Bad EGR valve
 

Do you guys know what happens if i dont replace my Exhaust Gas Recirculation Valve it keeps messing up on me. I take it off clean it out and my check engine light turns off only for about 50 miles though then it goes back on. Then i just repeat the process does that mean it needs to be replaced or what.

Re: Bad EGR valve
 

I did some reading online, and it might be something else, not the EGR valve. I don't remember what it was though. My truck does the same thing. You could just try replacing it though, its an 80dollar part, and a simple replacement to do yourself.
If that doesn't help. Do some online research. You should find what I found

Re: Bad EGR valve
 

Try to clean the valve with a descarbonisation fluid, wash and wait the reside way off the valve.
Don't clean with water, and after the procediment let the valve dry on sun.
:)

Re: Bad EGR valve
 

well i took it to autozone they run some codes on it and it does have something to do with the EGR system and ill take it off clean it with brake fluid and my check engine light goes off only for about 50 miles though im probably just gonna end up replacing it anyways i was just wondering what happens if i ignore it does it get worse or do nothing

Re: Bad EGR valve
 

If you have an emissions test/inspections you will not pass. Other than that it will take a very long time to mess up the engine.

Re: Bad EGR valve
 

what codes are you throwing?

Re: Bad EGR valve
 

fuck if i know man i went up to autozone they gave me the codes but that was like 2 weeks ago dont know where they are anymore

Re: Bad EGR valve
 

I think your Ranger has an older EGR system. There is a small switch (DPFE) that controls the valve. Follow the hose from the EGR forward to the left front side of the engine. The DPFE switch is mounted there. It's a black plastic gizmo with some hoses coming from it. It fails more regularly then the EGR valve. Also, check the vacuum tubing from the switch to the valve. The engine heat cooks them, they crack and then they leak.

Re: Bad EGR valve
 

Be sure the passage in the intake for the egr valve isnt carboned up.