Ford - Mountaineer :: 2006 - Loose Gas Cap Light Came On - Code P0450
May 18, 2013
Having problem on my wife's 06 Mountaineer, 4.0. Couple months back the loose gas cap light came on out of the blue. I bought a stant gas cap and cleared the code, no problems. Well about 2-3 weeks ago it threw code 0450.
One of the things I saw it could be was the fuel cap. So I ordered a new Motorcraft fuel cap this time and cleared the code. Ran it about a week and the light came back on. No change is performance, mileage, and no fuel smell. So, I don't know what the problem is.
OBD II Code P0450 : It says that a common misdiagnosis is the fuel cap. Says that it is most likely a defective sensor or something. Need to change the fuel tank pressure sensor?
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My wife drives a 06 Mountaineer last spring a left front brake caliper piston seized up and there was damage to the rotor I replaced both rotors and that left front caliper then I changed out the rear pads as well . Then ever so often before that the ABS light on the dash would pop on hit reset it wold go off now it just stays on.
Then a few weeks ago she said the little yellow lines that indicate you are in all wheel drive started to flicker on .. Have not a clue as to why that is on now . But I would told most code readers would not read these sort of problems that I needed to get it to a dealer..
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Got a CEL in my 06 Azera yesterday. Went to autozone and got two codes
P2068 but I think the gentleman told it was both sensors (I guess A and for the fuel gauge.
He said it could possibly be a loose connector.
My question is: where is this connector located ? And what should I be looking for. I most likely will bring it to a recommended mechanic, but just want to know more about it.
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I have a 1998 Mercury Mountaineer AWD 5.0L V8. I've been getting the P0153 code off and on for about 3 months.
I read on another forum that bad gas caps can cause the problem, well, I've replaced the gas cap with a new OEM one and that seemed to stem the tide a bit.
As it often seems to pop back up when the tank is 1/4 or less, I fill the tank, and that works some. But it still happens.
This Thursday, 2 days after I changed the spark plug wires, it began misfiring on the #6 cylinder and the P0153 code came back and stayed on.
I swapped the #5 & #6 plugs, cleaned up the area and reinstalled the wires with dielectric grease. No more misfire, but the code did not clear.
So, I also changed the O2 sensor that kept kicking off the code. I used the OEM, Bosch O2 sensor.
I started it and it ran beautifully. Next day, I was driving and that damn code came back. I stopped and had breakfast, it was gone.
Off and on all the rest of the day, disappearing even while I was driving
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Horn just stopped working on my 06 mountaineer. 20 amp fuse is good. All other controls on steering wheel work fine (sound system, cruise control, no airbag problem). Also, when I press panic button on remote FOB the exterior lights flash until i press it again but no horn. Any thoughts?
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I have a 2006 mercury mountaineer awd v8 which up until a few weeks ago would be able to get 22 mpg highway. I have noticed that recently it has been around 17 mpg at the same speed. Could all of this be blamed on winter gas blend, or is there more to my problem?
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My wife has an 06 Mountaineer with a V8 and we have been having a problem with hesitation when the engine is placed under a load. The problem occurs most often when the transmission is in overdrive and the engine goes under a load such as driving up an incline at cruising speed. The engine begins to shudder much like a misfire but disappears when the trans kicks down a gear. The check engine light will flash momentarily but it never sets a hard code that I can read.
I have AutoEnginuity scan tool but there are never any codes. I've driven the vehicle with the scanner hooked up and there is never a misfire noted. The car has 96000 miles with, presumably, the original plugs. I'm aware of the potential problems with attempting to change these plugs. Where to look? I don't want to "hang parts" such as mass air flow or throttle position sensor. I've been hoping that the problem would progress to the point that a hard code would be set but none has yet.
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My 2006 Mountaineer 4.6 is ticking at start up, and it gets quieter after about 30 seconds. Does this sounds like the cam phaser?
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looking to replace the front wheel bearings on my 06 Mountaineer. Detroit Axle? I found them on both ebay and amazon and prices almost seem too good to be true (under $100, 12 month warranty).
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replacement of a rear tone ring on 06 mercury mountaineer V/6 . I have a tooth knocked off of my left rear . Just wanted to know if there was any special procedure or tricks to it like heating up the old ring or something to remove it or just soak it with P.B Blaster or something similar and tapping it like a bearing race ?
Never did this or have never seen it being done before and rather ask the questions 1st Had the dealer to quote me 500.00 for a new axle and labor said they are impossible to get off or on they most times split ? Old gear head pre-computer car days
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I am driving home from a meeting yesterday and I notice that my O/D off light is flashing. I drive home approx. 25 miles and the truck still seems to be running and shifting fine. The only time the tranny seems to have any issues is when I am slowing down. Once the speedo hits 25mph while slowing, the truck shifts kinda hard. Upshifting is still smooth and RPMs are still normal. Where I should go from here?
