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#1
01-08-2009, 01:03 PM
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Could a cracked Rotor Suppressor Housing cause misfire?
Could this crack be the cause of all my misfire problems? I found her while taking off my head to do the gasket
 What do ya guys think? Obviously I'm gonna replace it....just curious. Little bugger is $58  !
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2016 Monsoon Gray Audi Allroad - 21k 2008 Black Mercedes E350 4Matic Sport - 131k 2014 Jeep Wranger Unlimited Sahara - 62k 2003 Gray Mercedes ML350 - 122k 
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#2
01-08-2009, 01:13 PM
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Possibly.....but I'd bet on dirty/fouled spark plugs or bad wires or a weak coil before that cover......
On my 300E the misfire was from coked spark plugs. Cleaned them all off real good and adjusted the gap, and now it runs smoooooth.
__________________
-diesel is not just a fuel, its a way of life-  '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k)
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#3
01-08-2009, 01:14 PM
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Trust me I've gone through all the basics beyond belief lol. The entire ignition system is practically brand new. This housing is basically the only thing I have not replaced.
(I feel silly as to have missed the crack when I did the rotor + cap assuming it has been cracked all the time)
__________________
2016 Monsoon Gray Audi Allroad - 21k 2008 Black Mercedes E350 4Matic Sport - 131k 2014 Jeep Wranger Unlimited Sahara - 62k 2003 Gray Mercedes ML350 - 122k
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#5
01-08-2009, 01:18 PM
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Quote:
Another possibility could be a failing or faulty "ignition control module" its that thing on the drivers side fender with the large plugs connected to it and a vacuum line attached to the middle. I've heard that those can go bad and cause problems.
__________________
-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k)
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#6
01-08-2009, 01:58 PM
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Isnt that just the cap that goes under the rotor? On older vehicles it was used to protect the points from unknowing people playing with them and messing up dwell. My 4.5 has been without one for a very long time and it runs fine.
__________________
Current: 2021 Charger Scat Pack Widebody "Sinabee" 2018 Durango R/T Previous: 1972 280SE 4.5 2014 Jeep Grand Cherokee Limited "Hefe", 1992 Jeep Cherokee Laredo "Jeepy", 2006 Charger R/T "Hemi" 1999 Chrysler 300M - RIP @ 221k
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#7
01-08-2009, 09:11 PM
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Quote:
I'll replace it for good measure, but at least I know this most likely isn't my misfire. I'll still focus on my head gasket as the culprit.
__________________
2016 Monsoon Gray Audi Allroad - 21k 2008 Black Mercedes E350 4Matic Sport - 131k 2014 Jeep Wranger Unlimited Sahara - 62k 2003 Gray Mercedes ML350 - 122k
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#8
01-08-2009, 10:28 PM
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I just got in my new distributor cap, rotor, gasket, and cover today. The production date stamp on the distributor cap was '98!
Thats old stock!!
__________________
-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k)
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