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Symptoms of impending throttle body failure?...
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Posted by MI-Roger [Email] (#882) [Profile/Gallery] (more from MI-Roger) on Thu, 30 Aug 2007 10:32:49 Share Post by Email
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I have noticed a non-linearity of acceleration with my 2000 9-5 recently. It feels as if there are dead spots in the throttle when accelerating away from a stop. Not severe enough that a passenger would notice them, but something that has not been there before.

I cleaned the TB earlier this summer (before the problem appeared) and lubricated the butterfly pivots. Plugs are changed every 10,000 miles (6,500 miles on current set). A 20oz bottle of Techron is used at 10,000 mile intervals also so injectors should be fine, fuel filter has ~26,000 miles on it.

Maybe it is just a sign of age since my car has 206,500 miles, but I would prefer to change out the TB (or MAF) before it fails if my symptom is indicative of impending doom.

Thanks,

posted by 198.208.25... 
_______________________________________
Saabs owned:
2008 9-5 Aero Sedan, sold at 227K miles
2006 9-3SC 2.0T - Wife's daily driver
2000 Viggen Convertible - Sold May, 2022
1964 Quantum IV Formula Car - Retirement project
2000 9-5lpt Sedan, sold at 318K miles
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