Question about Mercury Cars & Trucks
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Posted on Jan 02, 2017
SOURCE: 1998 FORD CONTOUR CHECK ENGINE
sounds like EGR valve and sensor this controls idle speed when at a stop. the po171 is a burn lean or rich code need to know what bank 1 or 2. also check for a vacuum leak from one of the hoses.
Posted on Aug 07, 2010
Sounds like an IAC motor, If you look near the trottle body there is a long cylinder with two bolts holding it on, the only other suspect would be a vacuum leak. -Jared
Posted on Nov 14, 2008
what codes are present? If it is lean codes P0171/P0174 problem is most likely the orings leaking between upper and lower intake manifold if this is a 4.0L
Posted on Feb 11, 2009
NO U HAVE TO REMOVE THE IAC TO CLEAN.DO U KNOW WHET CODE THE LIGHT IS SETTING?
Posted on May 05, 2009
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