2007 edge jerks at low rpm

[Anthony Cruz]

Greg,

I am having the same problem on my 2007, 120K miles. Debating if I should only change the plugs and the PCV valve or go ahead and change coils as well.

 

Trying to figure out the usual life of the coils.

[Cbrodsky]

I have an 07 Edge and was having similar issues. While accelerating up the slightest incline giving little pedal depression the vehicle would shake/shudder/vibrate.

 

I'm a tech so I have the ability to check and go fairly in depth for diag.

Come to find out, the engine was NOT the problem. The guilty part/parts were the TSS and OSS in the trans.

 

Got the 2 sensors for about 113 bucks from the local dealer and did the repair. FYI, if you do this yourself and look up repair instructions, you don't have to do everything in them as far as removing parts/hoses/etc.!

Took me about 2 hours to replace the sensors, fluid, and then hook up my scanner and clear/reset the KAM.

 

Drove home and not only is the hard shift from 1st to 2nd gone, the shudder/shake/vibrate issue is also gone!!

 

Hopefully this helps someone who is having the same issue before they go throwing unneeded parts on their Edge.

 

Info on my Edge for comparison to others:

2007, SEL, FWD, 190k miles.

[navaidstech]

I had a similar problem with 07 Edge at 100k miles.

 

Occasionally the car would violently hard shift from first to second when slowly accelerating from a stop. Applying more gas alleviates this problem.

The car would start hunting between 5th and 6th gears on a highway at around 1200 RPM. Applying more gas would drop it to 5th and then once it shifted to 6th at higher RPM, it would stay happy. This was more noticeable under load (AC running or trailer in the back).

 

The hard shifting was noticed about 20k miles ago and I decided to live with it, but when the slippage crept up just recently - I thought it was time to do something about it.

 

I picked up the input and output speed sensors (TSS and OSS) at RockAuto for less than 100 bucks. Replaced them just yesterday (about a 5 hour job - I'm a backyard mechanic, lol) and car runs like a dream now (knock on wood). Haven't had a single instance of hard shift or slippage during test drive. Also noticed the shifting is very smooth across the entire range compared to before.

 

Fingers crossed here.

Edited October 21, 2017 by navaidstech

[casaccio]

I have a 2008 Lincoln MKX which is basically the same thing as the Ford Edge. The shutter at low RPMs and constant jerking exactly the way that you guys described has been happening to me for many years and it has been really annoying. I have read through these forums so many times over the years with no clear answer. I decided to go the cheapest route and replace the 6 spark plugs. I was able to get to the front 3 very easily and they looked pretty old. I did not feel like trying to access the back 3 because they looked very hard to get to so I decided to give it a test drive with just the 3 brand new ones. I have been driving the car now for one month and it has NOT done the shutter jerking once! This definitely fixed the problem for me. Before changing the plugs it would do the jerking every single time I drove it. I will probably change the other 3 in the near future but here is a picture of the ones I pulled out. They might even be the original spark plugs and this car has 160,000 miles on it.

Edited May 10, 2021 by casaccio

[WWWPerfA_ZN0W]

you will want to do them ALL, AND check the coils for integrity.  rotate the front to back and back to front at the very least.  these MYs have an issue with the worn plugs burning out coils burning out coil drivers in the PCM. can get expensive very fast.