Rough idle EGR valve help
My truck has recently started to have a rough idle. it does not happen all the time, but about once a day. My idle RPM is usually about 750. The truck has 148,000 miles, and I bought it about 10,000 miles ago. In the past 6 months I have changed the spark plugs, changed the fuel filter, Cleaned the MAF, replaced spark plugs, replaced the IAC and done a seafoam treatment in the oil, fuel and Vacuum lines. One thing that I think may be the problem is the EGR, however I have no idea where it is on my truck.
If anyone has any tips on what I should check out to fix the problem, let me know
I have a 99 ranger v6 4 liter 4wd
1999 ford ranger XLT V6 4.0L 4X4