Question about 2006 Ford Territory 4.0

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TERRITORY 2006 ENGINE RUNS ROUGH WHEN ETC LIGHT COMES ON WHEN IT GOES BACK OFF IT RUNS FINE

ENGINE RUNS ROUGH AND MISFIRES ONLY WHEN ETC LIGHT COMES ON CHANGED TPS MADE NO DIFFERENCE ENGINE LIGHT IS ON ALL THE TIME CAR RUNS FINE TILL ETC LIGHT COMES ON CAN ANYONE HELP PLEASE

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  • Ford Master
  • 44,670 Answers

The electronic traction control (ETC) is on because of a sensor failure. Run fault codes to find out the reason for the misfiring when the light comes on . It may be connected to a limp mode in the CPU to slow down the car when the ETC has a problem

Posted on Feb 15, 2014

  • wesley
    wesley Mar 26, 2014

    Its more than likely the injector wire loom.

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Posted on Jan 02, 2017

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SOURCE: Check engine light comes on. p0171 and p0351 codes found

From Lusty Kid:

I know the economy is bad, but change all of the plugs. Check your PCV Valve hose, 150 rottens them out allowing air to be sucked in, thus all kinds of codes.

Depending on mileage. Dismount the EGR valve and clean passages. If you are really good dismount the throtle position sensor body and clean out passages with Choke Cleaner., dismount where the EGR valves connects to the engine, clean out passages. Also check the hose thats behind this mounting to ensure is not clogged. If clogged clean it out. If not replace it. Is about 1.5 ft. long, connects to the PCV Valve Hose.

When is the last time you change your harness. Can't remember??? Replace it. Good Luck

Posted on Dec 26, 2008

  • 1986 Answers

SOURCE: engine light has come on and car is misfiring,

Main causes of misfire would be loss of spark; the air/fuel mixture is too far out of balance to ignite; or loss of compression.

Loss of spark includes anything that prevents coil voltage from jumping the electrode gap at the end of the spark plug. Causes include worn, fouled or damaged spark plugs, bad wires or even a cracked distributor cap. A weak coil or excessive rotor gas inside a distributor would affect all cylinders, not just a single cylinder.

"Lean misfire" can occur when the air/fuel mixture is too lean (not enough gasoline in the mixture) to burn. This can be caused by a dirty, clogged or inoperative fuel injector; air leaks; or low fuel pressure because of a weak pump, restricted filter or leaky pressure regulator.

Loss of compression means the cylinder loses most of its air/fuel mixture before it can be ignited. The most likely causes here are a leaky (burned) exhaust valve or a blown head gasket. If two adjacent cylinders are misfiring, it's likely the head gasket between them has failed. Also, if an engine is overheating or losing coolant, it's likely the head gasket is the culprit.

You can isolate the weak cylinder by temporarily disconnecting each of the spark plug wires, one at a time, while the engine is idling. When there's no change in the idle speed, then you have pinpointed the weak cylinder.

Posted on Aug 25, 2009

  • 432 Answers

SOURCE: I have a 2004 Ford freestar that is coming up with

The coil is bad. Just buy a new coil pack and that will fix it.
A friend has the same van and it was doing the same thing.

Posted on Sep 23, 2009

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