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Big Rig Basics

Getting Your Power Back If your engine won’t run and your lights won’t turn on, it may be time to replace your alternator Replacing an alternator is a simple job, but diagnosing electrical problems is complex. Don’t replace an alternator until you’ve had it tested and know it’s bad. Most trucks today use a pad-mount alternator, like the one shown, for more rigid mounting. Consult your truck’s technical manual or the supplier of the unit for information on ...

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