How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask HDGENE Your Own Question
HDGENE, ASE Certified Technician
Category: Mercury
Satisfied Customers: 4782
Experience:  25 years experience Ford Senior Master Technician/Diesel certified ASE Master Technician
Type Your Mercury Question Here...
HDGENE is online now
A new question is answered every 9 seconds

2006 Mercury Monterey quit after 7 hour trip. Felt like it

Customer Question

2006 Mercury Monterey quit after 7 hour trip. Felt like it ran out of fuel. Started right away but died couple minutes later. After few starts and shutdowns the van refused to start. It cranked and cranked. At times did not crank at all. Towed it to the dealer, PCM relay replaced did not fix it. Dealer recommended new PCM, way too expensive for a 170k van. Sent PCM for repairs, it was fixed (burnt resistor). Installed PCM and van quit after 5 minutes. Restarted it and at the 10 minute mark almost quit but recovered. Let it run for extended periods of time and continues to quit. Shows P0607 code and p0456. Van starts right up and idles, after idling for couple hours continues to die. Do not trust it for other than driveway idling at this time.
Submitted: 4 months ago.
Category: Mercury
Expert:  HDGENE replied 4 months ago.

Hello, this code indicates an internal fault in the PCM, either the calibration needs to be updated and if not pcm replaced. So its a question of why the original pcm failed if this caused the new one to fail or the new one is just bad

Customer: replied 4 months ago.
I agree with the code possible outcome but, can you provide more info? Other possible causes, previous cases with similar symptoms, etc?
Expert:  HDGENE replied 4 months ago.

Possible causes are aftermarket components, damaged pcm, module programming error. No other issues to cause this. There was a tsb for water intrusion into the pcm connector for drivability concerns which was to make a drip guard to keep water entering the pcm connector. Overcharging of the altenator would be only other real thing to spike the pcm

Customer: replied 4 months ago.
The TSB was accomplished years ago, there was no evidence of water intrusion. No aftermarket add ons and alternator seems stable charging to 14.2. Can you attempt to explain the sudden shutdown and ability to restart right away?
Expert:  HDGENE replied 4 months ago.

If the aftermarket company didnt load the software correctly or a bad capacitor in the rebuilt pcm would do it.

Customer: replied 4 months ago.
Is it possible to bring the PCM to a shop to be re-flashed or the van needs to go too? How much would it cost to re-flash it at the Ford dealer? Can you re-flash it?
Expert:  HDGENE replied 4 months ago.

Van must be at dealer to program, usually one hour labor

Customer: replied 4 months ago.
do you recommend the option of re-flashing the pcm?
Expert:  HDGENE replied 4 months ago.

Yes, code says to try refash first, if flash does not work replace pcm

Customer: replied 4 months ago.
Ok. Do I disregard the p0456 code?
Expert:  HDGENE replied 4 months ago.

Yes thats just a evap slow leak code, not related to drivability

Related Mercury Questions