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#1
11-25-2003, 07:30 PM
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4.5 runs rough after getting off interstate
What would cause that? The car is a 1972 280SEL 4.5. My friend's dad is in it now on his way to Ft. Wayne since he just bought it. He said it runs great on the interstate, but after getting off, it idles rough, etc. Hasn't stalled.
Thanks David
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_____________________________________________ 2000 Honda Accord V6 137k miles 1972 300SEL 4.5 98k miles _____________________________________________ 
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#2
11-25-2003, 08:18 PM
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Several possiblities:
Vac leak hot (probably manifold halves) Set too lean, or vac leak, causing the plugs to overheat (they will be white, not tan if you pull them before idling much) Dirty fuel filter -- this is very likely if not changed recently Dirty points Oil on the trigger points. Mine runs poorly cold, flies hot, never had a problem with poor running after a freeway run. I'll be if Fr. Wayne IN tomorrow through Sat morning -- PM me if you want to get together. Peter
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1972 220D ?? miles 1988 300E 200,012 1987 300D Turbo killed 9/25/07, 275,000 miles 1985 Volvo 740 GLE Turobodiesel 218,000 1972 280 SE 4.5 165, 000 - It runs!
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