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: July 2, 2018
If your vehicle's engine misfires, hesitates, stalls, gets poor mileage, is hard to start or has failed an emissions test, it clearly needs something, though a tune-up in the traditional sense might not be the cure. If you tell a repair shop your vehicle needs a tune-up, the mechanic should ask what you feel the signs are that you need maintenance before recommending any service. Just like a doctor should ask what symptoms you're experiencing, a mechanic should seek to diagnose the problem. And just as a doctor may recommend some tests, a mechanic may do the same.
The commonest cause for electrical faults in cars is the 'short circuit' which typically is caused by the so-called 'clashes' in the wiring system. Unless you are professionally qualified in the field of auto vehicle wiring (or mechantronics), you are advised against attempting to carry out auto electrical repairs on faults emanating from 'short circuits.' Getting things wrong here could, in the worst case scenario, see your car up in fire!