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Kajor Vacuum Leak 900

posted by  someone claiming to be 960 Brickster on  Mon Sep 28 07:58 CST 2009 [RELATED]

I think the cause is a major vacuum leak, possible in the engine compartment. I had the breather box replaced on Saturday, and there were lots of vacuum lines off and redone then. Plus I cleaned the IAC, flame trap. Runs fine, good idle, no codes. But nothing coming from the vents at all.

Today, I did an eyeball check on the IAC, pressure regulator, evap. egr, air pump, and the one hose that I can see from the breather box, on top. All seemed to be snug.

The only thing I did differently was use worm drive clamps on the intake instead of the Volvo band clamps. The local Volvo dealer does not carry the band in that size because the mechanics don't like them, and the Volvo guy I used put good quality worm drives clamps on instead. It may be possible that the breather box did not seat properly, but not sure how to check. He is a top notch mechanic, and I trust his judgement.
Assuming it is a major vacuum leak, what is the best and cheapest/easiest way to test for it? Smoke test?

Ideas appreciated here. The Volvo guy I took it to is 1.5 hour drive away. Not looking forward to a return trip.






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New Nothing Coming From Air Vents? 96 960 [900]
posted by  someone claiming to be 960 Brickster  on Sun Sep 27 13:03 CST 2009 >


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