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2003 mercury mountaineer...120,000 miles...good condition, recently had break pads replaced and jiffy lube oil change...rides very smoot but i have a service engine light now. what are some possible issues and where can i get a cheap diagnostic

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Pretty much any of your local ayto parts stores will pull diagnostic trouble codes at no charge. As far as a "cheap diagnostic", depending on the code you get and how detailed it is to properly diagnose depends on what code you get.Just an example, say you get a code of P0171. This code means that the upstream O2 sensor has detected a lean burning condition. Many of the auto part stores will just tell you that you need the upstream O2 sensor and sell you one. That's really the main reason they do it for free but really proper diagnosing needs to be done. A lean burning condition very well could be a faulty O2 sensor but it could also mean that you have a vacuum leak, a blockage in the intake system like needing a new air filter, an exhaust leak or even if you you recently ran out of gas. All these things can cause that code and I hope you diagnose before you just buy a part. I'm just using that code as an example as there are so many codes and many tests too. Hope this helps you.....

Posted on Oct 20, 2013

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Posted on Jan 02, 2017

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SOURCE: Check engine code 1407

two people told me it was the egr valve
one guy said he replce the hose and it worked for him
I hope this helps

Posted on Feb 03, 2009

  • 210 Answers

SOURCE: Engine light came on recently and Jiffy Lube guys

If the check engine light came back on after the computer was reset you need to take it and have the code read to see what the problem is. Most auto parts stores will check it for you free such as Autozone, O'riely, Pep Boys.

Posted on Jan 21, 2010

  • 25 Answers

SOURCE: how do I reset my oil service light? I just got an

turn key to the acc position without the engine running and depress the gas pedal all the way down 3 times this should turn off oil change light and reset oil change cycle to zero..

Posted on Feb 24, 2010

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How often do i change the oil on a mercury mountaineer 2005?


It depends on how many miles you drive annually, the environment your vehicle is driven in (dusty, hot, cold, humid, dry, etc), the type of oil you use (conventional, synthetic blend, or full synthetic), and the condition of your car's engine. You should consult your owner's manual and the data on your engine oil.

I drive a 1999 Mercury Mountaineer 5,0L and drive it about 1,500 miles annually. I use a synthetic blend oil and change my oil and oil filter twice a year. I change the oil in the spring so I have fresh oil for the hot summer driving season and I change my truck's oil in the fall after the hot summer driving season. Because my Mountaineer has a lot of miles on it, I use thinner oil in the winter 5/20 and thicker oil in the summer 10/20. I check my oil regularly and look at the color and feel the oil for grit. This has worked for me for many years and I have had good performance from my vehicles.

You can go on the different oil manufacture's websites and read their recommendations as well. There has been much debate about when to change the oil in a vehicle so you have to decide for yourself what schedule you want to follow.

Jun 25, 2014 | 2005 Mercury Mountaineer

Tip

Engine Flush.


I get ask this question a lot. Should I do an engine flush? The answer to that is NO! If you have your vehicle serviced at a quick change lube, they will push services like this to you, especially if your a woman. Jiffy Lube is notorious for doing this. Every automotive manufacturer will state in their warranty, if you do this, they will void the warranty simply because it will cause a major engine failure. Over time sludge and deposits build up in an engine, when you flush it, it breaks up these deposits and they settle in the oil pan. Even when you drain the oil and place a new oil filter on, some of these broken up deposits remain in the engine plugging up the oil lube ports. This stops oil from properly lubing vital parts inside the engine causing engine failure. Products like engine flush are known as snake oils in the automotive repair business. The best and safe way to stop sludge build up or remove it, is to use a good quality synthetic oil and quality oil filter. This will end your sludge problem over time. One more thing, avoid quick change lube centers, any of them no matter if it's EZ- Lube, Jiffy Lube, Wal-Mart and on and on. The people working there are not automotive techs, the have not went to collage or have a degree in automotive technology. No one with a degree in automotive technology is going to be working at a quick lube center for minimum wage, they will be working in a good independent service center or dealership making $22 or more per hour. For more information on this, go to youtube and search Jiffy Lube Scam. There are tons of news story video's on all of these centers.

on Jun 20, 2014 | Cars & Trucks

2 Answers

Maintenance schedule


Power Steering & Transmission Fluids get replaced
EVERY 3 YEARS ON ALL VEHICLES
from the time they are new or those systems will fail
STAY AWAY FROM JIFFY LUBE
STAY AWAY FROM JIFFY LUBE

Jul 24, 2013 | 2003 Ford Escape

2 Answers

When Jiffy Lube changed the oil in my 2009 Ford Expedition, they did not reset the "Change Oil" message in the instrument panel. Since I set out on a trip immediately after the service, I can't...


You can leave it,it is a gadget,not tied to any system

You should have an owners manual (still) on a 2009

Never go the Jiffy Lube

Read all the damage and horror stories ,on quick change
places.

Dec 08, 2010 | Ford Expedition Cars & Trucks

1 Answer

Had a faulty oil filter put in by Jiffy Lube. Low oil pressure light came on after about 2000 miles into oil change. Jiffy Lube stated it was a faulty oil filter and replaced it. Drove off and light...


I can tell you that it sounds like someone is trying to take you for a ride.. I've been a mechanic for 28 years. And I've never heard of o rings going bad on a motor that only has 56000 miles. Change the oil filter again.. make sure that it's not a fram.. gram filters have been known to cause your oil pressure light come on. Hope this helps you.

Apr 22, 2017 | Volvo S60 Cars & Trucks

1 Answer

Sensors went bad, at 60 k miles, is this covered in warranty


you need to take the vehicle to a real mechanic. Jiffy lube employes are not mechanics. Change your oil at jiffy lube and get mechanical work done at a reputable auto dealer or mechanic shop.

May 06, 2009 | 2005 Nissan Altima

1 Answer

2003 Mountainer location of OBD2 connection


it is under the dash on the drivers side just to the right of the column.

Dec 21, 2008 | 2003 Mercury Mountaineer

1 Answer

Transmission Fluid


Manual trans as well as auto trans,the fluid should be changed once a year and/or every 30k miles.

Sep 15, 2008 | 1998 Ford Explorer

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