The computer can be reset using an OBD-II code reader/diag unit. If the light returns then the code must be read to determine the real problem. Run1 When the battery has been disconnected or replaced, it clears the on board computer of all errors and all data. The inspection station uses data from the OBDII computer to check if the car is within compliance, so when the battery was replaced all the data was cleared. You will need to drive the car roughly 50 to 100 miles so the computer can read all the sensors on the car to see if they are in good working condition or give you another "Check Engine Light".
Disconnect the vehicles battery. Leave it unhooked for several hours. Reconnect the battery. This should reset the 1989 cougars computer.
timing is computer controlled there is no way to advance or retard the timing without changing the chip in the computer
How do i find the instructions for changing out the fan switch assembly in a 2001 Mercury Cougar?
check the cables
It's grounded on the front of the Mercury Cougar frame next to the headlight assembly.
I can tell you that on a 2000 mercury cougar it is a fuse on the positive cable between the battery and the alternator
The dash clock in a New Edge Cougar does not turn off, unless you disconnect the battery.
On a UK model it is under the bonnet next to the battery.
The computer control module for a 94 Mercury Cougar is located behind the glove compartment. This allows it to be accessed easily while protecting it from damage.
go to a auto parts store like advance auto and have them check your computer to see why it is on. they do this for free. this might give you a idea on why its on. if you havent already.
the battery could have a dead cell, this could cause it to not charge. Have the battery tested to be sure.
The ( Power Distribution Box ) is between the battery and the driver side fender .
According to the 2000 Mercury Cougar Owner Guide : Both the 2.0 litre four cylinder and the 2.5 litre V6 engines came with the Motorcraft BXT-40R battery ( that's BCI group size 40R )
This happened to me on a road trip in my 84 Cougar. It was a long time ago, but first make sure your belts are tight! But I believe you may need to replace the alternator. If the battery is old, its cheap insurance to do both.
From what I can find, it doesn't look like they sell them anymore.
The 2000 Mercury Cougar V6 engine takes a ( BCI Group Size 40 R ) battery The battery dimensions are : Length ( 10.90 inches / 277 mm ) Width ( 6.42 inches / 174 mm ) Height ( 6.88 inches / 175 mm )
On a 1996 Mercury Cougar , that came with the 4.6 litre V8 engine : It either came with the Motorcraft BXT-65-650 battery or the optional Motorcraft BXT-65-850 battery ( that's BCI group size 65 , 650 or 850 cold cranking amps with the 4.6 , V8 )
According to the 1997 Mercury Cougar Owner Guide : The 3.8 litre V6 either has the Motorcraft BXT-58 battery or the optional Motorcraft BXT-65-650 battery ( the optional battery is BCI group size 65 , and 650 cold cranking amps )
The computer may not be enabling the fuel pump. If the fuel pump works when connected directly to the battery, it is good. If it won't work when connected to the wiring harness, then the computer might need to be reset. This involves disconnecting the battery for a little while, say, half an hour.
take the terminals off the battery and run a wire brush through them, or sandpaper.
start your car and then disconnect the battery if it dies then it is your alternator that is what i am working on right now but good luck if it is the alt you have to drop the motor cradle
Every time you disconnect a battery cable you have to reprogram the radio stations ( if that's what you are asking )
ECM reset for 2002 merc couger
wires, connecters, terminals
I have what looks like a battery light on my dashboard. What does this mean?