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SportTrac Discussion
Engine & Drivetrain
Fan moving in and out- bad water pump bearing? (also noise)
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<blockquote data-quote="StephenL" data-source="post: 1051435" data-attributes="member: 73871"><p>Thank you, I've got further into this and found some good stuff that may help others</p><p>-The starter relay is fed a live and a ground by 2 sperate circuits</p><p>The live circuit goes through the ignition and switch on the transmission that ensures the car is in park or neutral. If either of then are bad then it won';t provide the live</p><p>The ground circuit is the PATS system (the chip in the key) and anti theft, via the PCM</p><p></p><p>So I tested the live on the relay socket, which is under the hood between the battery and the driver. When key was turned, I got a live which tells me all that is OK</p><p></p><p>The ground was not being provided though. When I ran a wire from the battery ground to that socket and pushed the relay back in, the car cranked, but would not start.</p><p></p><p>This tells me the fuel/spark are not being provided too so I have moved on to that. Because its not just the starter impacted I am going to do some tests on the PCM. My suspicion right now is that the PCM got some shorts when the wires in the picture above got shredded and is toasted.</p></blockquote><p></p>
[QUOTE="StephenL, post: 1051435, member: 73871"] Thank you, I've got further into this and found some good stuff that may help others -The starter relay is fed a live and a ground by 2 sperate circuits The live circuit goes through the ignition and switch on the transmission that ensures the car is in park or neutral. If either of then are bad then it won';t provide the live The ground circuit is the PATS system (the chip in the key) and anti theft, via the PCM So I tested the live on the relay socket, which is under the hood between the battery and the driver. When key was turned, I got a live which tells me all that is OK The ground was not being provided though. When I ran a wire from the battery ground to that socket and pushed the relay back in, the car cranked, but would not start. This tells me the fuel/spark are not being provided too so I have moved on to that. Because its not just the starter impacted I am going to do some tests on the PCM. My suspicion right now is that the PCM got some shorts when the wires in the picture above got shredded and is toasted. [/QUOTE]
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SportTrac Discussion
Engine & Drivetrain
Fan moving in and out- bad water pump bearing? (also noise)
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