Volvo XC70 This wagon/SUV crossover offers the capabilities of an SUV without SUV size.

Sudden rough-running 98 XC p0305

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Old 08-07-2007, 06:08 PM
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Default Sudden rough-running 98 XC p0305

1998 XC70 with 130,000 miles. Suddenly started running rough with sulpher-like smell coming from exhaust. OBD II code for misfire, Cyl. 5 (p0305) Check engine light came on. Appears to blink about 10 times when attempting to accellerate. Even if it is running on 4 cylinders, it feels like 3 by the loss of power.

I will be pulling the spark plug and looking at the coil tonite. Any thoughts would be appreciated. I will let you know what I find.

I amy try switching coil no 4 & 5 to see if I get a code for misfire on cyl 4 (p0304).

 
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Old 08-07-2007, 07:58 PM
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Default RE: Sudden rough-running 98 XC p0305

Switched coil 4 and 5, cleared the codes, and got code p0304 upon accelleration. It's coil no 5!

About 60 bucks from overnightautoparts.com.
 
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