Question about 1998 Mercury Mountaineer

2 Answers

Promblem with engine light

My engine light came on and it want go off . My car was put on a machine , the machine showed bank one and two.What does this mean. 1998 mercury mountaineer 6 cylinder 4x4

Posted by on


2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I recently had the same issue with my 98 mountaineer 6cyl 4x4. mine also showed the same codes for lean banks 1 & 2. That means the engine is getting too much air intake.
After about a month of a constant check engine light, i started to notice a hissing sound that came from underhood, that seemed to get louder every few days.
With a patient ear, i traced it to under the battery tray; which, by the way, looked wet from a leaking battery. Here, in phoenix arizona, batteries take a beating.
Under the battery tray there is an emissions component called the "cannister purge valve a.k.a. vapor manegment valve; attatched to it is the solenoid. there's three vacuum hoses, 2 thick 1 skinny, connected to this whole assembly. the top hose runs from the purge valve to the intake manifold.

Well on the purge valve there was pretty big hole. It was located on the chamber that the top hose connects to. Instead of the intake manifold sucking in a small amount of air from the valve, it was sucking in A LOT of outside air from the newly formed hole.

Just FYI, it took a lot of swear words and some scraped up, slightly bloody knuckles trying to get access to the valve, manuevering and such.

Posted on Apr 11, 2009

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert who has answered 20 questions.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

  • Expert
  • 50 Answers

Both oxsigen sensors dont work reigth way,on older cars maby is problem cataleti conwertor,if hawe aftermarket exsaust will make same code,let sombady chek sensors before reolecing o2 sensors nat chip

Posted on Mar 13, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Nissan latio engine warning light - Diagnostics "Fuel System Lean B1"

Most likely cause is a O2 sensor on bank one ,try changing the rear one on the bank one

Dec 27, 2013 | Cars & Trucks

1 Answer

Oil light on and engine making a lot of noise

put oil bank in the crankcase. the dip stick shows this.
always check oil levers. every 2nd fill up.
all engine burn oil. All.

Mar 19, 2013 | 2006 Suzuki Forenza

1 Answer

Engine light is on shows code p1131

P1131 FORD - Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank 1
This code is usually caused by a defective Oxygen sensor in cylinder bank one of your engine. Cylinder bank 1 is the bank of cylinders that contains number 1 engine cylinder.

Apr 18, 2011 | Ford Expedition Cars & Trucks

1 Answer

I have a used 2004 Kia Sorento and yesterday while running errands I started it and out into drive and it started sputtering, this went on and off for about 5 mins. Then this morning I start it and the...

I have a 03's sorento and this is quite a common promblem with these cars. First there has been a recall for these cars, if you havn't got it done, get it done, It's free of charge. The recall is the Camshaft Position Sensor. It will cause the car to run unstable, break and engine stall and causes accident and the engine light will come on. Secondly I had the same promblem that you were having, engine was shaking and sputtering and check engine light came on. What I found out is it is the EVAP Emission control system leak large bank 1 & bank 2 system too lean sensor problem. Had to take it to the shop to get the mass sensor replaced. It was a $900.oo + job, I recommend you taking it to the shop to get it diagnos to see what code it is giving you so you would know what exactly you are dealing with.

Jan 28, 2011 | 2004 Kia Sorento

1 Answer

Went to autozone because check engine light is on so they did the trouble shooting and the code was p0174 but he put it was a kia and not a suzuki and it the probable cause what...

P0174 is a "generic" code, meaning it's the same meaning for all OBD II cars (every model year '96 and later).

It is system too lean (BANK 2)

System Too Lean (Bank 2)
What does that mean?

Basically this means that an oxygen sensor in bank 2 detected a lean condition (too much oxygen in the exhaust). On V6/V8/V10 engines, Bank 2 is generally the side of the engine that doesn't have cylinder #1.

Note: This DTC is very similar to P0171, and in fact your vehicle may show both codes at the same time.
FB.init("dd7d9e9681341cde77587bc6a2029f6f"); on Facebook Symptoms

You will more than likely not notice any drivability problems, although there may be symptoms such as a lack of power, detonation (spark knock), and/or a hesitation/surge on acceleration.

A code P0174 may mean that one or more of the following has happened:

  • The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of "oiled" air filtersmag-glass_10x10.gif can cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry.
  • There could be a vacuum leak downstream of the MAF sensor.
Possible Solutions

Possible solutions include:

  • In the vast majority of cases, simply cleaning the MAF sensor does the trick. Consult your service manual for it's location if you need help. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling
  • Inspect all vacuum and PCV hoses, replace if necessary
  • Check for a dirty fuel filter and proper fuel pressuremag-glass_10x10.gif

Jan 28, 2011 | 2004 Suzuki Verona

1 Answer

My service vehicle soon light is on and i had a mechanic put it on his machine and he says its the heated oxygen sensor i know my vehicle has 2 oxygen sensors are they both heated sensors? how do i know...

well the machine the mechanic used will tell him something like what bank side its on like bank 1 or bank 2 senors 1 .2 etc if you go to auto zone the scanner can tell what pos it is but some times the can be wrong if theres other promblems first

May 08, 2010 | 2001 Pontiac Grand Am SE

1 Answer

OBD II Scanner shows multiple random misfires and a lean 2nd bank


May 27, 2008 | 2004 Chevrolet Tahoe

Not finding what you are looking for?
1998 Mercury Mountaineer Logo

170 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mercury Experts


Level 3 Expert

78267 Answers


Level 3 Expert

5655 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Are you a Mercury Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides