Question about 2003 Mercury Mountaineer
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Common issue at the shop (i'm a ford technician), here is what I do to correct it.
Here is the most common cause of surges and stalls at stops and low erratic idle speed and rough idle, it is the idle speed control air-bypass valve and throttle valve (IAC for short), they get full of gunk over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.
Posted on Mar 11, 2009
Tips for a great answer:
Nov 30, 2014 | 2004 Mercury Mountaineer Premier
Jan 19, 2014 | 2001 Mercury Mountaineer
Aug 18, 2011 | 2003 Mercury Mountaineer
Feb 01, 2011 | 2003 Mercury Mountaineer
May 01, 2010 | 1997 Mercury Mountaineer
Nov 04, 2009 | 2003 Mercury Mountaineer
May 19, 2009 | 2003 Mercury Mountaineer
Jan 15, 2009 | 2003 Mercury Mountaineer
259 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: