Question about 1997 Mercedes-Benz Mercedes Benz S Class Coupe

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I have a 1997 Mercedes S500 Coupe. The problem I have is that the number 8 coil and plug aren't firing. I have changed both coil and plug, but it's just not firing at all. My question is, could it be

Not getting a spark at all on number 8 cylinder, can the loom be changed?

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When you say not firing have you removed the plug and checked for spark across the plug points. If you haven't done that then do so as misfiring can also be from faulty injector( blocked tip or faulty electronics)

Posted on Nov 14, 2014

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Posted on Jan 02, 2017

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lastech
  • 408 Answers

SOURCE: Firing order diagram on 1997Mercedes E420

hello,if your engine is 119,,firing order 15486372, hoping it"s help you,ty

Posted on Apr 25, 2009

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SOURCE: I have a 2001 saturn sc 2 P0303

It sounds like a bad sensor or a break in the wire to the injector

Posted on Jul 18, 2009

  • 2002 Answers

SOURCE: 1998 ford ranger, number 3 cylinder mis fires.

When you change the plug what color is the tip of the old one? This could be the answer to your problems. It should be a light beige or tan if everything is working properly.Just take one of the old plugs down to your local garage and get the mechanic to have a look at it. He'll be able to tell you why it keeps misfiring. Hope this helps.

Posted on Nov 29, 2009

ZJLimited
  • 17970 Answers

SOURCE: diagram of spark plug

Check this for 4.6 or 5.4 sizes engine...

2004 Ford Expedition 4.6 liter V-8 VIN "W"

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2004 Ford Expedition 5.4 liter SOHC V-8 VIN "L"

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Hope this help (remember comment and rated this).

Posted on May 05, 2010

Testimonial: "thanks for the info. I worked like a charm"

  • 360 Answers

SOURCE: 2007 Pt Cruiser I Changed

I'm going to give this some thought and try to get back with you tomorrow....a cousin back home in Missouri is a MoPar nut and an excellent mechanic in his own right.

Posted on Mar 17, 2011

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