I just paid 400 dollars to have the coils and the spark plugs replaced. Come to find out it was actually the pcm wire harness that needed to be replaced. Apparently the current isnt completly getting through and the car bucks and almost stalls while i am driving. The ford dealership quoted me at 1300 dollars. Im hoping to do it myself. Does anyone have any ideas, diagrams, directions, or anything that could help?
I've changed them regularly (I'm an electrical specialist and repair or replace harnesses for different vehicles about once or twice a year) and this is not a DIYer job. as the intake has to come off as well as half of the accessories on the front of the motor to remove all the wires as part of the harness. The cost is the harness and not the labor as the harness is usually $600+ in cost. I'd say go to another shop for a second opinion. without knowing more it's hard to help, but I've never had to replace a harness like you said unless it melts due to some reason.
for what headlight taillight eng, interior there alot but its all the wire diaram for u truck need it wont work with out it what happen ur fried ,cut ?? good luck A cable harness, also known as a wire harness, cable assembly, wiring assembly or wiring loom, is a string of cables and/or wires which transmit informational signals or operating currents (energy). The cables are bound together by clamps, cable ties, cable lacing, sleeves, electrical tape, conduit, a weave of extruded string, or a combination thereof. Commonly used in automobiles, as well as construction machinery, modern-day cable harnesses provide several advantages over loose wires and cables. For example, many aircraft, automobiles and spacecraft contain many masses of wires which would stretch over several kilometres if fully extended. By binding the many wires and cables into a cable harness, the wires and cables can be better secured against the adverse effects of vibrations, abrasions, and moisture. By constricting the wires into a non-flexing bundle, usage of space is optimized, and the risk of a short is decreased. Since the installer has only one harness to install (as opposed to multiple wires), installation time is decreased and the process can be easily standardized. Binding the wires into a flame-retardant sleeve also lowers the risk of electrical fires.
Get a second opinion and don't be afraid to have them explain it to you. If they are a good shop and they want to do it they will take a minute and explain it to you so you can understand what the problem is and how they are going to fix it.
