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#1
10-20-2004, 09:57 PM
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WOW! Never seen this before...any ideas?!
I finally got my 84 380Se running with the install of a new cap. It doesnt run very well at all! Below 2000rpm it shakes and bucks and will stall at idle. Over 2000 rpm it seems to smooth out, but doesnt seem to run strong. Here is the strange part. After 15 min of running the exhaust pipe after the cat convertor was glowing red for 2-3 feet!! BRIGHT RED! What can this be caused from? The original problem happened at highway speed and the car just died. I couldnt get it going until I replaced the cap.
Any ideas?? 
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#2
10-20-2004, 10:14 PM
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Gas cars are not my strong point but if the cat is red it sounds like it is getting to much fuel. I would suspect that it is running very rich.
__________________
2016 Corvette Stingray 2LT 1969 280SE 2023 Ram 1500 2007 Tiara 3200
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#3
10-21-2004, 01:04 AM
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It's running way too rich. Check the engine timing.
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Regards Warren Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL ENTER > = (HP RPN) Not part of the in-crowd since 1952.
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#4
10-21-2004, 11:28 AM
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Quote:
What is the long term effect of running rich - maybe not to the point of a Cat glowing red, but just too rich?
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Bernard Dallas, TX 89' 300SEL 228K 01' E320 48k
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#5
10-21-2004, 11:34 AM
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One other thing to consider - perhaps the cat is actually clogged? Check for "normal" exhaust pressure at the tailpipe. Try partially or even completely sealing the exhaust pipe with a piece of metal or stiff cardboard. If doing so has little to no negative effect, the cat may be clogged.
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08 W251 R350 97 W210 E320 91 W124 300E 86 W126 560SEL 85 W126 380SE Silver 85 W126 380SE Cranberry 79 W123 250 78 W123 280E 75 W114 280
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#6
10-21-2004, 12:15 PM
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Running too rich with eventually detroy the cat.
__________________
2002 G500 74K  1998 E300 200K and rising  1995 S600 73k  "Some people spend an entire lifetime wondering if they've made a difference. The Marines don't have that problem."-Ronald Reagan "Never tell people how to do things. Tell them what to do and they will surprise you with their ingenuity."-General George S. Patton
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