Mercury Mystique - Recent Questions, Troubleshooting & Support

That is for the exhaust gasses from the battery.

1 3 4 2 https://www.justanswer.com/car/1dfh1-firing-order-1998-mercury-mystic-2-0-engin.html https://www.google.com/search?q=firing+order+for+98+Mercury+mystique+4+cyl ..

see the service manual

Don't know where you see R-1 , ford use's F-1 80 amp fuse under hood fuse box . Fuse F-4 20 amp located in the under hood fuse box supply's battery voltage to the ignition coil . The crankshaft position sensor is what triggers the coil's . The crankshaft position sensor receives is power (voltage) from the PCM - engine computer . Your best bet , take it to a qualified repair shop.

Your compression rings may be worn or dirty. On next oil change use a high mileage oil with an oil additive that will clean the rings.

Fuel in the tank does not mean fuel in the injectors. Run a fuel pressure test to see how much fuel pressure there is. Also check the injector pulse with a noide test light. The injectors may not be getting a ground to fire because of a bad fuse.

Could be the transmission.Make sure it is full of fluid. Hold your foot on the brake and give it some gas with the other foot. If you feel a miss, then it is a miss fire.

I believe it is. There is a shifter interlock that goes from the ignition switch to the brake that locks the transmission in park until the brake pedal is depressed with the key on. Most all vehicles have an over ride that allows the interlock to be bypassed. If you have an owners manual, it will tell you how to do this.

the models without AC use a AC delete pulley, so there is only one belt size, the pulley goes where the compressor is in your with AC car, contact Ford for the AC delete pulley

better get a second look at the brake light switch, there might be two, third brake light is on a different circuit, switch light circuit goes to signal switch then brake lights

Have you had the timing belt changed? It sounds like your timing is out of correlation. One tooth off is enough to cause a problem like this

Good Afternoon, I was wondering if you actually did check power to the pump itself. If you remove the back seat bottom cushion you can get right in there.Also you might want to check the inertia switch to see if it has tripped as well. Hope this helps.

Good for cleaning the throttle (Known as upper induction cleaning). A couple references I read specifically said not to use Brake Cleaner on the throttle. See below. You could have killed either the Mass Air Flow sensor or Throttle Position Sensor or both. Fix It Right Induction and Throttle Body Cleaning Have a shop run diagnostics on the Engine Computer.

If the coolant temp gauge is in it;s usual position when driving(at least 1/3 way up) then flush the heater core with a garden hose.Clamp off the heater hoses,remove them from the heater core and flush back and forth a few times until flow is good,reattach heater hoses and you should have heat as long as the heat/cold airflow door is in the heat position in the heater assembly under the dash.

How hot does the engine get in degrees F ? Some radiator fans won't turn on till about 220 degrees F ? Knowing the actual temp would help. Is your coolant boiling over or anything? Sometimes when cooling system is opened, it might get air in the system?

Does the check engine light go OUT while cranking? If not , if it stays ON, you've got a bad crankshaft position sensor. These can fail with intermittent no starts. So just when you have it towed it, it'll start working again. Check engine light is supposed to go OUT if it's getting good signal from the sensor.

Get an obd2 code reader or borrow one from a major auto shop and they'll help you out in retrieving it. You can get wireless ones that will transmit the codes to your phone. You can get them for as cheap as $5 with free shipping. ELM327 Bluetooth obd2 transmitters work best with Android and the wifi ones are better for iphones. Then you something like Dash Commander or Torque Lite to grab the codes and translate what's going on.

Car thinks it's still in gear. The park shift interlock is activated. This is a safety feature that won't allow key to come out unless vehicle is in park. Try this see if vehicle will start, if it starts run gear selector through all gears then turn off try to remove key. Let me know how this works

Check the temp sending unit. That is what tells the gauge to move.