20 Most Recent 2009 Mercury Mountaineer Questions & Answers

The PATS anti-theft system will not let the starter engage an spin the engine around to start the vehicle if the theft deterrent module does not get correct coded value from the pats key. There is a transponder in the head of the key - when put into the lock cylinder a antenna behind the plastic steering column energizes the transponder which makes it send it's unique code to the computers on the vehicle. You have no clue what you're doing . Take it to a qualified repair shop . You would need a factory scan tool to check for codes in the computers before just replacing parts. Changing the ignition ? lock & key assemble or the electrical part of ignition switch? If key an lock cylinder the key needs to be programmed into the control modules . Anti-Theft NOTE: If the instrument cluster or the PCM (or both) is installed, the parameters must be reset in both modules or the vehicle will experience a passive anti-theft system (PATS) no-start. For additional information, refer to Passive Anti-Theft System (PATS) Parameter Reset in this section. PATS consists of the following components:

• Anti-theft indicator (located in the autolamp/sunload sensor)
• Encoded (the key contains a transponder) ignition key
• PATS transceiver
• Instrument cluster
• Powertrain control module (PCM)

PATS uses radio frequency identification technology to deter a drive-away theft. Passive means that it does not require any activity by the user. The vehicle is equipped with 2 PATS keys. A maximum of 8 PATS keys can be programmed to start the vehicle. If additional PATS keys are desired, refer to Spare Key Programming - Unlimited Key Mode in this section.

IF a battery drains down when out of the vehicle it indicates an internal fault in the battery (bad cell) Most vehicles do not have anything in the CPU to refer to the alternator or charging system unless it is really late and upmarket model where the ECM provides regulation for the alternator output. you can check the out put yourself by attaching a mulitmeter across the battery terminals and set on dc volts . Start the engine and see the volts at around 2000rpms. turn on the head lights and re-chech the voltage at 2000rpms the voltage in both cases should read 14.5-14.7 volts If it is lower or over that there is a problem in the regulation of the alternator output and should be checked by an accredited auto electrician

i would check the thermostat,i think its stuck open the coolant is running cold so you should install a new thermostat with higher degree.

If you mean the hood will not lock down in a closed position the following applies.It can be due to a stuck hood release cable or latch pivot that is out of sequence. With the cable problem, the cable remains pulled back in an OPEN position and the latch pivot will remain in an unlock position under the hood. For the latch pivot, the pivot has a V notch and is suppose to lay in an open position in order for the hood striker to trip it into a locked position. You may not be lined up, basically the pivot is flipped into a closed position and the striker hits its' top instead of its' V slot.Rust or a broken pivot return spring can be the causes for this defect.If you mean the hood will not move down from an open position, then that is a different problem. The small lift cylinders on each side of the hood may be jammed. Or the hood hinge could be defective. Be careful, some hoods are made of aluminum and bend easily if forced.

Go to Autozone,they will scan for free and only takes a few minutes.

Replace the switch with a new one.

Have you tried replacing the bulbs? The two side lights run through the turn signal switch so if they aren't getting power, chances are your signal switch is bad. Do your front blinkers work? Do the rear lights come on when you use the blinkers or the hazards?

There may be an upstream fuse that hasn't been discovered yet.

Once you have located the fuse panel, there will be a diagram showing the number, location, and size of the fuse. There should be a few spare fuses and a fuse plucker as well, providing they were replaced the last time they were used.

The wiggly road is a fault in the traction and or stability control . Possible wheel speed sensor and it has put the Truck in limp mode . You need to pull ABS and Traction control code to pinpoint the problem .The wrench is also telling you that it needs servicing .

Maybe fuse

if its in the bezel just pop it out then squeeze the tabs or unscrew the switch if its mounted in the door panel you'll have to remove the panel Im not sure which you have so I told you both

The squeal is a vibration noise. The pads need to be adjusted, treated with anti squeal paste and metal parts lubed. \P.S. cheap pads make noise

Take it to a qualified repair shop , you don't have the diagnostic knowledge or tools to fix this , just because you can read codes doesn't mean you can diagnose an fix it ,

Try adjusting the steering box to eliminate the steering play.

under dash drivers side

It should disconnect by pressing brake pedal. Take it to shop and have it disabled until repaired. Shop time vs Occident injury or ***** and lawsuits. Shop time is cheaper.