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Montego

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Question
Hot air from the AC
Having a broken A/C is very unfortunate, not to mention uncomfortable. There can be several reasons why your Mercury’s Air Conditioning is blowing out hot air and you are correct to believe that the expansion valve could be one of...
Question
Sporadic RPM surging while stopped in the traffic
Fault codes should be read out of the ECM on your 2006 Mercury Montego. All connectors on the engine harness and at the ECU need to be checked for condensation and/or water ingress as these will cause drivability problems. I...
Question
Problem with the cruise control
Hey there, thanks for writing in about your 2005 Mercury Montego. Mercury has a technical service bulletin out for brake light switch being either faulty or not adjusted properly causing all kinds of cruise control issues. The brake lamp...
Question
Bank 1 and Bank 2 running lean
If lean faults occur after the manifold was removed and reinstalled, this indicates a vacuum leak which also means that unmetered air is coming into the intake. Either a vacuum line or induction pipe is loose, or the manifold is...
Question
Dual AC not working correctly
The charge level of the refrigerant may be low. If the refrigerant level is low then what could be happening is that all of the heat transfer capability of the refrigerant is maxed before the refrigerant can flow to the...
Question
Dash lights, hard and noisy shifting
You will need to get the fault codes read for your 2005 Mercury Montego. From the description you've given, it either sounds like a possible induction system issue in the electronic throttle control or possibly a transmission malfunction. Based on...
Question
Difficult to turn my steering wheel to the left, but not right
Hi there, The description you have given of the steering being hard to turn in one direction, leads me to believe, the rack and pinion is at fault. The power steering pump failure, would make it difficult to turn in...
Question
Put a new serpentine belt on and 10 minutes later burnt off again?
If the belt is breaking apart within minutes, odds are that something is seized or out of alignment. The belt is driven by the engine off the crankshaft pulley. It then spins over a belt tensioner (and possibly idler pulley)...
Question
Electrical - 2007 Mercury Montego
Hello - based on the documentation I have available, fuse #48 is for the fog lights. Perhaps there is a short in the wiring? If so, It is more than likely near the bulb itself, since that area is exposed...
Question
Car key won't turn in ignition
Hello, thank you for writing in. A battery inspection is a great place to start. You can remove it and have it tested, attempt to jump start the vehicle, or test the battery in the vehicle with a voltmeter if...
Question
Won't start battery light coming on but headlights are bright
Hi There, Your battery light coming on may indicate a sign of a weak battery, a failing voltage regulator or failing alternator. As you may know, the alternator charges the battery while the engine runs by generating amperage and recharging...
Question
I have,a 2005 mercury montego it has a code p0320 and p2106 where should I start first cam or crank
Hello, thank you for writing in. Due to the codes that you have currently, you will want to start with the crankshaft position sensor. You can test it with a multi-meter or voltmeter if you are equipped. If may be...
Question
What does it mean when your car not turning over and the battery the check engine light in the oil light on
Hi There, When the battery light is on this generally means you have an issue with the charging system (i.e. alternator or voltage regulator) or a weak battery. In this case, it sounds like you may have a battery that...
Question
My car wont shift out of drive but the gear shifter is moving.
Hello. It is likely an issue with your shift linkage which connects your gear shift to the transmission. Some parts of the shift linkage are made of plastic which the components break or pop off making replacement or reassembly required....
Question
Lowbeams on drivers side will not shut off
Hey there. To be completely honest my friend, you might need to go back to the basics and purchase a detailed wiring schematic for this vehicle to determine where the electrical fault exists. Quite often when an electrical fault like...
Question
Brake sensor is to sensitive causing brakes to flicker while driving. 2005 Mercury Montego
Hi there - your brake light switch needs a minor adjustment. It is adjusted too "tight" or close to the brake pedal lever, or possibly has failed. Adjusting/replacing it will eliminate this flickering problem. I recommend a brake light isn't...

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