Question about 2001 Mercury Villager
The only thing I have changed is the spark plugs
Did you check your coolant level? If it gets low you won't get heat. Is the temperature getting completely up to the normal operating range? If the thermostat sticks open your engine won't get to normal range and you won't have good heat.
Posted on Feb 20, 2013
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Posted on Jan 02, 2017
Well, it sounds like your vehicle may have a bigger problem. I would go to a shop and have it coded. There is obviously a problem with the vehicle, may be something minor, but the light won't go off untill you fix it.
Posted on Mar 18, 2009
Barring any vacuum leaks, P0401 is indicative of a bad EGR valve. Hope this answers your question. Best of luck.
Posted on May 30, 2009
Hi, this is an issue that concerns the coil pack on your engine. It is malfunctioning. and, i recommend testing to make sure of thsi issue.
Check for dirt, corrosion or damage on the terminals and repair as necessary.
Measure coil primary resistance between ignition coil pin 4 (B+) and pins 1 (coil 2), 2 (coil 3) and 3 (coil 1) .
Resistance should be 0.3-1.0 ohms. If resistance is out of specifications, replace the coil pack. If resistance is within specifications, proceed to secondary windings testing.
Coil 1-cylinders 1 and 5 Coil 3-cylinders 2 and 6 Coil 2-cylinders 3 and 4
Resistance should be 12.8-13.1 kilohms. If secondary resistance is not within specification, replace the coil pack.
You can jump this link below for a good look at a diagram of the coil pack.
Posted on Jul 11, 2009
Start car and use a squirt bottle of water to wet the wires and coil, if you see it spark or run rough one or both are bad, repair the wires first as they are more common.
Posted on Aug 02, 2009
it means the catalyst is worn out, the efficiency is monitored by sensors, when the Cat falls below a certain reading or "threshold" the code is generating telling u that u need a new catalytic converter.
Posted on Feb 18, 2010
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