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The below is for a 175k mile '02 Mercury Mountaineer 4.0L with 5R55W trannie that has previously had somewhat of a whining sound in 2nd gear (I thot it was rear differential). Note: I just changed the fluid & filter myself last week due to its shifting being a little harsh. Then, this past Sunday, the O/D light started flashing after about 5 min of driving (but the CEL is NOT on). It also did so the next two times I drove it after that.
1. Any cheapest reader available at Adv Auto that can get these, I assume, Ford-specific transmission codes?
2. I tried a co-worker's dated Snap-on MicroSCAN (#EESC307A) that indicated all was good. Its software was dated 2002, if it's capable of getting what I need (for cheap, if an update is possible)?
3. I have an Android tablet and my wife has an iPhone. Any Torque app (or other) used in conjunction with one of those bluetooth OBDII readers, provide me with the fault codes I need?
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The below is for a 175k mile '02 Mercury Mountaineer 4.0L with 5R55W trannie that has previously had somewhat of a whining sound in 2nd gear (I thot it was rear differential). Note: I just changed the fluid & filter myself last week due to its shifting being a little harsh. Then, this past Sunday, the O/D light started flashing after about 5 min of driving (but the CEL is NOT on). It also did so the next two times I drove it after that.
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2002 Mountaineer... Driving into work today, my over drive light started to blink very fast. I have not had any trouble with high RPM's or shifting..
We had a very rainy/slushy/snowy drive in and never went faster than 30 miles per hour. Could an ice or snow build up be the culprit? I sure hope so!
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OK, got the plugs changed out and still had a miss. Had the service engine light come on saying a miss on #2. Bought a generic COP at local parts store and seemed to cure problem. I'd like to replace all of them with OEM but I'm confused as to which COP to purchase. I've had websites say the DG-508 fits my car and then another say that DG-511 is the correct one. 2007 Mercury Mountaineer Premier 4.6. The original COP's have 3L3E-12A366-CA on them.
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My mom just got a 2007 mercury mountaineer. Its an overall great vehicle. better than her corolla she had. But theres one problem. when it rains really hard, it leaks in the overhead light above the rearview mirror. We think it has something to do with the sunroof. and It leaks around the back glass. Not sure what is causing that.
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I have a 99 Mountaineer AWD 5.0 (143K) and having some issues with it. O/D light is flashing once in awhile so decided to check the codes.
- P07401 (Torque converter)
- P1728 (Transmission slip)
The truck shift fine and no having really issues when driving even if there is a weird noise around 70mph.
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I have a 2003 mountaineer v-6 awd drives pretty good but od light is always flashing even if ignition switch is open and truck not started..and check transmission on message display also..the only thing that i feel its really tight on turns as if it wants to lock up but once steering gets straight it runs fine... I know that a regular scanner cant pull codes I got to go to transmission shop but chances are there gonna tell me its trans time....
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The wife's 1997 Mountaineer, 5.0 with all the bells and whistles, Every time she stops, wet, dry, snow, any type of surface, the ABS brakes activate just as she comes to a stop. Heavy pressure, light pressure, doesn't matter. She says it sounds like a cow mooo-ing. 138,000 miles. New pads and rotors were installed 40K miles ago (about 3 years ago) she doesn't drive much but the noise is aggravating. No check engine light, or ABS light. Seems to come on when it gets below 10mph consistently. The Engine light comes on occasionally with a catalytic converter fault, replaced the converters but still get the light. I don't think it is related.
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I have a Mazda Tribute 2006 2.3. The O/D light would come on, drove it to a friends to scan the check engine light code, and the car almost made it there and then wouldn't remove in reverse, forward, or anything. Turn it off then start it up still wouldn't, then turned it off let it cool and it worked again for a little while.
The code was P0741, just the one code. Took it to a shop to have further tests, they seemed to think it was the clutch was worn and when the fluid heated it lost friction.
Pulled the transmission and thought why not do a Transmission rebuild? I have never done one but there was an awesome video on youtube of the guy doing it so I figured it couldn't be too hard and was just going to try my first rebuild.
According to the guy in the video you always need all new bushing, and we will get a rebuild kit with new clutch packs and the other stuff that comes with those, and sounds like it's a good idea to replace the torque converter.
The car is only at 85K and it looks like the transmission was rebuilt once before he got it at 80K. Maybe a bad rebuild?
Here are some pictures .....
The Input Sprag bearing was shredded and the bushing looks terrible. Can I just replace the bearing and the bushing? Is there any other damage I should be looking for because of this?
The forward planet you can so some eaten metal on the edge and 2 gears spin super smooth and the other 2 you have to push pretty hard to get them to turn. So new forward planet?
The shell's corners look a little rounded I wasn't sure how much was to much, can you tell from the picture if it looks like too much?
Input Sprag
Forward Planet
Sun Gear Shell
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I have a 2003 mercury mountaineer 4.6L AWD. The other day it died at the grocery store and now won't start. All it has is the check charging system warning light on. Changed Alternator, battery and starter already and still nothing. It does start sometimes but i need to give it gas to keep it running.
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