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I, for one, have a 2002 Saab 9-5 and haven't had any engine failures. The only major problem I had was the engine would occasionally die while first starting up in cold weather. From what I understand, that was caused by a tear in the stock diverter valve's diaphragm which is easy and, by Saab standards, cheap to fix anyways. 

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I'm sorry to hear about your plight. I hope there are some lemon laws in your state/county so you have some sort of recourse. I am slowly learning about my Saab – with the help of the great online community and the WIS. I am sorry to say I haven't touched any other vacuum system other than these hoses associated with the turbo/ignition (and that the couple at the back for the coolant diverter).

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Tobias Collins
November 7, 2016 10:13 am

Hey man. I'm probably going to have to replace my vacuum lines, at least the ones for the brake booster. Did you do that one and if so, were you able to buy the check valves separately? What should I use to get those clips out to remove the line? I do have fuel line and AC clip removers. Not sure if those are compatible.

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