in most of general motors, i.e. Cadillac,Chevrolet,Buick, Oldsmobile, Pontiac and GMC, discourages technicians from poking into the wire insulation to make measurements or continuity because it breaks the wire insulation and therfore becomes a conduit for moisture that causes "ghost" problems. motorage discourages technicians from backprobing terminals because it can "mask" a potential cause of electrical anomalies or problems. it could "accidentally fix" a problem and could be a potential backjob. the question now is, which method do you prefer in wiring diagnostics?
personally, if i have access to the wring, i pierce the insulation to make measurements or diagnoses. the question now is: how about the wire insulation injury?
with this, i use liquid electrical tape after the testing to seal off the wire insulation injury. in the absence of liquid electrical tape, i use acrylic nail polish to seal off and prevent water intrusion into the wires. afterall, the most sensitive wires are the ones that lead to control modules. which, in most cases, a very confused and uncertain technician let alone a "mechanic" always blames the computer.
personally, if i have access to the wring, i pierce the insulation to make measurements or diagnoses. the question now is: how about the wire insulation injury?
with this, i use liquid electrical tape after the testing to seal off the wire insulation injury. in the absence of liquid electrical tape, i use acrylic nail polish to seal off and prevent water intrusion into the wires. afterall, the most sensitive wires are the ones that lead to control modules. which, in most cases, a very confused and uncertain technician let alone a "mechanic" always blames the computer.
