Question about 2003 Volvo S80
I have 03 s80 turbo. The car misfiring and shudders on stopping at traffic lights. Check engine lights come on. Have had tune up using vilove plugs 2) boshch plugs and 3) again Volvo. Changed two of the coils. scaner kept saying misfire on 3and 4. lastly Volvo diagnosed as misfiring on all cylinders but 2. Had me replace al plugs again. Problem still persit and getting worse with poor start up. plaese help.
Check your wire harness on the top of the engine. Volvo must have bought harnesses from Mercedes. The insulation just cracks and disintegrates, then the wires short. Not good for an ignition system.Once they short It can fry the circuit for that cylinder in the computer. Does not set a code other than Misfire.
Posted on Jun 16, 2009
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Posted on Jan 02, 2017
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