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Old Mar 22, 2016 | 04:27 PM
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98 expedition p1747

i have a 98 expedition 4.6 4x4 check engine light on od light flashing sometimes checked it and got p1747 code i was told epc solenoid or short on trans wiring. i already dropped the trans pan can somebody tell me a step by step easy way to diagnose and find the short or if i need to replace any of the solenoids i have voltmeter and taste light
 
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Old Mar 22, 2016 | 10:13 PM
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Originally Posted by ephexpi
i have a 98 expedition 4.6 4x4 check engine light on od light flashing sometimes checked it and got p1747 code i was told epc solenoid or short on trans wiring. i already dropped the trans pan can somebody tell me a step by step easy way to diagnose and find the short or if i need to replace any of the solenoids i have voltmeter and taste light
I cant give you a step by step on finding a short or a wiring issue but I do find bad PCM's in these when I get that code, just something else to check.
 
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Old Mar 23, 2016 | 12:20 AM
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how do you check if pcm is bad
 
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Old Aug 17, 2016 | 12:10 AM
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P1747

Originally Posted by ephexpi
how do you check if pcm is bad
Any solution on this issue? I am having the same problem. The EPC solenoid has been replaced, along with the wiring harness and the throttle position sensor to no avail.
 
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