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HDGENE, ASE Certified Technician
Category: Mercury
Satisfied Customers: 5715
Experience:  25 years experience Ford Senior Master Technician/Diesel certified ASE Master Technician
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O/d light on 1999 mercury grand ***** ***** flashing JA:

Customer Question

O/d light on 1999 mercury grand ***** ***** flashing
JA: Thanks. Can you give me any more details about your issue?
Customer: Over drive light flashing on a mercury grand ***** *****
JA: OK got it. Last thing — Mercury Mechanics generally expect a deposit of about $18 to help with your type of question (you only pay if satisfied). Now I'm going to take you to a page to place a secure deposit with JustAnswer. Don't worry, this chat is saved. After that, we will finish helping you.
Submitted: 1 year ago.
Category: Mercury
Expert:  HDGENE replied 1 year ago.
Hello, when the overdrive lamp is flashing, that means there is an issue with the transmission which is storing a diagnostic trouble code. In order to know what type off issue is with the transmission. You must run a diagnostic check for codes with a scan tool. Most auto parts shops will run a diagnostic check for codes for free but may not be able to pull transmission codes depending on the scan tool they use.
Expert:  HDGENE replied 1 year ago.
Hello, do you need more help with this concern?