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Plugged catalytic converter?..... Posted by MI-Roger [Email] ![]() ![]() |
Has anyone had an experience with a plugged converter on a 9-5? I seem to lose more off-the-line oomph each passing year, needing the turbo to spool up before acceleration really starts. I am wondering if it is caused by a restricted converter due to my car's accumulated miles - 166,600. Acceleration from highway speeds seems little affected.
I change the plugs each 10,000 miles, re-gap each 5,000 miles, use Techron or Lucas fuel conditioner at each oil change. Run mid-grade fuel in winter months and premium during summer. The engine is sludge free (I checked when replacing the head bolts), the IDM was replaced last week, and I have no smoke (or mysterious oil loss) indicating a worn turbo.
Any other ideas.....besides natural aging? Thanks.
posted by 68.40.14...
_______________________________________ 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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