Do you know what a wiring diagram is ? Free here http://www.bbbind.com/free-tsb Enter vehicle info. Under system click on engine , then under subsystem click on starting . Click the search button ,then the blue link . B + power comes from the ignition switch through the starter relay diode ,through the coil side of the starter relay .
SOURCE: 94 mercury cougar wont run after 10 min
the fuel filter is either blocked or installed in the wrong direction.the rotor and distributor cap are fine. swop the fuel filter around and try again.
SOURCE: o2 sensors on a 99 mercury cougar v6
I just got done replacing the O2 sensors in my 99 Cougar due to throwing a P0135 malfunction code. There's 3. Facing the engine there's one in the front coming off of the front header, which is easy to get to. Another more tricky one if between the engine and the fire wall on the rear header pipe. The third is under the vehicle behind the transmission pan on top of the exhaust. In order to replace the O2 sensor near the fire wall you will need to remove the 4 retaining bolts for the ECM module and move it out of the way. Additionally you will need to remove the 2 retaining nuts for a wiring harness that is seated below the ECM module. Pay close attention to the connectors because the front and under vehicle O2 sensors have round connectors the one near the firewall has a squared connector. I was able to replace all 3 by myself in approximately 35 minutes. If your throwing a O2 heater malfunction code it is most likely going to be the sensor near the firewall. make sure that you know someone with a code reader so the code can be cleared. If you're do for an emmissions inspection be sure to put at least 40 miles on the new O2 sensor with different types of driving (e.g. highway, coasting, decellerated turns and rapid acceleration). Gotta love project cars for your kids!!
SOURCE: Purple solenoid wire shorted, no pwr coming from ign switch
look for a 5 amp fuse, crank fuse in car, not under hood
SOURCE: 1986 Buick LeSabre with 3.8L V6 died while
do you get fuel pump pressure, should be about 40 psi what about compression and spark on a saturn would be stronger due to many reasons one of which being different voltage of coils
SOURCE: why is 99 mercury cougar getting bad gas milage
Try new plugs, wires, fuel filter, air filter, pcv valve, and if its still not too
good,, do the 02 sensors..
Have a good day !
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