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rktekt 05-02-2013 04:56 AM

3.6 Petrol WK 2012 - Sluggish After 12km Service
Greetings All,

I'm a newbie to the forum and to jeep's in general.

I have just had the 12km service done and I have noticed the trottle response very sluggish. Often the pedal has to go all the way to the floor for it to kick back and haul ass. This is very contrasting to how it was before the service.

Also, looking at my worksheet invoice, the oil used was 10/30, does this sound right?

Very disappointed Jeep Owner

2012 Summit 05-02-2013 05:31 AM

Re: 3.6 Petrol WK 2012 - Sluggish After 12km Service
5W30 is correct for the 2012 V6. I doubt the 10W would make a noticeable difference in throttle response though.

The 10W30 might be okay in warm weather, but I would have it drained and the correct oil put in.

In 2013 Chrysler decided to change the oil recommendation to 5W20, but you should stick with what is indicated in your owners manual.

rktekt 05-02-2013 05:59 AM

I will raise the Oil issue with then when i take it back tomorrow, also doubt that it's the culprit for the sluggish ride.

I got overtaken by a Kia this evening - not happy

jerkylips 05-02-2013 07:20 AM

If they disconnected your battery for some reason,I wonder if some of the "learning" functions were reset?

rktekt 05-02-2013 07:23 AM

Learning? If that's the case it would have driven like a dog straight from the dealer.

If they disconnected the battery, perhaps all my radio settings and things like that would have been wiped.

Is anyone aware of any software upgrades that are done at the 12km service?

padgett 05-02-2013 07:55 AM

Re: 3.6 Petrol WK 2012 - Sluggish After 12km Service
What is done and whether 10w-30 is a good idea depends on where you are. In Canada,no. In Mexico maybe. With the 100 days of summer arriving in Florida, it would be fine here.

Today's computers have a lot of inputs so the first issue is whether any error codes have been set.

Next I'd observe the throttle positions recorded vs actual reading (your GC is "fly by wire", there is no physical connection between foot and throttle body).

Both can be done using the OBD-II connector and proper software/dongle (from Amazon for under $25 if you have a notebook/netbook/ultrabook PC - plug).

Without that you migght as well take back to the dealer and ask for help, there is not much you can do.

rktekt 05-02-2013 08:14 AM

Hmmm, I'm in Sydney Australia - heading into winter but it doesn't snow here.

Yeah I think I have resigned my only chance of a sleep in to head down to the dealer and get them to sort it out.


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