Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Performance Upgrades - Maintenance - Modifications - Problem Solving - Off-Road - Street Trucks. Covering the Explorer, ST, Sport, Lincoln Aviator, Sport Trac, Mercury Mountaineer, Mazda Navajo, Ford Ranger, Mazda Pickups, and the Aerostar. Featuring H.I. - Human Intelligence.
Join the Elite Explorers for $20 each year. Elite Explorer members see no advertisements, no banner ads, no double underlined links,. Add an avatar, upload photo attachments, and more!.
I replaced my egr valve plus gasket and it is better but my Lt fuel trims are still near the +20s. I knew I had a leak in that area after using my diy smoke test. Where else can the vacume leak be? I have check all hoses and even replaced some of them. I know it is a vacuum leak because as I raise the rpm my fuel trims decrease. Being though I have an 04 it is a fully electronic throttle body with no separate IAC. Plugs and wires I doubt are going to do anything for me because I have no misfire codes. Although the codes are "lean" the engine isn't running "lean". It is actually running super rich. There reason why it says lean is because the pcm is adding more fuel due to a vacuum leak and therefore is out of parameter.
I wish I had a fix. It has been to cold here lately for me to look into the problem farther. I already did everything I could think of. I really need to run the smoke test again. I just keep my code reader on hand and keep resetting the code. I'm hoping to fix the problem within the next few weeks.