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SUVs Mercury Mountaineer Mercury Mountaineer Start Stall Idle Problems
24 messages, Last post on Jun 01, 2009 at 3:28 AM
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Hi all...Frustrated Mountaineer owner here--My 2002 Mountaineer has been stalling at 70 MPH on the freeway. It staills at slow speeds, at stop signs etc. Dealer CANNOT get it to fail of course. It appears to be fuel related. I have seen "Fuel error" message on the display. It will restart immediately. It can run fine for a couple of trips, then it will fail. I put a can of Gummout cleaner in the fuel and it's working through that now. Any ideas?
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Replying to: mnpaul (Sep 30, 2007 6:16 pm) Why not try this...... Use gas until nearly empty and fill-up at a brandname station like chevron/texaco Take it to a different dealership and perform - throttle service (combustion camber) change fuel filter etc. Using gumout might not be good for a classy SUV like Mountaineer. Instead try Techron system cleaner Just my 2 cent
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Replying to: oluade76 (Oct 03, 2007 12:25 pm)
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Replying to: mnpaul (Oct 03, 2007 3:58 pm) 
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Replying to: djanthene (Oct 09, 2007 11:27 am) Well I wanted to update everyone on my vehicle status. I have been out of town for the last couple of weeks since adding the "Gumout Regane Complete Fuel System Cleaner" (purchased at Target. I did some drving yesterday for the first time in 2 weeks and the vehicle stalled twice on the freeway. On my return trip (about 20 miles) and today with a 40 mile or so trip--NO stalling occured. Of course I am not 100% convinced this issue is resolved, but it's good new nontheless. The symptoms keeps pointing to a fuel issue and something being clogged. The stalling became worse when the Gumout was hitting the engine, but it appears that it has passed it (like Draino) and hopefully has cleared the issue. I am going to try to drive the vehicle as much as I can this weekend, as I have an appt at the Ford Dealership on Monday am and of course I would LOVE to cancel it. I will update everyone on my progress the rest of the weekend. Caution--- Just be advised if you do have the same issue as I indicate above (frequent stalling at high speeds) becareful when/where you add the Gumout. The instructions say to get to a really low gas tank, add the Gumout and fill it up with fresh gas. I did this and once the Gumout hit the engine & fuel system it stalled many times. Stay on local streets unitl it works it through. The Saturday I added the Gumout, was the worst ever, it must have stalled at least 6 times in a couple mile radius before I parked it for a couple of weeks. Good Luck I'd love to hear other stories relating to this issue. 
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Replying to: mnpaul (Oct 13, 2007 11:21 am) Good luck Paul |
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Replying to: djanthene (Oct 09, 2007 11:27 am) Did you ever get a resolution? My issues are back after a sucessful 4-5 full tanks of gas and now the stalling started this past weekend. I put a bottle of Heet in the gas tank and had less stalls (1 at 50 mph in a 200 mile trip home yesterday) Any updates would be appreciated. I am thinkiing about changing the Air Control Valve (from a previous poster), but I am not sure if that's my exact problem, since its stallling at high speed (not just at idle) Paul
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Replying to: mnpaul (Nov 26, 2007 7:33 am)
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Replying to: melvyn_cincy (Mar 18, 2008 5:57 pm) The stalling came back this winter. I then decided to add a bottle of HEET to each gas tank when I fill up (live in MN) and it solved the problem. The car is stored in a warm garage, is not run often (live in the city)...so I am thinking that it is some type of condensation build up that that HEET resolves. I will continue to add HEET to every fill up regardless of the outside temp. It appears to fix whatever is causing this annoying & unsafe problem. Good luck! Paul |
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greetings We have an 02 mercury mountianeer that seems not to like spring weather. the problem stated April 07 thru June 07, my wife would take short trips maybe 10 to 20 miles, on a hot or warmer than normal day time temp in Minnesota during the time shown. The car would run fine, she would turn it off do whatever errand she was doing and then car would not start. we tried several remidities including user a higher octane gas and even replacing the battery ( first thought the battery was at a minimum 5 years old). Of course when the car was at the dealer they could not get the problem to repeat. We took the Mountaineer to another dealer and they replaced the DPFE sensor in July of 07. Until then to now the problem went away. Now to today ( April 21 08) and once again Minneapolis had the warm est day of the year so far a whopping 76 degrees. the morning stated out cool not cold so when my wife went to work the car ran fine when she went to start the car in the afternoon after having sat out all day it did not want to start. after several attempts she decided to let it sit. We waited to approx 8 PM to try and start the car and of course it started. My question is are we expierencing a vapor lock issue or is there something else at hand?
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