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2003 Mercury Mountaineer 4.6L Poor Idle Quality, Surge, Stall, Misfire, MIL Lamp on, Low idle
Posted to Ford Driveability on 9/16/2015 14 Replies

hello all,

going rounds on this one, time for help.

came in with complaint of dying.

normal cold start-up: idles high when cold. but when warmed up idle drops way down to [...] then surges back up to 1200 about 2-3 times then dies. if you restart it a few ...

14 Replies Received (View Replies)

  Related Documents & Media  2003 Mercury Mountaineer

 
Message Closed w/FIX

car Vehicle Data

2003 Mercury Mountaineer

VIN 4M2ZU86W53
Engine4.6 L / 8 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Surge, Stall, Misfire, MIL Lamp on, Low Idle
OccursAlways, Idle

Trouble Codes

P0401EGR System Insufficient Flow Detected
Message Closed w/FIX

car Vehicle Data

2003 Mercury Mountaineer

VIN 4M2ZU86W53
Engine4.6 L / 8 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Surge, Stall, Misfire, MIL Lamp on, Low Idle
OccursAlways, Idle

Trouble Codes

P0401EGR System Insufficient Flow Detected