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Mercury Mountaineer Start Stall Idle Problems

24 messages,  Last post on Jun 01, 2009 at 3:28 AM

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What is this discussion about? Mercury Mountaineer, Auto Repair, SUV

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#21 of 24 98 4.0 moutaineer stalling by kcardwell Feb 28, 2009 (5:21 am)
Just broke 90k wants to stall when not under acceleration. Fuel pump was replace 6months ago . Sounds like intake may have leak ? Thought someone might know seeing how my MC is off until Monday!!
#22 of 24 Stalling and spitting by gkay May 31, 2009 (5:02 am)
No body that I see has found a cure for it yet. I have had this issue for about 3 months now. I have put enough Gumout and tektron in the tank to build a refinery.   I brought it to my mechanic today and he says it is my "MASS FLOW" sensor on the air intake/filter gizmo. He says its 250 or so. Last year I paid about 600 for him to clear the error light messages so I could pass inspection. $600 because he changed all air sensors one at a time!   Okay back to symptoms: The stalling comes and goes. Some times I am ready to have the SUV towed and then it may disappear for weeks. Always happens when you hold a steady pedal. That is why it dies when using Cruise Control.   Anyone else add to this? Gary
#23 of 24 Start Stall Idle Problems/ by kmmbrenizer May 31, 2009 (9:38 am)
Hello, We finally figured out why my 2004 Mercury Mountaineer was stalling. This was happening when I slowed down, it would just shut off and say low oil pressure. sometimes it would go into engine fail safe mode. My husband found a posting online. We brought it into Ford last fall 08 and they did 1500 worth of work but it started doing it again.   We brought it again with the bulletin he found online and they replaced the THROTTLE POSITION SENSOR. It has NOT happened in two months!!!! IF YOU ARE HAVING THESE ISSUES-get this checked! IT was $200 with parts and labor!!! Replies to this message: gkay (Jun 01, 2009 3:28 am)
#24 of 24 Re: Start Stall Idle Problems/ [kmmbrenizer] by gkay Jun 01, 2009 (3:28 am)
Replying to: kmmbrenizer (May 31, 2009 9:38 am) Thank for the info. Wow, isn't the internet great! Gary

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