Pulled and engine code P0404

[jglover716]

The code says EGR Pos Sens Rationality what exactly does that mean? Any input will be helpful


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[JeepinLife]

Means that your egr valve is not closing/opening properly. Try lightly tapping on it or cleaning it. Probably will need replaced.


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[JeepinLife]

Could also be an issue with the wiring. Possible short. Or ground issue.


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[WJCO]

If it's a 3.8l, a good carbon cleaner like 44k may fix it. Our code will stay cleared for months. Been going on for a couple years. When we ran 44k through it, it stayed off the longest.

 

[Vilmars]

I agree with jeepinlife. Egr will need replacement.


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[JeepinLife]

If it's a 3.8l, a good carbon cleaner like 44k may fix it. Our code will stay cleared for months. Been going on for a couple years. When we ran 44k through it, it stayed off the longest.

Actually never used 44k. Is it like sea foam??


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[JDDK]

if you replace the egr, pull the fender liner and spend the 10 bucks for the stubby 3 inch box end wrench. saves hours of cussing

 

[Vilmars]

X2 to this. Especially with an auto trans


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[jglover716]

Thanks for the input everyone going to take to the shop of the dealer I got it from pretty sure it’s under warranty if so saves me from doing the work


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[JeepinLife]

Don’t let em make you buy a new transmission now


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[jglover716]

I’ll be pissed if they try and make me buy a new transmission I’ll pull it and take to my regular mechanic


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[JeepinLife]

I’ll be pissed if they try and make me buy a new transmission I’ll pull it and take to my regular mechanic


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lol there ya go.. that was a joke by the way

 

[jglover716]

I figured it was lol but I can see it happening hahahaha


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[JeepinLife]

I figured it was lol but I can see it happening hahahaha


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I know sad right??? Lol. Let us know when you get her all fixed up


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[enfielded0405]

Never tried 44k. But I had that code come up about a month or 2 ago. Dumped what I left of a can of sea foam in the gas tank on whim. Light went out 2 days later and hasn’t come back. Coincidence? Possibly but from reading it’s a PITA to change so I will hold out as long as I can.


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