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Discussion Starter #1
hello I am new here ! I have an 2017 DODGE GC
With 55000 on it ! Well I bought it used with 54000 miles from a dodge dealer ! The car was perfect for a few days, after that I started feeling vibrations while Idling and on P I checked to see if it makes difference on D or on N or R but the vibrations where still noticeable!You can feel the vibrations all inside the car ! Then when I was driving I stopped at a red light and upon releasing the brakes the car start having a jerking motion but it goes away after pressing the gas pedal! I(if you stop and try to go again the car start to jerk again)Well I stopped on side of the road and check the engine and the engine had a bad vibration ! Took the car to dealer and he inspect it and update the computer software! That didn’t fix the problem! When I asked for a paperwork of the service he refuse to give it to me ! As of the jerking of the car he stated that’s normal!!! So I hooked up my OBD reader and there is no codes , when i did I system scan I can see like 30 to 40 misfires from cylinder 2 on a 10 minutes drive! I changed all spark plugs but it didn’t fixed the problem! Also the car has whining engine noise upon acceleration! Also the steering wheel makes a humming noise noticeable only on the inside of the car like you have have the car eat blower on medium! Also I have white smoke and water coming from my exhaust even on a hot day!its really annoying driving the car with that jerking motion on traffic it makes you sick to the stomach! Also I have no codes or engine light is not on ! I cleaned the throttle body and no change !
View: https://youtu.be/RFL7BDa-SKk


And that’s what my Rpms look like
View: https://youtu.be/QjTykIn92Lk
 

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Discussion Starter #3
hello I am new here ! I have an 2017 DODGE GC
With 55000 on it ! Well I bought it used with 54000 miles from a dodge dealer ! The car was perfect for a few days, after that I started feeling vibrations while Idling and on P I checked to see if it makes difference on D or on N or R but the vibrations where still noticeable!You can feel the vibrations all inside the car ! Then when I was driving I stopped at a red light and upon releasing the brakes the car start having a jerking motion but it goes away after pressing the gas pedal! I(if you stop and try to go again the car start to jerk again)Well I stopped on side of the road and check the engine and the engine had a bad vibration ! Took the car to dealer and he inspect it and update the computer software! That didn’t fix the problem! When I asked for a paperwork of the service he refuse to give it to me ! As of the jerking of the car he stated that’s normal!!! So I hooked up my OBD reader and there is no codes , when i did I system scan I can see like 30 to 40 misfires from cylinder 2 on a 10 minutes drive! I changed all spark plugs but it didn’t fixed the problem! Also the car has whining engine noise upon acceleration! Also the steering wheel makes a humming noise noticeable only on the inside of the car like you have have the car eat blower on medium! Also I have white smoke and water coming from my exhaust even on a hot day!its really annoying driving the car with that jerking motion on traffic it makes you sick to the stomach! Also I have no codes or engine light is not on ! I cleaned the throttle body and no change !
View: https://youtu.be/RFL7BDa-SKk


And that’s what my Rpms look like
View: https://youtu.be/QjTykIn92Lk
Yes they look good
 

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The only other thing I can think of is u-joints, and your GC is front-drive, so that doesn't apply.

As for the misfires, it could be a bad wire. It could be several other things; does your GC have a distributor? If so, you might check the cap and rotor.
 

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Discussion Starter #5
The only other thing I can think of is u-joints, and your GC is front-drive, so that doesn't apply.

As for the misfires, it could be a bad wire. It could be several other things; does your GC have a distributor? If so, you might check the cap and rotor.
I don’t have a clue If it has a distributor!!!and why the ecm don’t show any codes for the misfires?
 

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Welcome to Allpar. No distributor. You may need to escalate this at the dealer. Read your warranties and consumer protection materials in your contract. Was this a Certified used car?
You are out of the basic 3/36 warranty, but is your powertrain warranty still in effect? Any extended service contract come with it?
It is important to sign and get receipts for any work performed on the vehicle. Without documentation or a paper trail, you have little to go on with FCA or a courtroom.
If the PCM is at the latest software revision and you were counting #2 cylinder misfires on a scan tool, this is important diagnostic information. If it hasn't set a misfire code yet, have them scrutinize the OBDII misfire monitor for a misfire count and which cylinder is misfiring.
If you can, arrange to meet with the service manager to explain the issue, sign a repair order and have the manager follow the repair situation through the shop. Is your salesperson aware of the issue? Alert them as to the situation when you bring the vehicle back in for service.
 

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Discussion Starter #7
My 3 /36 warranty is out but I still have like 3000 miles on powertrain left! I tried to talk to the manager but he is the one telling me that the car is suppose to work that way(he said that the torque converter don’t have enough hydraulic pressure and that’s why it jerks)Lol!i took the car to a different dealer to diagnose the car but he said the problem has to get a lot worse to diagnose! Like my car to break down! He didn’t say anything about the car jerking!It was a certified vehicle , and i also purchased a 3 year extended warranty!
 

