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  #1  
Old 11-29-2009, 12:04 AM
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E320 coil

I have replaced the sparkplugs and wires but still not running well. how do I get the wire harness off of the individual coil?

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  #2  
Old 11-29-2009, 12:13 AM
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Join Date: Sep 2004
Location: Seattle
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The year will help.
__________________
1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra
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  #3  
Old 11-29-2009, 12:17 AM
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94 e320 wagon

Sorry, trying to post a picture but it did not load. 1994 I believe a 104 eng.
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  #4  
Old 11-30-2009, 01:51 AM
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Join Date: Sep 2004
Location: Seattle
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I do not have that car, but I looked at the coil on All Parts Express and it looks identical to mine. There are 3 connections: 2 for the plug wires and one to the harness. On mine the harness connector is a black connector that just pulls off. Does that answer the question?
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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra
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  #5  
Old 11-30-2009, 06:44 AM
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Join Date: Nov 2009
Posts: 5
the wire that goes to the associated plug just pulls off but the wire that excites the coil seems to clip on and rotates freely. I am afraid to break it. Does it need a special tool? or can it just take some force? Any advice on how to check which coil is bad without swapping each one? Thanks
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  #6  
Old 11-30-2009, 11:07 AM
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Join Date: Jan 2005
Location: St. Louis Missouri
Posts: 473
That connector just pulls off. By the way, you might want to verify you have the correct plugs installed. (Bosch F8DC4 or a NON RESISTOR, NON PLATINUM equivalent) If you use resistor type or platinum plugs in a 104 motor you will have misfire problems. The 104 motor uses a "waste spark" ignition system and it is very finicky about having the correct plug installed.

The databases that most parts houses (Autozone, Oreilly, NAPA, Advanced, etc) use list incorrect plugs for the 104 motor.

Bosch F8DC4's are sometimes hard to find but they are still available. Check with our site sponser, I bet they can send you some.

Hope this helps.

J. M. van Swaay

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1994 E320 Wagon, 230,000 miles
1995 E320 Sedan, 106,000 miles
1994 E500 Sedan, 79,000 miles
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