2.8T coolant leak, not the tank (for once) - SaabCentral Forums
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  #1  
Old 11th April 2012
ACBarnett ACBarnett is offline
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Default 2.8T coolant leak, not the tank (for once)

I've had a 2007 9-3 Aero that just a couple days ago began to suffer from a pretty severe coolant leak, something totally out of the blue. The only thing that possibly precipitated it was that I drove about 100 miles the first time I got the "fill coolant" warning. I know the car has had the coolant tank/software upgrade, but I am curious about what else this could be.

Reading around I've seen people relate this issue to water pump seal failures, but the area around the water pump (between the cylinder banks, on top of the engine, no?) seems clean, and the leak looks to be further forward, near the radiator. Looking under the car when it's running, the coolant leak is a very steady drip that seems to be coming from above the front end of the passenger-side frame rail, well forward of the engine itself. Thanks to all the plastic underbody panels, I can't see exactly where this leak is coming from.

What I was wondering is if anyone else has seen something like this happen with the v6, and if it's likely something as simple as a worn-out hose or something more expensive like a busted radiator or a dead water pump.

Thanks in advance for any info you have!
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  #2  
Old 11th April 2012
kamilp kamilp is offline
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Quote:
Originally Posted by ACBarnett View Post
I've had a 2007 9-3 Aero that just a couple days ago began to suffer from a pretty severe coolant leak, something totally out of the blue. The only thing that possibly precipitated it was that I drove about 100 miles the first time I got the "fill coolant" warning. I know the car has had the coolant tank/software upgrade, but I am curious about what else this could be.

Reading around I've seen people relate this issue to water pump seal failures, but the area around the water pump (between the cylinder banks, on top of the engine, no?) seems clean, and the leak looks to be further forward, near the radiator. Looking under the car when it's running, the coolant leak is a very steady drip that seems to be coming from above the front end of the passenger-side frame rail, well forward of the engine itself. Thanks to all the plastic underbody panels, I can't see exactly where this leak is coming from.

What I was wondering is if anyone else has seen something like this happen with the v6, and if it's likely something as simple as a worn-out hose or something more expensive like a busted radiator or a dead water pump.

Thanks in advance for any info you have!

ive had the same problem, its a brass 90 degrees elbow. i had the dealer replace it when it was under warranty but after they replaced it, it still leaked and my tank went low. dealers suck but im sure thats your problem. if you remove the air box youll see it. its shinny and hard to miss.
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  #3  
Old 12th April 2012
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Abarth Abarth is offline
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Recently had a similar problem, it was the overflow bottle cap. The valve inside of it would not hold pressure allowing the fluid to drain down the drain hose to the underside and it drained out the mostly on the passenger side. Also found that the cap used on the Cadillac Srx using the 2.8 Turbo is a perfect fit for half the cost of the SAAB OEM one.
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Old 12th April 2012
ACBarnett ACBarnett is offline
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Originally Posted by kamilp View Post
ive had the same problem, its a brass 90 degrees elbow. i had the dealer replace it when it was under warranty but after they replaced it, it still leaked and my tank went low. dealers suck but im sure thats your problem. if you remove the air box youll see it. its shinny and hard to miss.
Does the part simply fail or is it just like a slipped hose or something? I refilled the coolant tank yesterday and even with the engine off there was a pretty steady drip of cooland from that same right front corner area. As for the coolant tank/pressure cap, I've chedked that area pretty thoroughly and I've found no signs of a leak so far.
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Old 12th April 2012
Phikshin Phikshin is offline
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Theres 2 silver pipes going into your turbo. Its more than likely the seal on the lower one. It leaks and runs down the pipe and drips off usually resulting on staining on the bottom of the tranny and front mount area. These are common. Ive also seen the welds on these pipes break which is a pretty large job to replace.

The seal is basically 2 washers connected that fit over each side of the pipe.
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Old 12th April 2012
Aspen Aspen is offline
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I have been losing coolant for months. The turbo seals were replaced, then the pipe was replaced, still losing coolant. No drips and no visible signs of loss even with a dye and blacklight.
Don't know where it is going. I am thinking maybe a need a new expansion tank cap.
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Old 12th April 2012
kamilp kamilp is offline
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Quote:
Originally Posted by ACBarnett View Post
Does the part simply fail or is it just like a slipped hose or something? I refilled the coolant tank yesterday and even with the engine off there was a pretty steady drip of cooland from that same right front corner area. As for the coolant tank/pressure cap, I've chedked that area pretty thoroughly and I've found no signs of a leak so far.
If you take off the air box and just run the car without the filter box maybe you will see where it's leaking from. Because I've never had it leak while sitting still, it was only while the car was running and being driven
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Old 13th April 2012
ACBarnett ACBarnett is offline
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I ended up pulling the airbox today and I found nothing obvious, so I just decided to have it sent to the mechanic for a better, more thorough look.
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Old 8th May 2012
mawingo mawingo is offline
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Quote:
Originally Posted by ACBarnett View Post
I ended up pulling the airbox today and I found nothing obvious, so I just decided to have it sent to the mechanic for a better, more thorough look.
Any update on your findings? I have a similar issue. I can smell the coolant from the airbox area but see nothing obvious. Expansion tank area seems ok.
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Old 18th May 2012
mawingo mawingo is offline
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What was the parts and labor breakdown on that $1000? I see water pumps on rock auto are <$100. My problem may be the same thing, getting it looked at tomorrow.
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Old 18th May 2012
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The pump is OEM SAAB not a Chinese knockoff and was $287 the collant was $$ as is the labor. I also found a motor mount that is being replaced at $215.
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Old 18th May 2012
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And the thermostat is $273, it comes in it's own housing.
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Old 19th May 2012
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SoCalHarley SoCalHarley is offline
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So how many hours labor just for the waterpump replacement. Sounds like the 1000 is mostly parts....
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Old 19th May 2012
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Stampe Stampe is offline
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Quote:
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So how many hours labor just for the waterpump replacement. Sounds like the 1000 is mostly parts....
I don't know the hours, but mine cost me just under $1,100.
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