1999 Volvo XC70 4 cyl Four Wheel Drive Automatic 131K miles
My volvo started loosing power while driving, idles rough, and I have the trouble code which indicates cylinder 5 problem. I replaced spark plug, coil, and this doesn't fix. Cylinder 5 is the issue. Could my fuel injector be bad, and if so, is it a difficult amateur fix? What do you think is the problem.