Results 21 to 25 of 25
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29 December 2013 #21
Marty Jackson Saab Addict
- Join Date
- 17 May 2013
- Location
- London Ont. Canada
- Posts
- 641
- Saab(s)
- Sadly a Volvo XC90
Could the cat be plugged?
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30 December 2013 #22
Kenny Saab Fan
- Join Date
- 30 Dec 2013
- Location
- Lawrence
- Posts
- 41
- Saab(s)
- 2005 SAAB 9-5 Aero MT
Hmmm - this sound like a issue I have with a 01 SAAB 9-5 SE V6 -
I was getting no boost (lag or no power from turbo) The issue ended up being the Brake booster. Since the car has a remarkably quiet cabin I didn't notice the light hissing. You wouldn't here it even if you shut off the radio and the A/C blower. The seal front the inside of the pump at the end of the Brake pedal was leaking. Replaced Brake Booster - changed spark plugs (second change with in 4 months)....full Power restored....
My theory is that if you have lack or power (from lack of boost)
It could be the following:
1. Turbo Failure -
2. ECU - boost controller
3. Vacuum Leak
4 Turbo Inter cooler air leak (Do a Pressure test) Check hoses
5. Turbo flange that connects the Intake pipe to the turbo - (make sure that is tightly secure)
You really need to check you vacuum pressure and make sure its holding well under load (while driving)
BTW - Does the needle for the Boost gauge only get to almost the middle of the yellow? If it does that is a indication of loss of vacuum pressure.SAAB
Keep Calm my friends
and Apply BOOST
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11 January 2014 #23
Luis R Saab Enthusiast
- Join Date
- 24 Sep 2012
- Location
- Vineland, N.J.
- Posts
- 52
- Saab(s)
- 03' 9-5 Linear wagon
So did you find the issue? We all would like to know what you found.
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12 January 2014 #24
- Join Date
- 11 Jan 2014
- Location
- Edmonton, Alberta, Canada
- Posts
- 42
- Saab(s)
- 2000 9-5 Aero, 2002 9-5 wagon, 2007 9-3 Aero, '93 9000 CSE, 7 vintage Saabs
Sounds like your problem is way beyond your capabilities to properly diagnose. That's why the offer came from a competent Saab technician.
Low boost, or baseline boost, is a symptom of boost control...seeing as you've ruled out a plugged cat, etc. If you've scanned your car with a generic OBD2 scanner I can attest to the fact that generic scanners OFTEN miss codes that would be displayed with the factory tool. Generics either miss completely or display random erroneous codes.
Mark
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18 January 2014 #25
- Join Date
- 20 Oct 2013
- Location
- CA, USA
- Posts
- 17
- Saab(s)
- 2003 Saab 95 arc 3.0
Vacuum leak test in order. Go on Youtube.com to learn how to. Listen to hissing sound, locate the prob. Today, I fixed mine. The double O-rings on the sensor on black plastic in-take pipe were slightly sliced. cold air was being sucked in at the sensor. Sending wrong message for rich fuel/air. After replacing o-rongs, pulled fuse for ECU #17 for 15 minutes on my 2003 9-5 arc V6. It improved a lot. Gas mileage improved.