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2007 Mercury Mountaineer Gets Louder from 45-60 MPH


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chunter
New User

Jan 27, 2014, 1:01 PM

Post #1 of 8 (1190 views)
2007 Mercury Mountaineer Gets Louder from 45-60 MPH Sign In

Mercury Mountaineer 2007 with about 90,000 miles. Recently had the EGR valve replaced and the fuel filter replaced (about a month ago).

Before it was replaced, it seemed to make a louder than normal engine noise (not much louder, just a little)....from about 45-60 MPH. The RPMs don't shoot up, but it felt like it just wasn't getting full power. The mechanic I took it to, thought maybe it could be the fuel filter and replaced it with a motorcraft one.

Anyway, it is still doing it. I have no idea what it could be. I know alot about fixing computers, but nothing about fixing cars, unfortunately. Any ideas?


Discretesignals
Ultimate Carjunky / Moderator
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Jan 27, 2014, 1:22 PM

Post #2 of 8 (1182 views)
Re: 2007 Mercury Mountaineer Gets Louder from 45-60 MPH Sign In

Not sure what kind of problem your trying to describe. Would have to drive it to see what your talking about.

Check engine light on?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


chunter
New User

Jan 27, 2014, 1:32 PM

Post #3 of 8 (1172 views)
Re: 2007 Mercury Mountaineer Gets Louder from 45-60 MPH Sign In

No, check engine light isn't on.
When you drive and hit about 45 mph, it gets a little louder, like the engine is revving more than normal...like the engine is working a good bit harder than it normally does, but the rpm is staying the same. Youi also have to push a little more on the gas than normal...to get it from 45-60....

so, more noise all of a sudden at 45-60....and you have to push harder on the gas....and you seem to get less power...and it sounds like engine is revving more....but you get less power....even though you have to push on the gas a little harder and the rpm isn't shooting up....


Discretesignals
Ultimate Carjunky / Moderator
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Jan 27, 2014, 1:43 PM

Post #4 of 8 (1167 views)
Re: 2007 Mercury Mountaineer Gets Louder from 45-60 MPH Sign In

Was your mechanic able to duplicate your concern?

Which engine does this have? Did your mechanic check the operation of the fan clutch?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


chunter
New User

Jan 27, 2014, 2:15 PM

Post #5 of 8 (1159 views)
Re: 2007 Mercury Mountaineer Gets Louder from 45-60 MPH Sign In

I don't know if he was able to duplicate my concern. I had just described what was going on beforehand and he said it might be the fuel filter. And he replaced it.

It has the V6 2WD. I don't know if he checked the fan clutch. Probably not. he didn't mention it.


kev2
Veteran
kev2 profile image

Jan 27, 2014, 2:24 PM

Post #6 of 8 (1157 views)
Re: 2007 Mercury Mountaineer Gets Louder from 45-60 MPH Sign In

even if the CEL is not on, scan for codes-

two things that I woild check as they MAY explain symptoms ... fuel pressure - use a gauge, do an exhaust back pressure test...and post readings,


chunter
New User

Jan 28, 2014, 10:40 AM

Post #7 of 8 (1134 views)
Re: 2007 Mercury Mountaineer Gets Louder from 45-60 MPH Sign In


In Reply To
even if the CEL is not on, scan for codes-

two things that I woild check as they MAY explain symptoms ... fuel pressure - use a gauge, do an exhaust back pressure test...and post readings,



Tom Greenleaf
Ultimate Carjunky / Moderator
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Jan 28, 2014, 1:19 PM

Post #8 of 8 (1122 views)
Re: 2007 Mercury Mountaineer Gets Louder from 45-60 MPH Sign In

Not sure of your view. Just use plain "reply" selection to respond. Let users scroll back to see what was said. Different views on different devices........ Tom







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