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Old 03-07-2018, 10:03 AM   #1
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I've changed out my heater control valve and now it leaks from the passenger side right under the oils filter housing any help? not sure where it's leaking from I have a video I just made and uploaded it to YouTube (https://youtu.be/9-1x_BJXTE8) all the help will be Appreciated thank you so much

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Old 03-07-2018, 10:34 AM   #2
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Welcome!

Watched your video. Unfortunately, the leak you're showing is probably from the water pump.

The oil leak I was guessing was from the seal behind the main pulley, there's a crank seal under there, and an o-ring seal for the oil pump. Neither of those are difficult to change.

But it is strange that there's oil on the bottom of the air inlet pipe going to the turbo. Is there oil also on the center section of the turbo where the oil supply line connects via a banjo bolt? There are copper crush washers on either side of the oil line, they don't normally leak though.
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Old 03-07-2018, 11:38 AM   #3
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I'm not sure if it's leaking from the banjo I can't really see, but I will try next time, i just found out that the water pump is in that area so I was thinking the same thing, it must be leaking from the water pump, could it be a loose hose? I was kinda rough when I changed out the heater control valve. I also think I'm using the wrong coolant I use pentofrost E.(pink color) thanks for watching my video bro
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Old 03-07-2018, 12:47 PM   #4
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On the coolant, I don't remember ever reading anything about anyone having issues that were traced to a type of coolant or any pattern/repeated failures either.

I've been running plain old DexCool (orange) for multiple 100's of thousands of miles across maybe 10 or so different Saabs of this generation over the years and never had any issues. I've bought them with yellow and red stuff and changed whenever there was an issue that caused me to service the coolant system.

The materials aren't too exotic on the wetted side I think, iron block and aluminum head and there are only a couple of approaches, anodic/cathodic protection (tied to good grounding), lubricants, corrosion inhibition... I'd put money on any modern being coolant being okay for these, but that said, I'm not an expert. I've never seen anyone have something like repeated problems with any certain brands. Who knows though.

I think the seals on the water pumps just wear out and they start leaking.

edit: I also doubt it's a loose hose, they use the spring-type clamps from the factory that never get loose. They're a pain to get on and off, but they do work really well.
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Old 03-07-2018, 12:59 PM   #5
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lol the clamps can be a pain in the butt, it seems to leak when the car is warm/hot that's why I was thinking it was the type of coolant but thanks for the comment I appreciate your help thank you I will replace the water pump and make an up date
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Old 03-07-2018, 01:01 PM   #6
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as for the oil leak you said it might be a real behind the pully? i will check that out too, I might be able to get to it if I take off the tire?
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Old 03-07-2018, 01:19 PM   #7
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No problem, I'm sitting here waiting for some info to come in... On the seals, you have to pull off the passenger wheel, and there's a plastic splash guard that has to be removed. Use a 1/2" extension to slacken the tensioner on the belt, there's a slot on the side of the tensioner to slip a pin into it, allen key or something like that, to keep the belt slackened, then slip the belt off the PS pump.

Then you just pull out the center bolt in the main pulley, it's keyed, and just slides off with the bolt removed. The seal is right there. The other seal is an o-ring behind the big circlip that's holding the oil pump cover on, you can see it right there with the pulley removed. You can see there are 2 triangles impressed on the cover and end plate, those have to be lined up to put things back together.
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Old 03-07-2018, 02:25 PM   #8
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ok thanks I will look when I pull off the tire hopefully I have a better view of things, i will up date everything when i get it done thanks again bro
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