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At a loss with my 99 Viggen.
Experience small coolant leak (about 6 to 8oz/100mls). Car has 80Kmls and replaced water pump at 70Kmls. Identified issue when Low Coolant signal turned on, though no overheating. Level was low when engine hot (tank level sensor signals correctly), but when I opened the expansion tank cap after the engine cooled down, there was still pressure in the system and the liquid level recovered to half the required cold level, thus clearing the low level signal. Situation repeated itself a few days, added a little fluid every other day, then replaced the expansion tank cap (some documentations call it the radiator cap, but I believe this is the only cap in the cooling circuit). Still observing same small loss of coolant, no puddle on ground, no visible leaks around expansion tank except a few drops on a ledge between block and clutch at the front left corner of the engine. There is no more residual pressure in the circuit once the engine is cold, so could it be a leak developing at higher pressures (cap is rated for 20PSI, but I don't know how much pressure the system develops when running) when the coolant gets hot? Can't see anything in the oil nor any smoke from exhaust pipe and car runs fine. My dealer went out of business and have not found yet a reliable alternate repair shop. Any suggestion is welcome.
posted by 108.12.3...
, Thu, 31 Oct 2013 10:05:40, Thu, 31 Oct 2013 15:22:51, Tue, 5 Nov 2013 08:03:47
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