Question about 2000 Mercury Mountaineer
The 2000 mountianeer starts and runs fine in warm weather, 50 degrees or above. In colder weather it will start but it will not sit and idle and stay running, it just keeps cutting off until it is completely warmed up. You have to keep starting it and sit with a gentle pressure on the accelerator if you push the accelerator to far it cuts off. Once you can drive it a few miles, usually taking off requires using both the accelerator and brake at the same time, it runs just fine. So therefore it runs great about 7 months out of the year until the weather turns cold. A mechanic replace a few pricey electronic parts last winter but it didn't seem to help.
CHECK THE COLD START ENRICHMENT VALVE AND OR THE IDLE CONTROL VALVE. I AM ASSUMING THAT YOUR VEHICLE IS FUEL INJECTED. ONE OF THOSE HAVE GONE BAD.
Posted on Jan 24, 2009
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Posted on Jan 02, 2017
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