ENGINE STUDDER

[BDUb]

I believe its just one but I will get more details when they call back.

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[Robert Scott]

I too have the same studder problem. Start and warm up the engine. Drive down my driveway onto the street. The first up shift sud-d-d-der. Only once, does not do it again when warm.

 

[myothercarizahearse]

I had the same issue and took it in. they said they didn't do anything to it and that's the way it runs but hasn't done it since. I wish i knew what they did to share with you

 

[alan andrews]

I too have the same studder problem. Start and warm up the engine. Drive down my driveway onto the street. The first up shift sud-d-d-der. Only once, does not do it again when warm.

sounds o too familiar. mine does get better when completely warmed up--mile or two. tried high test--no change. ill live with it for a while. some folks say it gets better with milage. thanks for the input

 

[BDUb]

I am waiting to hear when I can pick it up as there are multiple issues. However, it was only 1 injector for sure that was faulty. They are waiting on the trim pieces to be delivered to them so they can replace those. I will ask more questions when I pick up the truck. The AC smell was found that rats had gotten in there. Damn lucky they didnt chew up any wiring. I have just ordered a bunch of traps and considering barn cats to patrol and kill these rat bastards.

 

[alan andrews]

I had the same issue and took it in. they said they didn't do anything to it and that's the way it runs but hasn't done it since. I wish i knew what they did to share with you

told the same thing along with "its my imagination". no engine light no can fixy. hope over time there are enough complaints to warrant a recall. regards alan

 

[Robert Scott]

Hopefully there is a fix and if enough complaints are generated a fix will appear. This problem appears to be Ranger only, 2019 and 2020.

 

[BDUb]

What I find odd is I thought this was the same engine as the mustang and the focus and soon to be bronco. If this was an issue wouldnt the other platform vehicles have the same issue?

 

[Robert Scott]

Excellent point BDUb. May be we can get an answer from:
Phil Schilke
Ranger Vehicle Engineering
Ford Motor Co. Retired

 

[Chrisr24]

FYI All,

I just got off the phone with my local Ford service department and theybare having to replace a failing injector. 12k miles on the truck. In the morning on cold startup if I just get in and go with no warm up it stumbles and missis and the transmission feels off as well. I was hoping for just a software update issue but alas its an injector. I am now stuck in a Ford Escape until they fix that issue...major bummer! At least it happened under warranty.

Interesting cause i have that same feeling sometimes. Only when the truck is cold though

 

[alan andrews]

Hopefully there is a fix and if enough complaints are generated a fix will appear. This problem appears to be Ranger only, 2019 and 2020.
[again hot engine all good. im no mechanic but could it involve the mass air flow sensor or something with cold air/ gas mixture and what i used to call an automatic choke. when engine is hot all goes back to normal. of course ford wont give any input except " get a grip" it is what is is

 

[P. A. Schilke]

Excellent point BDUb. May be we can get an answer from:
Phil Schilke
Ranger Vehicle Engineering
Ford Motor Co. Retired

Hi Bob,

It would appear that we are mixing different problems together and then throwing them into the Ford Vehicles Salad. So lets separate the problems in to engine related and driveline related. The shudder feels similar to the customer and some may have both. Addressing engine related shudder due to faulty fuel injector(s) may be shared between other vehicle lines. I do not lurk on other platforms so cannot say. It has been a Ford strategy for quite a few years to not single source parts from the supply base as single sourcing puts the Ford Assembly plants, in this case, various engine plants in jeopardy, Our Ranger engines are from the Cleveland Engine Plant...IDK if it is #1 or #2. So if an injector quality problem...it would likely be one supplier having the problem. If it is a Ford design problem then it would be across all suppliers and all vehicle lines using this injector, for example.

I am not seeing any systemic engine related problems except for injectors on early 2019 production which was to my understanding traced to a supplier quality issue and was fixed quite rapidly. The red flag was raised due to the number of warranty claims from dealers and some poor engineer was getting these reports that his parts were a problem and he was on the hot seat. Supplier Quality Assurance was in the mix too.

Now to the systemic driveline start up shudder. Cannot say about the Bronco as it is not out in the field yet, but this startup shudder is, as I have said before, inheritant with 2 piece drivelines. That takes East/West powertrains out of the equation. What I cannot get my arms around is that the frequency of the vehicles that have start up shudder. My feeling it it is less than 1% of the population but these forums provide a small sample size for the number of Rangers in the field. This is why I have strongly recommended those with the startup shudder to file a formal complaint with Ford Customer Service. If this is a systemic problem with a high percentage, your complaint will help fan the flame of a problem that needs attention, which then kicks off an investigation and development of a potential fix resulting in a decision to issue a TSB and implementing a production fix if deemed necessary.

Okay...long winded and really did not address forum members questions. My inside contacts indicate there is no active engineering investigation going on inside the company, but take that with a grain of salt as none of them are directly involved with Ranger...Also, the PVT at the Ranger Plant is apparently not working on start up shudder either according to my friend who was PVT Manager until the end of the 2019 Model year when he retired.

Best,
Phil Schilke
Ranger Vehicle Engineering
Ford Motor Co. Retired

 

[Formula Indy]

What I find odd is I thought this was the same engine as the mustang and the focus and soon to be bronco. If this was an issue wouldnt the other platform vehicles have the same issue?

I have the same issue, over 12k miles now. My wife has the same engine in her 2020 explorer and it has none of the quirks that my truck has when cold. It was something I checked before we bought it because I knew she was not going to let it warm up and would not be happy with the stumbling etc on start up.

 

[BDUb]

I have the same issue, over 12k miles now. My wife has the same engine in her 2020 explorer and it has none of the quirks that my truck has when cold. It was something I checked before we bought it because I knew she was not going to let it warm up and would not be happy with the stumbling etc on start up.

Funny, my wife has a 2020 explorer xlt with the 2.3 and 10 speed. You are correct it has NONE of the quirks our rangers have. The transmission is buttery smooth 0 stuter and or searching for a gear. The engine doesnt tick / buzz either.

 

[P. A. Schilke]

I have the same issue, over 12k miles now. My wife has the same engine in her 2020 explorer and it has none of the quirks that my truck has when cold. It was something I checked before we bought it because I knew she was not going to let it warm up and would not be happy with the stumbling etc on start up.

Hi Phillip,

You have introduced another difference....The Engineering Calibrator and how they address the driveability and emissions to meet the Gov't regulations. I really think the Ranger Calibrators did a poor job....JMO! Otherwise there would not have been a TSB for Rangers in early builds. All these vehicles have to be evaluated before production on prototypes, but the drive evals do not cover all bases. There is no need for the vehicle to exhibit anything but customer being unaware of any driveability concerns.

When I was heading up Ranger, I participated in al the developemen....Fridge Cold, Broiling hot etc. My peers sat in their offices... These developments flushed out many problems...some minor but we were dedicated to fixing the major ones and then loop back and resolve the minor ones also. There was no need for a TSB for drive and trans on the early Rangers and the TSB correction was NOT Robust. I still have unacceptable cold start issue with my Ranger. The TSB was not an elegant solution.... Granted, I did not have the constraints the current structure of Ford that might force things to be "good enough" instead of perfect!

Best,
Phil Schilke
Ranger Vehicle Engineering
Ford Motor Co. Retired

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