Codes PO736, PO841, P1776, PO300 and PO700

JESSE FRANK

MEMBER
2002 CHRYSLER 300
159,000 MILES

When I'm driving, and go to slow down it chunks and wont let me in 4th. I rest the computer. And it didn't do it again for maybe an hour. But as soon as the check engine light comes back one it starts doing it again. I had a guy I know who is a mechanic tell me that Chrysler is real bad about there ground wires messing up. And about have of the codes are for low voltage. Is it possible for that to make theses codes pop. The codes are po736, po841, p1776, po300, po700. Thanks

3 Replies

ASEMASTER6371

MECHANIC
52,797 POSTS

Good morning,

I attached possibilities for you. The gear ratio concerns me. That is an indication of slipping internally.

https://www.2carpros.com/articles/automatic-transmission-problems

There are codes for electrical but they need to be tested.

https://www.2carpros.com/articles/how-to-check-wiring

My opinion is it could be the valve body.

I would start by changing the fluid and filter and see if that helps. It could be a sticking valve.

https://www.2carpros.com/articles/how-to-service-an-automatic-transmission

Roy

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Wednesday, April 15th, 2020 AT 7:12 AM

JESSE FRANK

MEMBER
8 POSTS

I have changed the transmission fluid and filter. It did no good.

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Wednesday, April 15th, 2020 AT 7:16 AM

ASEMASTER6371

MECHANIC
52,797 POSTS

Okay, then you have an internal issue in the transmission.

I would have someone look at it and give you there opinion.

They will need to do testing on the pressures starting with main line pressure to be sure the front pump is delivering enough pressure for the transmission to work properly.

Roy

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Wednesday, April 15th, 2020 AT 7:45 AM