Trouble codes: P 0300 and P 0700

HALMAN · **Posted:** Tue Dec 15, 2009 11:12 pm

Wife came home from work and said our '04' Jeep Libby Sport was acting up.

Started on the way home doing 65mph the Jeep acted like it was losing power. When she came to a stop and started up again the Jeep hesitated and lurched for a bit then power resumed. This happened after every stop and start.

Codes listed as Multiple cylinder misfire for the 0300 and Transmission control system (MIL required) for the 0700 code. What is MIL?

I'm guessing PCM replacement?

Can anyone offer and opinion as to what caused it?

Also, what am I looking at in $$$ to get it fixed?

Thanks for your help.

HALMAN · **Posted:** Thu Dec 17, 2009 10:12 am

WOW, no one has a reply huh?!?

THANKS!

QuestMan · **Posted:** Thu Dec 17, 2009 11:24 pm

I don't remember, for sure, but I believe those were the codes I had when I had a bad transmission control module. I had just had the tranny rebuilt and it went off within two weeks. Since it wasn't the original problem, it wasn't covered. I had a new one installed at a tranny shop for about $230, which was a heckuva lot less than the stealer wanted. Take it to a good transmission shop in your area, and see if they can help.

QuestMan · **Posted:** Thu Dec 17, 2009 11:25 pm

Please ignore my last post. The code that I had was p0706, which was a bad transmission range sensor. Sorry I can't help, but I'm not sure what the 0700 and 0300 codes are. :oops:

Although, if p0300 is a multiple cylinder misfire, it could end up being one or more of your ignition control modules (about $24/each). In any case, disconnect your battery for a minute to clear the codes, and see if they come back.

Trouble codes: P 0300 and P 0700

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