When does a Mercury Mountaineer start stall idle?

Amazing I have a 2002 Mountaineer V8 with the same issue, started 3 yrs ago. Mercury/Ford claims they have never seen this before. Mainly stalls when car comes to a stop sign in the mornings, never had a high speed stall. I have replaced fuel filter and air control valve.

What kind of problem does Mercury Mountaineer have?

Mercury Mountaineer 2004, AWD, V8. Bought this used with 40k miles on it. The engine dies (dead) when using the cruise control. control, several minutes pass by and suddenly the engine is dead. Most of the warning lights in the instrument cluster come on.

Can a faulty PCM cause low fuel mileage?

Since the fuel pressure regulator is given specific air/fuel mixture directions from the PCM, it should always maintain the proper mixture. A faulty fuel pressure regulator can also be to blame for a sudden decrease in fuel mileage. These symptoms can also occur with a plugged fuel filter, failing fuel pump, or faulty PCM.

When did the dpfe sensor go away on the Mercury Mountaineer?

We took the Mountaineer to another dealer and they replaced the DPFE sensor in July of 07. Until then to now the problem went away.

Are there any problems with the Mercury Mountaineer?

Check out our Mercury Mountaineer overview to see the most problematic years, worst problems and most recently reported complaints with the Mountaineer.

What to do if your Mercury Mountaineer starts stall idle?

I recommend a BG Induction service if you have never had this done and your vehilce is over 65,000 miles. Mercury Mountaineer 2004, AWD, V8. Bought this used with 40k miles on it. The engine dies (dead) when using the cruise control. control, several minutes pass by and suddenly the engine is dead.

We took the Mountaineer to another dealer and they replaced the DPFE sensor in July of 07. Until then to now the problem went away.

What kind of noise does a bad wheel bearing make?

Mike, Bad wheel bearings are usually associated with humming noises, not grinding sounds. Grinding noises usually have more to do with brake problems rather than wheel bearings. Try reading our article about brake noise to see if that is the problem you are having.

Why does my steering wheel make a noise when I turn?

This can sometimes be an issue with uneven wear on tires or issues with the drivetrain, but when you hear these noises when driving in a straight line it’s possible that it’s bearing related, especially if the sound gets worse when you turn the steering wheel slightly to the left or right. Uneven or abnormal tire wear.

How long does it take for PCM to relearn idle?

If you don’t do a relearn procedure, the PCM will “hunt” for a new baseline idle. It will eventually learn it on its own, but it may take over a week of driving, during which time you will experience high and low idle speeds and possibly rough idle.

Why does my Mercury Mountaineer stall at 70 mph?

Hi all…Frustrated Mountaineer owner here–My 2002 Mountaineer has been stalling at 70 MPH on the freeway. It staills at slow speeds, at stop signs etc. Dealer CANNOT get it to fail of course. It appears to be fuel related. I have seen “Fuel error” message on the display.

Why is my MerCruiser stalling at idle speed?

The mixture screws are for idle mixture only as they are out of the game as soon as the throttle plate is advanced above idle speed. You can look down the venturi during operation to spot an over-fuel condition but I’m thinking that is a waste of time. Start at the little carb fitter, then go to the anti siphon valve. W Thanks for the quick reply.

What should I do if my MerCruiser stall out?

After everything is warmed up I am able to put it in reverse and pull away from the dock. I am able to shift into forward and start heading out to the Chesapeake Bay. After running out at about 5 MPH I notice the engine starts to loose a bit of power intermittently and the picks back up.

What to do if your fuel filter is clogged?

the fuel filter is not clogged (consult your car owner’s manual or repair manual for the service schedule), the fuel injectors are not clogged. First make sure the fuel pump is working. Momentarily remove the fuel filler cap. Ask an assistant to turn the ignition key to the On position, but don’t start the engine.

What should I do if my engine oil keeps blowing into the air filter?

Purchase an engine flush formula from your local parts store and follow the directions. In general you will pour the formula into the oil and run the engine for a period of time. Once the engine has been flushed drain the oil and fill it with fresh engine oil. Replace the filter and see if the problem persists.

Can a car stall while idling on the road?

While it will most likely occur while idling, it is not unheard of for the car to stall while you are driving down the road.

How does the idle speed of a car work?

This valve is controlled by the vehicle’s computer which will adjust idle speed based upon other measurements such as engine temperature, intake air temperature and electrical system load or voltage. When you accelerate, the engine RPM increases, and as you let off the gas, the RPM slowly returns to the normal idling speed.

What causes a P0300 ” Random Misfire ” code?

If the ignition components appear to be working normally (no fouling, no shorting or arcing), the problem is likely a dirty or dead fuel injector. If you get a P0300 “random misfire” code, the most likely cause is a lean fuel mixture due to an intake manifold vacuum leak, leaky EGR valve, or low fuel pressure.

Where is the idle air control valve located?

My car has an automatic transmission. This may be a sign of a failing idle air control valve. The idle air control valve is located on or near your intake manifold that monitors the air intake as it is mixed with fuel prior to being injected into the engine.

When does a Mercury Mountaineer start stall idle?