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Ask Chris (aka- Moose) Your Own Question
Chris (aka- Moose)
Chris (aka- Moose), Mercury Technician
Category: Mercury
Satisfied Customers: 44500
Experience:  16 years experience with Mercury
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I have a 2010 mercury mariner that wont start unless you

Customer Question

i have a 2010 mercury mariner that wont start unless you push the key in hard and turn. what causes this?
JA: Is the car in "Park" or "Neutral?" Do you know if your car has a "wheel lock" feature?
Customer: park I dont know
JA: Are you fixing your Mariner yourself? What have you tried so far?
Customer: yes.removing cover to see if any obstruction.
JA: Anything else you want the mechanic to know before I connect you?
Customer: no
Submitted: 13 days ago.
Category: Mercury
Expert:  Chris (aka- Moose) replied 13 days ago.

Welcome, I'm Chris (aka Moose), my normal schedule online is around lunch and after dinner till early morning.

If you do not push in hard are you still able to turn the key but not able to get it to crank and start?

Do you get the same results from both keys?

Customer: replied 13 days ago.
Customer: replied 13 days ago.
no phone call
Expert:  Chris (aka- Moose) replied 13 days ago.

Thanks,

With a yes response to both questions I was hoping to rule out the lock cylinder and leave just the ignition switch to blame but they are both still to blame with that response.

Below are the steps to replace the ignition switch and lock cylinder.

https://dl.dropboxusercontent.com/u/90220402/ignitionswtich.pdf

https://dl.dropboxusercontent.com/u/90220402/lockcylinder.pdf

Back probe the ignition switch connector to test the wires/pins while still connected.

  1. WH/OG only powered with the key in the run and start position
  2. not tested
  3. not tested
  4. power all the time
  5. not tested
  6. VT/GN only powered with key in accessory and run position
  7. BU/WH only powered with key in start position.

Test these when turning the key normal and when pushing in on the key to see if the results are different.

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Customer: replied 13 days ago.
1. WH/OR power both ways.
4. power all the time.
6. VT/GN power both ways.
7. BU/WH power when pushed in.
Expert:  Chris (aka- Moose) replied 13 days ago.

Remove both the switch and cylinder to see if anything is worn not allowing the cylinder to turn the linkage far enough in start to fully close the switch in the switch while in the start position.

Customer: replied 13 days ago.
I don't see anything worn.
Customer: replied 13 days ago.
anymore info?
Expert:  Chris (aka- Moose) replied 13 days ago.

Since nothing worn is seen but you have seen electrically the different results you get. I would pick a part to replace and retest. Of the 2 I would go with the ignition switch first.

Expert:  Chris (aka- Moose) replied 10 days ago.

Hello again Chris here,

  1. I have to assume you were not pleased with my help, because you have not replied or rated the post.
  2. What would you like to do regarding your question now?
  3. Do you still need help? Please reply I want you to get equal to or more than what you paid for.
  4. This post is coming up on the 7 day mark where it times out. That can prevent me from being able to post answers to your replies.

Thanks Chris

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