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Replace the fuel filter, PCV valve and check the hose elbows while your at it. Change the air filter too if needed and run a bottle of Techron fuel injector cleaner thru it.
oh i guess i forgot to mention i did do fuel filter...also bought a K and N i will put in tonight...and injector cleaner i also did....man i forgot all these things...
but what a PCV valve? i never did that...does someone have a guide on how to change/clean it?
also what about throttle body? can i just use regular throttle body cleaner?
the pcv valve should sit on the left valve cover right on the top. its not bad at all. as for the throttle body cleaner, do not spray it directly into the throttlebody. for some reason ford made their IAC valves extremely sensitive to TB cleaners. we used to use them at the ford dealer i used to work at and then a few weeks/month later the truck would come back with a terrible idle.
what i would do is get a toothbrush you dont use anymore and spray it down with some cleaner, then hold blade open with your hand and thouroughly clean the bore. then take a clean shop rag and wipe out all excessive carbon. it should look brand new when your done.
haha two things i don't know what they are Big Bad...whats a "EGR" and whats a "Plenum"
and where can i find them...and what should i clean them with?
THNX
Duggy
EGR is the exhaust gas recirculating valve. It is a round, black metal thing with a vacuum line on the top of it that sits on the left side (the engines left side or driver side) of the upper intake plenum right by the TB. You'll have to remove your upper plenum engine cover to see it most likely. It also has a steel tube that connects it to the left side exhaust manifold.
The upper intake plenum is the 90 degree aluminum elbow that connects your TB to the lower intake manifold. These engines are bad about carbon clogging up the EGR ports in the upper intake plenum and causing some pinging at part throttle along with other driveability issues. Also, if the ports are 75% or so clogged it will not throw an insufficient EGR flow code and will still pass the vacuum test while still possibly causing some minor drivability issues.
Cleaning the EGR ports will require something physically strong, like a small chisel or screwdriver, to clear the ports of the carbon build up. Afterwards, I like to use a small wirebrush along with a brake cleaner or other solvent to get the remaining carbon out. The cleaner you get the ports the slower the carbon builds up. Good luck!