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Hi guys.
Thank you all SO much. I got it! I bought about 10 feet of 4mm vacuum hose to start off with. The long one from the TB to close to the grill (I think it goes down to the turbo?) was totally rotten, holes everywhere. Then I changed the 2 that go to and from the PCV valve to the TB. They were fine. I did notice the PCV valve was aftermarket and quite small compared to the photos online. Should I plunk down $15 and get a known good one by the way? I did blow into it and it works one way but not the other as it's supposed to.
John, you were right! That the vacuum tubes may be a good place to start, and i'm glad i did, but really it wasn't until i figured out where the other kinds of big 2" hoses were that I found the true culprit. UNDERNEATH the car (basically right next to the oil filter and behind some intercooler lines --- i think?) was a 90 degree elbow hose about 2.5" diameter and about 8" long (4 and 4 bent 90 degrees). that goes up into a ... help me out here? intercooler metal line maybe? Anyway it has two hose clamps on it top and bottom. And the top one was off. Not a little bit, but COMPLETELY off. I could see right up into the metal intercooler tube (or whatever that elbow clamps onto). the elbow was just plain not on there.
Luckily it was still on my car because of the lower clamp. But that was definitley where the big whoosh of air was coming from and why my turbo had no oomph, and my car had no boost and couldn't accerate or climb hills.
I put it back on after inspecting it. It was cracked on the OUTSIDE only, not the inside. It was so-so. Is this an expensive part? I took a picture but can't figure out how to upload. Part number is:
SAAB 49 01 914 (CM W8 30)
Anyway the hardest part, and it was very hard by the way, was to find a way to get a screw driver in there to tighten down the hose clamps again. It helped to remove the lower one and push one of the pipes away. It might have helped to take the oil filter off, but I didn't have oil handy to do an oil change so i just made do.
About an hour later, I took it for a spin with 4 new vacuum hoses, that suspiciously small PCV valve, and a lower (intercooler?) elbow hose that was now properly seated, and... drum roll.... BOOM! My baby was back! Full throttle. Full boost. No whistling. Amazing.
Thanks for all your help! This group is amazing. And do let me know those 2 things:
a) should I get a proper larger sized PCV valve?
b) should I replace that bottom elbow or is it cost prohibitive and there's no reason to if all that happened was it fell off?
A very happy Sara.
posted by 67.5.243...
, Sat, 21 Jul 2012 09:33:42
, Thu, 19 Jul 2012 00:27:09
, Thu, 19 Jul 2012 11:28:36
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