You can try unplugging the battery to re set it or using a code reader on it
dash dash
take it to auto zone and ask them to check and then clear the codes or remove the positive battery cable and press the brake pedal for 30 seconds.
have vehicle scanned to determine problem
The easiest way is to unhook the battery for a minute.
In the 1997 Mercury Villager, the Transmission fluid dipstick is located on the driver's side of the engine just in front of and below the master cylinder/brake fluid check. The 97 Villager has a bulbous knob on top with no indication that it is the Transmission fluid.
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
By bringing it to a trained mechanic so they can check the engine is running properly (which if the light is on it's probably not)
Have vehicle scanned to determine the problem
You either need a scan tool, or unhook the battery for a minute.
According to one of Fords websites the spark plug gap for the 3.3 litre V6 engine in a 1999 Mercury Villager is ( .044 inch ) The 1999 Mercury Villager Owner Guide shows ( .039 to .043 inch ) * check your Vehicle Emissions Control Information ( VECI ) decal located in the front of your engine compartment
For the 3.3 litre V6 engine in a 2000 Mercury Villager : One of Fords websites shows ( .044 inch ) The 2000 Mercury Villager Owner Guide shows ( .039 to .043 inch ) * Check the Vehicle Emissions Control Information ( VECI ) decal in the front of your engine compartment
To reset the check engine light on a Mercury Villager, first, ensure that the underlying issue has been addressed. Then, disconnect the negative battery cable for about 15 minutes to clear the computer's memory. Alternatively, you can use an OBD-II scanner to erase the trouble codes. After reconnecting the battery or using the scanner, the check engine light should turn off.