Contour Enthusiasts Group Archives Forums General Troubleshooting knock at 3000 or higher rpms

so last nite i took my car to get an oil change at this place called Casey Automoive...
the MGR comes in with this look on his face..like my car was a child and i had abused her in some way. i liked that. it showed concern for his patients. he says... you know the rear tires are in bad shape? yes, yes i do. i have a bend rear control arm that needs to be replaced and i could only afford 2 out of the 4 tires. the rears will be replaced soon. then he says.. and the check engine light and coolant light? so i explain about the touchy coolant sensor and that there isn't actually a leak. and i tell him about my banks 1 & 2 running lean codes. (171 & 174). this seems to satisfy him. then i ask about the knock...

he says that the knock is related to the CEL codes. says its a bad intake gasket and the sound i here is too much air coming in and its more of a ping than a knock. says its pretty common.

so i think i shall do things in this order... as i couldn't ever find a vacuum leak for the CEL codes...
i will replace the intake gasket and clean the UIM and TB completely.
then i will drop the pan to look for the metal oatmeal. just to be on the safe side.

i really hope this guy is right. i think i would much rather replace a intake gasket than screw with the other option.

cross your fingers everybody.

P.S.
anyone wanna help me remove my intake and replace the gasket????

thanks again guys.

tim.

my SVT only has like 79,000 miles on it but i guess i will try the marvel mystery oil when i change my oil on wedsnday for like the third time in a about 2 months and if that dont work i guess i will take it to my mechanic