Code P050D

rjh1

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#1
Make
jeep
Model
cherokee
Year
2015
Miles
39,000
Engine
2.4 liter
2015 Cherokee 2.4 about 39,000 miles just developed code p050d , Daughter just bought this last thursday , what is the fix for this ? I've been seeing something about re flashing the pcm ?
 
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#2
If purchased from a dealer, and only one week old, I would ask them for a free repair.
 

rjh1

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#3
I'm making that phone call tomorrow , but in the mean time .. will there be drive ability issues ?
 
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#4
P050D – Cold Start Rough Idle

I have not researched his, but I doubt there would be any serious dive ability issues, othe than possibly rough idle.
 

nickb2

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#5
If your daughter just bought it, it would depend on if she got if from the used lot of a Jeep certified dealer, or the used lot of "Joe blows car lot". As one will have reflash capability, the other mostly not. Several things could cause this code. Like speed variations of engine.

  • Worn serpentine belt
  • Misalignment or binding water pump, P/S pump or A/C Compressor pulleys
  • Improper CKP, CMP, or MAP mounting
  • Poor connector/terminal to component connection for CKP Sensor, CMP Sensor, MAP Sensor, Fuel Injector, Ignition Coil, etc.
  • Vacuum leaks
  • Restriction in the air induction or exhaust system
  • Internal engine component malfunction

Or some of the following pid data may help also. Try comparing the AAT sensor, ECT sensor to the IAC sensor. Do they mimick each other.

Other causes,

  • Moisture on ignition system components
  • Insufficient fuel
  • Low quality fuel
  • Manual transmission bog
  • Towing overload
Ignition issues often cause this. Remove plugs, inspect for-
  • Cracks
  • Carbon Tracking
  • Foreign Material
  • Spark Plug gap size out of specifications
  • Loose or broken electrode
  • Fouling

You may get a reflash for free and still get no joy. This is a TSB, not a recall. If you have to pay, You could be paying for a reflash for nothing.

Anyway, here is that TSB in PDF format so you can print it out.

Hope any of this helps. I am assuming that if you got this code, you have live data possibly available. If not, get a live data code reader in the least, will be helpful.
 

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nickb2

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#6
39000miles is not premature for ignition issues, and mostly accompanied with misfire codes, they are the easiest to check out on a 2,4l.

The interval on a 2.4l patriot engine is 32000miles. I am pretty sure it is the same for a cherokee with same engine. Was that done? Like I said, easy to check yourself. Most guy's I know can change a spark plug.

Here is a really good hint I am going to give you. Sometimes, used car lots power wash an engine to make them look good for resale, but wreak havoc on engine controls as water intrudes, get everywhere. I see this day in and day out with problems such as this.

Example, in the past two weeks, we have a new client at the shop. A used car lot. We have started to do thier "warranty" work as they were not satisfied with the other shop doing their after sale work. I have never changed so many ignition coils in such a short period of time. I highly recommended to the car lot owner that he advise his detail crew to stop soaking the engines to make them look new and just use more elbow grease to make the engines shine. In the long run he will save money, his clients will not be pissed off having to bring in the car so shortly after buying the damned thing even if the engine looks brand new.

When I say alot, I mean alot. Just yesterday, two cars from same lot. One BMW, one honda fit. Three ignition coils went south due to shorted coil packs. That not mentioning the other cars over the last weeks with same issues.

Like I said, try new plugs if you suspect they are over 32000miles.

I just checked for the 2015 cherokee 2.4l, the interval is for normal service, not severe. They say to swap plugs at 100000miles. My data did not give for severe usage. Here in northern canada, we always use the severe schedules. Anybody I know who does 39k miles/62000km's in only 2 1/2years is using that engine alot. I call that sever usage and would not go 100000miles on any car with OEM plugs. ;)
 
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