colsoncj

I got to fix my mom's 94 4Runner when I fly home. She needs the EGR valve changed out. Anyone done this before and have any words of wisdom?

The Rusty Gear

Heat the nuts to get them off. They can be a real bear.

KevyWevy

if you do a search, you'll get to hear some great stories of how hard it is to get to it! i haven't done it, but was looking into it and everybody said it was a huge PITA

934rnr

Liquid wrench and a large adjustable cresent got mine off.

Highland Runner

How do you know its needs to be changed? I did mine years ago by grabbing it from under the intake manifold. Major PITA. When it comes out it looks to be in perfect condition. Needless to say I was pissed. Remember hearing somewhere later it doesn't really need changing, and thats why its not very accessible. Kind of like the fuel filter-it doesn't hurt to change but is not always necessary. Seems like there is a rubber grommet also, and don't remember if it comes with the valve.
I'd like to hear what others' valves looked like when they got them out. Just curious.

934rnr

From what I have heard it''s usually that round plastic filter part next to the egr that gets clogged or the egr tube leading to it that fills with carbon deposits. I can hear mine functioning and opening and closing pretty easily since my intake is plumbed differently and I have a separate filter on mine.

colsoncj

its leaking exhuast gas (and noise) under certain conditions. the sound is coming directly from the vicinity of the valve. I haven't been home in a long while and it was doing it when i left. I'm assuming my mother has had someone take a look at it and verify thats the problem, but im not sure. i was just informed i need to change the valve for her.