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I have set up an appointment for the car to go to the first deal (the one I purchase the car from)on Wednesday any help on how to address the situation?oh and my salesperson told my to use gas treatment from autozone .
 

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I don’t understand why I get treated that way ! Or why they trying not to fix the car by telling me it’s normal! My baby wakes up when I stop at a light from the jerking ! I really don’t know what to do
 

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I don’t understand why I get treated that way ! Or why they trying not to fix the car by telling me it’s normal! My baby wakes up when I stop at a light from the jerking ! I really don’t know what to do
If they tell you it's normal, ask them to let you drive another van in their inventory to see if it does it. "They all do it" is the oldest excuse to avoid repair work in the industry.

It is possible it could have bad gas/moisture in the gas so the gas treatment idea might have a little merit.
 

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Discussion Starter #11
You know what ? I I am so desperate that I tried it ! I have use like 3-4 full tanks since I bought the car and treatment didn’t work!
 

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If the service manager is unable or unwilling to assist you, move up a level to the dealer principal (owner). You can ask for an appointment with the district service manager the day when they are at the dealership. They may want to drive the car.
There is an 800 phone number for customer assistance.
Chrysler has an arbitration process, if it comes to that:
https://www.ncdsusa.org/documents/Consumer Arbitration Brochure.pdf
There is also a member here on Allpar from FCA that assists members with possible warranty/service dissatisfaction issues. Their name escapes me at the moment.
 

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The poster is @OfficialMopar.
I've reached out to them for a couple of issues over the years, but did not get any response.
 

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Thank you all for the time you all take to look at my problem! What that arbitration do? I also have 15000 $ on car payment left on it for a car that is so unpleasant to drive ! On my first days after purchasing the car was so smooth and my family was so happy! Now the car brings me white hair on my head and bad dreams ... lol! I am gonna keep you all posted after I dropped the van off to the stealer !
 

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why the ecm don’t show any codes for the misfires?
I wish that my Dakota would give me more information than it does. The fact that it doesn't won't eliminate electric or electronic problems, but it may be a hint that you should first look for a mechanical problem. Your initial description seems to indicate that it's somewhere in the front suspension, though it may have an additional performance issue. Perhaps one of the experts could share whether your GC has CV joints, and if they cause vibrations after enough wear. Or, it could be as simple as a vacuum leak.

my salesperson told my to use gas treatment from autozone .
When you go to the dealer for problems, stay away from the sales people. At this point, it's best to deal with the service department. Since you bought the extended warranty, ask for a loaner. You might give them a list of the potential solutions that were mentioned in this thread.

Just any gas treatment won't help. If the problem is with clogged fuel injection, use fuel injector cleaner. If the problem is with carbon deposits, use engine cleaner. Octane booster will eliminate ping during acceleration, but so will using a higher grade of gasoline. They even have catalytic converter cleaners, though they're expensive. I doubt that any of these treatments will end your vibration, though.

I forgot to ask about the oil. Is the level high enough? Is it relatively clear? Do you see any leaks underneath the vehicle?

Also, you mentioned the torque converter. Does it have enough transmission fluid, and what is its condition? For your vehicle, only ATF+4 should be added.
 

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I have done an oil change recently ! I also paid for another diagnosis but they found everything ok! I ask about transmission fluid they said it does not need any! I found the silicon gasket from the transmission pan having a leak but I don’t think is the cause ! The leak is minor !
 

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Also the jerk movement happen when slowly releasing the brake and almost 1-2 Mph speed ! The jerks also appear when slowing down to almost complete stop ! If you let the car roll by it’s self like when you are at traffic the jerks getting really bad !even when the brake is not pressed!
 

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That sounds very much like a u-joint, except your GC doesn't have one. I still lean toward replacing at least one motor mount. Someone else will have to say whether a CV joint could be the cause.

As for the trans fluid leak, keep a close eye on it. You might be able to tighten the pan bolts enough to end the leak, but it's more likely that the gasket will need replacing.
 

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I checked several Chrysler powertrain diagnostic manuals for 4 cylinder and V6 engines. Typically an individual cylinder misfire code is set when a misfire rate exceeds 1 - 2% during 2 trips or misfire rate exceeds 10 - 30% in one trip. So your engine is close but is not exceeding the programmed misfire rate so no telltale code is set. But you still are getting a vibration from the misfires depicted on a scan tool.

Back in year 2011 when the Pentastar V6 was first released, a small number developed cracks around cylinder #2 and rough running and misfires occurred. Supposedly the manufacturer replaced engine heads to remedy the problem but it could be possible your engine is developing this issue???

You have replaced the spark plugs but the slight misfire continues. This engine uses individual coils mounted atop the spark plugs. I would suggest moving the coil on cylinder #2 to #4 and see if the misfire moves to cylinder #4. If it does then the issue is traceable to that particular coil.

If you swap #2 and #4 coils and the misfire continues on #2 cylinder, swap the fuel injectors between #2 and #4 cylinders. Again if the misfire moves to cylinder #4 then the fuel injector is causing the misfire. If the misfire continues on #2 cylinder then the cause lies elsewhere.
 
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