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Reload this Page 2004 A4 1.8T Lacking power and smoking.

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Old 07-14-2010, 09:11 PM   #11
Louis Yong
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Default Re: 2004 A4 1.8T Lacking power and smoking.
I can hear some dull "rattling sound" - seems to be coming from the top right side of the car - sounds like "loose fitting" ? It happens when I am driving on "uneven roads" - anyone has similar experience?
Please advise!

Thanks!

Loo
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Old 08-08-2010, 10:34 PM   #12
audinator
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Default Re: 2004 A4 1.8T Lacking power and smoking.
Checked CEL = Cat below threshhold
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Old 08-08-2010, 11:07 PM   #13
Louis Yong
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Default Re: 2004 A4 1.8T Lacking power and smoking.
Quote:
Originally Posted by audinator View Post
Checked CEL = Cat below threshhold


Not sure what you mean ! Are you just kidding me?
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Old 10-28-2010, 01:08 AM   #14
audinator
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Default Re: 2004 A4 1.8T Lacking power and smoking.
Codes are Boost pressure not sufficient, Cat below threshold and n75 open. Ran a readiness test and the following failed; egr system, 02 sensor, ac, catelyst.. time to trade in?
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Old 11-04-2010, 01:46 PM   #15
T&A Johnston
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Default Re: 2004 A4 1.8T Lacking power and smoking.
Is there any oil on the dipstick. Has the oil minimum light, or pressure light ever come on?
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Old 11-04-2010, 02:16 PM   #16
audinator
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Default Re: 2004 A4 1.8T Lacking power and smoking.
Yes, the OIL light has come on, there is oil I change it regularly, I highly suspect the cat converter. Expensive part to eliminate
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Old 11-04-2010, 02:16 PM
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