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| Classic Saab 900 Workshop Classic Saab 900 (1979-1994) Technical Forum. |
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#1
13-08-07
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Cooling Fan
Hey Guys,
I have a 1991 900 base model. I have a question about the radiator cooling fan. OK, the fan on the left is for AC, correct? Sorry for being so ignorant, but this does not help cool the radiator/engine any does it? I am just trying to eliminate the reasons why my car might be heating up a bit in stop and go traffic. The temp gauge goes about 1/4 way up, so I think this is a little excessive, don't you? I have replaced the thermostat, radiator hoses, new radiator fluid. The cooling fan on the right kicks on but it still does not seem to cool it down like it should. Thanks Lisa 
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#2
13-08-07
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Well, my a/c fan has worn out and the car does get a bit too hot in traffic.
So, I'm fitting a new fan tomorrow (NOT Saab part!). I'll let you know what happens. The mechanic did say that the a/c fan is important for the entire cooling of the system.
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#3
13-08-07
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OK, another dumb question. I do not use my AC, as the belt was missing when I bought the car. So, therefore, I am not sure if the AC compressor even works. With that being said, does the compressor need to work to kick on the AC fan?
Thanks Lisa
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#4
13-08-07
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go to www.townsendimports.com and there is a section on how to make the ac cooling fan run with the other fan without the ac on. You may also have a head gasket going out too. Quite common on the 2.1 eng. which yours is. The new improved head gasket rerouts some cooling ports and makes it run cooler. It did on mine at least.Is there any oil in your coolent tank?
__________________
"SAAB people are the best." Glenn Beck
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#5
13-08-07
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There is absolutely no oil in the coolant tank/reservoir. The car has great compression and no oil looks that I can see. There is no smoking from the exhaust, or any "funny" sounds from the engine. The car runs great, other than warming in traffic.
Thanks Guys for your continued advice.
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#7
13-08-07
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Have you checked the ac system to see if it still has gas in it? and if the compresser will turn by hand. If so I would put a belt on it and try it out. I love my AC!
__________________
"SAAB people are the best." Glenn Beck
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#8
13-08-07
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Great Link For Cooling Fan Rewiring Wo Ac
http://townsendimports.com/Web/cooli...htempsbpg1.htm
GURU, THANKS SO MUCH FOR YOUR HELP! I will give this to my mechanic!
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#9
13-08-07
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Quote:
Be careful when you're doing this - hot coolant is - well - hot and burns like the dickens - make sure the tubing is secure on the nipple, unobstructed and is fixed in the catch container so it doesn't start whipping around spraying everyone nearby with coolant. Having had a hose burst while looking under the hood of a customers car (back in my college days when I made beer money pretending to be a mechanic) was an experience I wouldn't wish on anyone (outside of a few politicians and perhaps the odd CEO or two  )
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#10
13-08-07
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YEP, it was bled. I tried to personally bleed it, but could not get a steady "flow". So, I took it to a mechanic, whom bled it, and it never seemed like there was any air in it. He determined my "jumpy" temperature gauge was caused by the temp sender wire, but that is not my problem now. Now, it's the overheating in stop and go traffic. I will try having the AC fan wiring rerouted so that both fans blow (now only one does because my AC is not currently functioning, due to a belt missing). I am not sure if the compressor works, as the belt was off when I bought the car. I guess I could buy the belt and replace that first, and see if having the AC run (thereby running the AC fan) will help cool the engine.
Thanks
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#11
13-08-07
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Quote:
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#14
13-08-07
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Quote:
__________________
Turbo allows the valiant who has appeared at the wheel SAAB to gain momentum for 200 km/h Charm SAAB Turbo also that it to you not bad Porsche on it it is possible with speed of pregnant turtle feeling itself in full comfort which by the way our hero obeys a rudder reliably and confidently the truth management hardly will twirl a steering wheel by one finger uneasy. Without the hydraulic booster quickly enough perishes a steering shaft, but to change its hemorrhoids from the most fierce
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#16
13-08-07
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If it doesn't go above 3/4 on the gauge in traffic on a hot day, it's working normally and needs no repair.
__________________
Corporations are people! If you prick them, do they not bleed? If you tickle them, do they not laugh? If you poison them, do they not die?
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#17
13-08-07
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Quote:
__________________
James Bond shifted down into third gear, drifted the Saab 900 Turbo into a tight left-hand turn, clinging to the grass shoulder, then put a fraction more power to bring the car out of the bend. Last edited by Matt88S; 13-08-07 at 08:36 PM.
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#18
13-08-07
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Quote:
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#19
13-08-07
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Quote:
__________________
Turbo allows the valiant who has appeared at the wheel SAAB to gain momentum for 200 km/h Charm SAAB Turbo also that it to you not bad Porsche on it it is possible with speed of pregnant turtle feeling itself in full comfort which by the way our hero obeys a rudder reliably and confidently the truth management hardly will twirl a steering wheel by one finger uneasy. Without the hydraulic booster quickly enough perishes a steering shaft, but to change its hemorrhoids from the most fierce
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#20
14-08-07
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Quote:
__________________
Corporations are people! If you prick them, do they not bleed? If you tickle them, do they not laugh? If you poison them, do they not die?
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