Saab 900 T16 Aero "bjmpls" <bgmpslnopsamail.com> wrote in message news:a8b13358.0312151807.71dc238anopsaming.google.com... > "Mike P" <stickitnopsamranus.com> wrote in message news:<brht9k$26che$1nopsam63316.news.uni-berlin.de>... > > Hi, > > > > Got a problem with my 1987 T16. I've just driven 500 miles up and down the > > country over the last couple of days. When I'm in town traffic, the > > temperature gauge stays dead in the centre and the fan comes in as it > > should. However, when I get up to speeds around 85-90mph on the motorway, > > the temperature slowly climbs - it never quite gets to the red, but the car > > does get hot. If I turn the heater on full heat, the temperature will drop > > pretty quickly back to normal and stay there, no matter how hard I drive the > > car. If I turn the heater knob back to "halfway", the temperature will start > > climbing again. Turn it back up to max again, temp falls to normal. > > > > This behaviour only even happens on the motorway at high speed - around town > > the car is perfect. No steam/smoke, no loss of power. > > > > So, could this be a blocked radiator - same symptoms as my Capri 2.8 when > > the rad was silted up on that. Not sure if the C900 suffers from that > > problem as much though. Or is it the head gasket? Or did I not bleed it > > correctly when I flushed the cooling system a month or so back? > > > > Car DOES use some coolant - around a litre a month. It doesn't appear to be > > contaminating the oil, and there's no oil in the coolant. Water pump is a > > bit squeaky and it sometimes looks as though it might be leaking from > > beneath. I'll change the pump when I get back from holidays in a month.. > > Could this be also causing my hot running? Or is that more likely to be a > > blocked rad? > > > > Help!! > Knackered radiator. The damn thing is leaking. Fortunately today it was dry enough for me to spot it dripping on the floor and traced it back to the rad. I've ordered a new rad from PFS as I'm pretty sure it's that. Will also replace the 'stat at the same time. Cheers for all the advice Mke
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