Question about Chrysler Cars & Trucks

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I had an oil change where they put in 5w30 oil in my car, I have a Chrysler 300 C and it calls for 5w20 oil. After the oil was changed and I drove off, my engine and the oil lights came on in less than 10 mins after change. I took my car back where I had the oil change, told them what is was now doing after the change, they told me that they put the wrong oil in my car. They changed the oil, and the lights still came on. I took my car to the Chrysler dealers and they did an diag test on it and found that the oil pressure switch sender, pcm flash and the switch-oil pressure were all damaged. Before I took my car to this place, none of these lights were on, now they are telling me that by them putting the wrong oil in my car could not have caused any damage because the difference in the oil's weight is not that big of deal. I would really appreciate some help with this.

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  • 133 Answers

It's true. The oil never passes through the switch, it just comes in contact with it. The dealer sounds like they're taking you to the cleaners, though. I've never heard of a PCM flash being needed for an oil pressure switch. What year is the car? It's either a bad sensor or shorted wires. I checked some forums and it seems pretty common that your sensor fails. The part is relatively cheap and you do not need a dealer to perform the work.

Posted on Oct 18, 2013

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Posted on Jan 02, 2017

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SOURCE: Significant engine damage from oil change

Thank you for asking my assistance. I will try my best to help you.

I have been in the Toyota biz for the last 14 years, and, unfortunatly, have not ever heard of this issue. That being said, I do have connections in the engineering dept at Toyota, and on Monday, I will call out to the west coast and inquire further for you.
Now, to the issue at hand: The shield that was bent down is secured very well to the underside of the valve cover. To bend that device, I can only guess that when the oil was being put into the engine via an oil pump, the nozzle of the pump was *** jammed *** down onto the shield, and broke it loose from the internal retainers under the valve cover, and contacted the cam; this is very possible...I agree with the statement that your SM provided, however, further engine damage? Removal of the oil pan would be in order, to determine if any more pieces are there. Doubt it, though.
And, to answer your last question, the responsibility of the cause for failure is your oil change guy.
He bent/broke the shield, and caused your problem. I hope this has helped, if you have any other comments or questions, please feel free to repost.

Posted on Oct 04, 2008

lebones337
  • 152 Answers

SOURCE: Dodge caliber oil viscosity

no it will not cause any harm over the corse of 3000 miles. 5w30 is just a little thicker. 5 is the thickness when oil is cold. 20 or 30 is thickness when oil i hot, it will be ok just dont do any hotroding. only down part is that if the dealer finds out it will void the warranty.

Posted on Jan 02, 2009

  • 1118 Answers

SOURCE: changing engine oil types from 10w30 to 5w30

If anything i would bump it up to a 10w40 with that kind of milage engine is prety loose, just stick with the same brand of oil just go heaver, i'am not a big fan of 5w30 to me its like pouring water in the crankcase.

Posted on Feb 21, 2009

MNfisherman
  • 11896 Answers

SOURCE: Can putting 10w30 synthetic oil instead of 5w30

5w 30 is much thinner than 10w 30. Most newer vehicles require 5w30

I personally like synthetic oils because the viscocity adjusts with the temperature in all climates and weather. No need to change every season

Posted on Sep 09, 2009

  • 819 Answers

SOURCE: can i use 5w30 instead of 5w20 oil on a 2006

you can but not recommended. the reason for the thinner oil is the tolerances in the bearing races on these engines are very tight, requiring thinner oil. 5w30 is ok for sure if you are going synthetic.

Posted on Nov 13, 2009

Testimonial: "thank you very much. ran across some synthetic oil .. cant complain it was free.."

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