2008 Endeavor whistling noise while decelerating

Asked by Nov 29, 2010 at 01:38 PM about the 2008 Mitsubishi Endeavor LS AWD

Question type: Maintenance & Repair

sounds like a faint jet engine whine/whistle. It's hardly noticeable when you first start driving, but it slowly gets louder the longer you go, in which case you can notice it pretty easily. It is MOST noticeable when you are coming to a stop and it's down shifting. With each shift down the whine goes from a higher to lower pitch.

I comute daily on the interstate and really notice it when I let off the break to slow down.  (I don't have to touch the brake for that to happen) and doesn't do it when idling.  Just after a higher rate of speed and start to slow down.  Any ideas?

3 Answers

10

My 2004 Endeavor is doing the exact same thing, nearly sounds like a turbo slowing down but there is no turbo on it, I am thinking vacuum hose or air intake or something it first started after a very long drive (400 miles) did you ever find out what yours was?

1 out of 1 people think this is helpful.
10

Did either of you ever figure out what was making the whistling noise?

10

I have a 2008 Mitsubishi endeavor also. I have 114000 miles on it. I had it when it only had 40,000 miles on it, never had an issue with it before but now I get the same whistling noise and it noticeable when I accelerate rapidly. Not sure what it is. Also my service Engine soon light came on, auto zone said it's multiple misfire which may cause from spark plugs (which I had changed recently) ignition coil, vacuum hose leak, bad fuel filter, or engine malfunction. With all the above it may be time for a new car. Unless a vacuum hose replacement and a fuel filter change rectifies the issue.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

  • 2004 Endeavor engine knock 32 answers

    I have a 04 endeavor AWD with 140k miles. For the past year, the engine would knock, rattle upon cold starts. Recently it developed a loud full time knock, which went away 3 days later. I had the ...

    2004 Mitsubishi Endeavor XLS AWD

    -

    Maintenance & Repair

  • crazy downshift problem 1 answer

    O.K. guys its probly nothing but im freakin out cuz my eclpse is goin crazy i have a '96 eclipse base model and sometimes wen i'm getting off the highway at high rpm's it does a crazy gard downshift a...

    1996 Mitsubishi Eclipse Base

    -

    Maintenance & Repair

  • 86 Montero 2.6 Stalls at High RPMs. Manual Vehicle 1 answer

    My 86 Montero is stalling at High RPMs. Or sometimes when I just change gears. I just finished changing the Mechanical Fuel Pump, Fuel filer for new ones and cleaned my carburetor, and ungunked my i...

    1986 Mitsubishi Montero Base 4WD

    -

    Maintenance & Repair

  • 99 spyder engine shake 2 answers

    Okay so I get up to speed just fine. Then about 5 miles down the highway doing 65 or more, if I decelerate, and then accelerate, my engine starts shaking, and it can be quite violent at time. Doesn'...

    1999 Mitsubishi Eclipse Spyder 2 Dr GS Convertible

    -

    Maintenance & Repair

  • Engine noise on deceleration? 2 answers

    I purchased a new 2016 Subaru Forester two months ago, and as someone new to CVT engines, I learned that the engine can sound a little different from conventional engines, with a little more whine. ...

    2016 Subaru Forester 2.5i Premium

    -

    Maintenance & Repair

Endeavor

Looking for a Used Endeavor in your area?

CarGurus has 609 nationwide Endeavor listings starting at $2,500.

ZIP:

Search Mitsubishi Endeavor Questions

Mitsubishi Endeavor Experts

#1 Daniel Foster
Daniel Foster
Reputation 480
#2 Tom Demyan
Tom Demyan
Reputation 310
#3 gno
gno
Reputation 160
View All

Related Models For Sale

Used Mitsubishi Outlander
83 Great Deals out of 8,054 listings starting at $1,900
Used Nissan Pathfinder
525 Great Deals out of 26,970 listings starting at $2,495
Used Toyota 4Runner
382 Great Deals out of 20,144 listings starting at $2,499
Used Nissan Murano
472 Great Deals out of 22,317 listings starting at $1,499
Used Honda Pilot
616 Great Deals out of 20,514 listings starting at $1,500
Used Mitsubishi Lancer
78 Great Deals out of 5,964 listings starting at $2,996
Used Jeep Grand Cherokee
1,116 Great Deals out of 69,513 listings starting at $1,500
Used Toyota RAV4
1,135 Great Deals out of 54,189 listings starting at $1,350
Used Mitsubishi Lancer Evolution
15 Great Deals out of 704 listings starting at $14,977
Used Ford Explorer
1,431 Great Deals out of 71,885 listings starting at $985
Used Honda CR-V
1,292 Great Deals out of 75,548 listings starting at $1,995
Used Ford F-150
3,389 Great Deals out of 203,566 listings starting at $1,273

Used Cars For Sale

2011 Mitsubishi Endeavor LS AWD For Sale
6 Great Deals out of 90 listings starting at $4,999
2010 Mitsubishi Endeavor LS AWD For Sale
6 listings starting at $4,999
2008 Mitsubishi Endeavor LS AWD For Sale
26 listings starting at $5,700
2007 Mitsubishi Endeavor LS AWD For Sale
21 listings starting at $4,888
2006 Mitsubishi Endeavor LS AWD For Sale
24 listings starting at $2,500