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Old 10-25-2019, 04:23 PM   #1
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Replaced ignition switch, no crank, no start

I have been having trouble with my 2005 Focus zx4 for about a month now. I've replaced and checked fuses and relays. I even put in a new starter. After reasoning that it might actually be the ignition switch, I replaced that. Now only the oil light comes on. What's the deal? Do I need to bypass PATS? Could I have a bad ECM?


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Old 10-26-2019, 02:19 AM   #2
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Have you checked the battery?
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Old 10-26-2019, 02:20 AM   #3
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Yes. It's got a full charge. Could it be a ground somewhere, or a bad ECM?
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Old 10-26-2019, 03:32 AM   #4
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Having a full charge means NOTHING, the battery MUST have passed a loadtest at proper CCA (about 500 amp or so). You are holding it close like most do and why it takes so long to get to your true issue.

Volts (to the TENTH of a volt) on battery AFTER it has sat 8 hrs. after the charging? Age of battery? Is the car doing any clicking at an attempted crank?
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Last edited by amc49; 10-26-2019 at 03:34 AM.
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Old 10-26-2019, 08:43 AM   #5
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Quote:
Originally Posted by BlueWagon19 View Post
I have been having trouble with my 2005 Focus zx4 for about a month now. I've replaced and checked fuses and relays. I even put in a new starter. After reasoning that it might actually be the ignition switch, I replaced that. Now only the oil light comes on. What's the deal? Do I need to bypass PATS? Could I have a bad ECM?
Auto or manual trans?

BEFORE you replaced the ignition switch did you get all instrument cluster lights with ignition switch ON (KOEO)?

With the ignition switch ON (KOEO) does the radio, wipers, heater blower, turn signals, and brake lights work?

Do the headlights work, ignition switch ON (KOEO)?

Paul
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Last edited by Paul1958; 10-26-2019 at 10:20 AM. Reason: typo
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Old 10-28-2019, 07:26 AM   #6
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Auto or manual trans?

BEFORE you replaced the ignition switch did you get all instrument cluster lights with ignition switch ON (KOEO)?

With the ignition switch ON (KOEO) does the radio, wipers, heater blower, turn signals, and brake lights work?

Do the headlights work, ignition switch ON (KOEO)?

Paul
It's an auto trans. Yes to all your questions. Everything worked before I put in a new ignition switch. I put in the starter BEFORE I put in the ignition switch.
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Old 10-28-2019, 01:36 PM   #7
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Originally Posted by BlueWagon19 View Post
It's an auto trans. Yes to all your questions. Everything worked before I put in a new ignition switch. I put in the starter BEFORE I put in the ignition switch.
see below
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Last edited by Paul1958; 10-28-2019 at 01:45 PM. Reason: duplicate
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Old 10-28-2019, 01:43 PM   #8
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It's an auto trans. Yes to all your questions. Everything worked before I put in a new ignition switch. I put in the starter BEFORE I put in the ignition switch.
So right now - with the currently installed ignition switch ON - what works/doesnt?: radio, wipers, heater blower, turn signals, brake lights, headlights, instrument cluster warning lights

Have you tried moving the gearshift lever to N (neutral) or back/forth from P to N and seeing if the starter would crank in either position?

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Old 10-31-2019, 08:22 AM   #9
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Quote:
Originally Posted by Paul1958 View Post
So right now - with the currently installed ignition switch ON - what works/doesnt?: radio, wipers, heater blower, turn signals, brake lights, headlights, instrument cluster warning lights

Have you tried moving the gearshift lever to N (neutral) or back/forth from P to N and seeing if the starter would crank in either position?

Paul
The only light that comes on is the oil light. I've shifted back and forth. It won't crank in either position. Maybe I have it installed incorrectly.
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Old 10-31-2019, 02:06 PM   #10
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Originally Posted by BlueWagon19 View Post
The only light that comes on is the oil light. I've shifted back and forth. It won't crank in either position. Maybe I have it installed incorrectly.
What about the other things I asked about (with the currently installed ignition switch ON - what works/doesnt?: radio, wipers, heater blower, turn signals, brake lights, headlights)? You are making it very difficult to help you DIAGNOSE THE PROBLEM if you only partially answer my questions.

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