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For cars,RVs and motorcycles,the most common symptom of a bad wiring harness is a dead batteryor one which looses charge very quickly and frequently. Another is when the engine either revs up or idles down unexpectedly,or the vehicle lurches /stutters when driving.Reference: sourcetech411/6-most-common-issues-with-wire-harnesses/Was this helpful?People also askWhat is wiring harness?What is wiring harness?A wiring harness, also known as a cable harness, consists of a batch of wires and cables. These cables transmit signals containing information, as well as energy in the form of operating currents. They are generally bound together by things such as cable ties, conduits and electrical tape,..Reference: ourpastimes/wire-bad-wiring-harness-7503225See all results for this questionWhat are the symptoms of ECM failure?What are the symptoms of ECM failure?4 Symptoms of ECM Failure 1 The Check Engine Light is on. There are many reasons your Check Engine light can turn on. 2 Your Car Fails to Start. If your ECM can’t make adjustments to your car’s timing or air to fuel ratio, the vehicle may not start at all. 3 Bad Performance or Fuel Economy. 4 Rough Shifting or Other Transmission Issues.ECM Failure - 4 Painful Symptoms of a Bad ECM ComputerSee all results for this questionWhat is outside of engine harness?What is outside of engine harness?Outside of the engine compartment, there are wiring harness for the various lighting and entertainment systems. The most common aftermarket / add-on or custom wiring harness is for installing vehicle-to-trailer wiring.6 Most Common Issues With Wire Harnesses - SourceTech411See all results for this questionHow do you check for damage from a harness?How do you check for damage from a harness?Look for any places where the insulation has been damaged, or for obvious burn marks caused by exposed wiring. Also check to see if the contact points are contamination free and do not have any visible corrosion. Prepare the harness for a continuity test by turning the power off, since an open circuit could result in the meter getting damaged.Reference: ourpastimes/wire-bad-wiring-harness-7503225See all results for this questionFeedback
Broken Wires in Wiring Harness May Cause Engine Problems
Broken Wires in Wiring Harness May Cause Engine Problems; Automatic Transmission May Fail Due to Internal/Electrical Component Failure; Recall on brake master cylinder due to potential leaks; Failure in Spark Plug Tube Seals May Cause Misfire and Poor Fuel Economy; Defective Speed Sensors May Cause Cruise Control/Speedometer/Shifting Problems
Bad injector or Bad Wiring to Injector? (how can you tell
Aug 08, 2010Typically a bad injector soleniod will cause the IDM to shut down the entire bank. The easiest thing to do is what dray suggested. Ohm the wiring and check for continuity. Be sure to wiggle the harness and connectors with the meter on it to check for any intermittent short.
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