Hello everyone. I have a 2003 Ranger 3.0L FFV. I have a newbie question. I have about 98K miles on my truck and the motor has been pinging for the last month or two. I changed the plugs, cleaned the MAF, IAC, and throttle body. Last weekend I ran Seafoam through the brake booster twice and it is still pinging. I have read about the DPFE, but I don't believe my truck has one.
Can someone offer some insight on what else I may try to eliminate the pinging. I don't want to run premium gas, I just want to fix the problem.