Re: Sudden surges in power - transmission issue? - Saab 9-5 Bulletin Board - Saabnet.com
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OK, unless DI is defective which is unlikely, you should search past posts for "throttle body" and "vacuum lines" and see if you can better line up the symptoms. When my wife's 9-5 was going south, she experienced surging and came near to (dangerous) stalling at busy intersections. It can be an easy DIY even if you don't have a big shade tree. The TB's can sometimes be rebuilt or you can buy new OE. No point in a used one unless it's nearly new. The internals on the TB side get fried by the immense heat given off by Thor's Turbo 4 and start to go flakey. That's my two cents. Contemplate the cheapest possible solution and go up in SS$. Or it might be cheaper to bring it to a dude that is familiar with with the 9-5 or at least Saab trionic. BTW, the TB is a common issue in older 9-5's. If you DIY, don't forget to buy a new O ring that sits on the bottom. Please let the forum know what happens at the end of the day.
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