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Amedee
Amedee, Mercury Technician
Category: Mercury
Satisfied Customers: 25447
Experience:  ASE certified Technician advanced level specialist. Wisconsin certified emissions state inspector
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02 Mercury Sable: crank..wont start..Repair shop..fuel pump relay

Customer Question

'02 Mercury Sable has problem starting: will crank but won't start. Repair shop replaced fuel pump and fuel pump relay. OK for a period of a month or so, then started again but only in one certain location. Only when I'm at the gym......I know, don't go to that gym again!;-)
Submitted: 5 years ago.
Category: Mercury
Expert:  Amedee replied 5 years ago.
Hello!

Thanks for requesting me!

Do you know if the engine has spark when it does not start?

Does the check engine light come on with the key on and go off while cranking the engine over when this happens?
Customer: replied 5 years ago.
The engine light goes on and off with the key. I did notice a light that I never noticed before. It was a symbol of a car with the fuel door open. Don't know for sure if the engine has spark.
Expert:  Amedee replied 5 years ago.
Ok.. this is what we need to do... We need to start by checking for spark when this condition happens.

Disconnect #1 ignition wire at the spark plug.
Install a spark tester into the end of the spark plug boot.
Have an assistant crank the engine over and check for spark at the tester.
Repeat this process at each spark plug.
If any cylinder does not show spark, proceed to secondary component tests.
If ALL secondary components show no spark, test components individually.

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Customer: replied 5 years ago.
Will have to get back with you.Have to get someone to help with testing. Won't be able to do it today. Thanks.
Expert:  Amedee replied 5 years ago.
Thanks for the accept!

Please let me know if you have any further questions!

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