my sevice engine soon light come on in my 2002 Mercury Mountaineer. the code reads Po171 Bank 1 system too lean, 2 code Po174 Bank 2 system too lean, 3 Po300 Random- mutiole misfire derected,

Asked by Perry Jun 01, 2013 at 01:04 PM about the 2002 Mercury Mountaineer AWD

Question type: Maintenance & Repair

my car is not stalling but when im park it seems as if it wants to cut off, it does not do it when im driving. auto zone said it could be my air fiter sensor and its setting off the rest of the codes. what you think it could be.

migration_judge_roy answered 11 years ago

I'd go for a tuneup~

1 people found this helpful.

Mark helpful

1painter answered 11 years ago

might be a air leak between injector and heads,gasket,or fuel filter,or oxygen sensor. hate to say it but probably need to take to someone to do a diagnostic check, maybe ford place. hate all this complicated crap !

1 people found this helpful.

Mark helpful

migration_judge_roy answered 11 years ago

when you really have an EXPERT on a particular vehicle, NO time is wasted guessing, but the expert goes right to where the problem is and does not waste time guessing...quite, not me~

Mark helpful

48,965

kbro answered 11 years ago

The vacuum leak is probably causing the p0300. I wouldnt worry with a tune up unless it is time for one.

3 people found this helpful.

Mark helpful

48,965

kbro answered 11 years ago

And what is the parts store talking about "air filter sensor" they will hire anyone at those places I swear.

3 people found this helpful.

Mark helpful

Roger_T answered 6 years ago

Maybe they meant mass air flow sensor

Mark helpful

Your Answer:

my sevice engine soon light come on in my 2002 Mercury Mountaineer. the code reads Po171 Bank 1 system too lean, 2 code Po174 Bank 2 system too lean, 3 Po300 Random- mutiole misfire derected, 6 Answers

my car is not stalling but when im park it seems as if it wants to cut off, it does not do it when im driving. auto zone said it could be my air fiter sensor and its setting off the rest of the codes....

2002 Mercury Mountaineer AWD

-

Maintenance & Repair
the service "servie engine soon" warning light has come on in my 2004 mercury mountaineer. it is a V8 and has about 11700 miles on it. it is in good shape and I keep up on the maintenance. My local dealer has told me the "PCM" needs to be replaced and wants to charge me over $2100 to replace it. Is this reasonable? 2 Answers

I have a 2004 V8 Mercury mountaineer with about 11700 miles on it. My "service engine soon" light came on and my local dealer told me that my "PCM" needs to be replaced and wants to charge me over $...

2004 Mercury Mountaineer Convenience AWD

-

Maintenance & Repair
Renewed complete exhaust system from manifold back on my 1998 mercury mountaineer. Now there is a P0420 code coming up. Anyone have any ideas ? Thanks 2 Answers

Had all catalytic converters, sensors and pipes replaced by mechanic. Had a misfire code but took care of that. Now have a P0420 cade (catalytic converter efficiency below standard bank 1) . Mechanic ...

1998 Mercury Mountaineer AWD

-

Maintenance & Repair
I need to know what the code p1000 means for my Mercury mountaineer 2004 2 Answers

I have a 2004 Mercury mountaineer all around drive and the code p1000 and I need to know what it is

2004 Mercury Mountaineer Convenience AWD

-

Maintenance & Repair
I have a 2004 Mercury Mountaineer, V8, AWD, My problem, I think is in the computer? When I shut the engine off and try yo exit and lock the vehicle, setting the factory alarm system it won't do it. The digital display says that there is a "DOOR AJAR". I have checked all the doors as bet I can and they appear closed. BUT the interior lights remain on and the alarm will not set because off the ajar message. Am I missing something? Is the computer having a brain cramp.? I can get the alarm to set if I manually shut off the interior/dash lights too off. then it will work but no interior lights on the dash. This is driving me nuts. Can uou help?Thanks,John 12 Answers

I have a 2004 Mercury Mountaineer, V8, AWD, My problem, I think is in the computer? When I shut the engine off and try yo exit and lock the vehicle, setting the factory alarm system it won't do it. T...

2004 Mercury Mountaineer Convenience AWD

-

Maintenance & Repair

Looking for a Used Mountaineer in your area?

CarGurus has thousands of nationwide listings and the tools to find you a great deal.

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.

my sevice engine soon light come on in my 2002 Mercury Mountaineer. the code reads Po171 Bank 1 system too lean, 2 code Po174 Bank 2 system too lean, 3 Po300 Random- mutiole misfire derected,

6 Answers

Your Answer:

Looking for a Used Mountaineer in your area?

Shortcuts

Search Mercury Mountaineer Questions

CarGurus Experts

Find great deals from top-rated dealers

Related Models For Sale

my sevice engine soon light come on in my 2002 Mercury Mountaineer. the code reads Po171 Bank 1 system too lean, 2 code Po174 Bank 2 system too lean, 3 Po300 Random- mutiole misfire derected,

6 Answers

Your Answer:

Related Questions