A cosmetic crack may develop on the plastic liftgate trim panel. Our technicians tell us the Ford has released a service procedure to replace the applique without damage the the liftgate glass.
Resources for the Repair and Maintenance of your 2004 Mercury Mountaineer
2004 Mercury Mountaineer
2004 Mercury Mountaineer Problems
A failed heater blend door or actuator can cause the temperature control for the HVAC system to stop working. A clicking sound from the dash area would commonly indicate an actuator fault. If the heater gets stuck on the hottest setting, the heater blend door may be broken requiring replacement of the heater box to repair the issue.
The composite (plastic) intake manifold may crack near the thermostat housing and cause a coolant leak. Ford released an updated manifold that was reinforced to prevent a recurrence. No recall was issued for this problem but Ford did extend the warranty to seven years on some models from the date of purchase.
The rear wiper may stop working. This could be due to a rear wiper motor that has failed requiring replacement.
2004 Mercury Mountaineer Questions and Answers
why is water leaking in the middle of my vehicle especially when i turn on the AC, it comes down quickly
my fail safe light come on due to a broken crank sensor replaced sensor cant get fail safe mode to come off
My cruise control started not working from time to time a couple of months ago. For the last few weeks I can't get it to engage at all. Also ABS warning light comes on from time to time.
hose for the moon roof drain has come disconnected how to fix, how to get to hose to reattach it.
2004 Mercury Mountaineer Reviews
some are right 04 being junk the big issue is money.tranny is week engine is good tranny took 3 months to replace finding the correct one.yes loveing wife loves this car lord blessing wont fix it a prayer to bury it would be better..
Junk. Cost me a fortune to keep this vehicle . Worse vehicle I ever owned.Repeatedly replaced brakes, tires, bearings and the transfer case.Eats gas! Sending this vehicle to the junkyard where it belongs.
Bought pre-owned at dealer in 2007- had 30K miles on it. Love the look and power (Have the premier v8 version). No major issues- replaced shocks and struts around 85k miles. At 115k miles, have a few minor issues- mostly electrical (wiring to rear wiper and defogger frayed at line between roof and gate). One of the window hinges on the rear gate failed as well (replaced both for about $50- bought them new on ebay) it was a simple repair. Check engine light just came on, likely 02 sensor. Still runs great- very reliable and parts are easy to get and not too expensive. I love my truck and would look at the 2010 version next (If I ever need to replace it!)
I have a 2004 Mercury Mountaineer. 137,000 miles. I love it however This past year everything is going. I have replaced the Radiator, both sides Ti-rods my windows don't go down unless the driver side door is wide open. It shifts really hard into gear like my tranny is going to drop. MOSTLY DISTURBING...it only starts without trouble when the weather is 60 degrees or higher. If damp or cold it does not start. This has been going on for 2 years. I sometimes have to crank it 40x before it starts! it failed emissions this year! I have always owned a mercury cougar and loved them all. That is why I bought this mountaineer when I did. I do love it and would I buy another....YES
I have a 2004 Mountaineer, O'boy with 127,000 miles this thing is like a puzzle. Something is wrong every week. Shuts down when on cruise control, idle goes up and down, transmission hits hard when shifting and one window does'nt work. Never again will i buy a ford product. The bad this is that ford will not do anything about it.