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Discussion Starter · #1 ·
Hi All,
My 95 9000 aero's turbo bounces under heavy load. Acceleration is fast into the upper end of the boost but when it peaks it immediately drops back down to the into the low end of the boost and then climbs back up the the top again, In a fairly fast fashion..kinda like riding a bucking horse. All vacume hoses have been replaced and I cant figure it out. Have been reading here for a while and learning alot.
Thanks in advance for your time,
Dino
 

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Welcome to Saabscene.

Certainly sounds like a faulty APC solenoid (that's the device attached to the radiator shroud with 3 hoses leading from it). I'd start by swapping it for a known good one and take it from there.
 

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Discussion Starter · #4 ·
Certainly sounds like a faulty APC solenoid (that's the device attached to the radiator shroud with 3 hoses leading from it). I'd start by swapping it for a known good one and take it from there. [/QB][/QUOTE]

Any problem with trying to find a used one?? New price was $230 US

Thanks,
Dino
 

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Originally posted by Dino
Any problem with trying to find a used one?? New price was $230 US[/b]
Hmm 'swap for a known good one' is one of those easier said than done phrases isn't it
. Always handy to have a friend with a similar car to yours... Failing that try a specialist or even main dealer who might let you test out the theory before you pay out $230 for the part and find it was something else at fault.
 

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Discussion Starter · #6 ·
The wastegate arm seems fine But I really do not know what I am looking for there.... I have noticed a "swishhhhh" Sound after I engage the clutch going into second and third on a speedy roll off....I assume its the wategate opening relieving pressure...anyhow, the dealer has had the car twice and could not figure it out so I will bite the bullet and try it..the dealer said there are no returns on parts.
Thanks for your help!
Dino
 

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My friends Aero had a faulty APC solenoid and the cheapest way is to fit a manual bleed value about £40 - so I guess thats about $60. They are easy to fit but you will need to get a garage to set it up as you will want to set it to 1 bar pressure you need a specialist tool to do it. If it is set too high you will put too much strain on the car and higher still the fuel cut out protection system will cut in as you are having now.
 
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