[93stangfutr5.0]

ok i asked this before got a few replys tried the things but they didnt work my cars check engine light seems to come on for a few seconds then go off i have replaced the spark plug with motocraft the ones that were in there were the same and were in good shape, replace air filter, brakes, tires,oil and filter. i know that tires brakes wont cause this but just naming what i have done. what do you guys think would cause this?

[redrocket93]

clean the egr valve(maybe replace)
could be o2 sensor
you should be able to hook up code reader and find out exactly what it is the reader not that much and hooks up under hood real easily

[93stangfutr5.0]

ya i already have it says that the egr valve is causing it (there is another code saying that the rpms change to much during the check) but the light will stay on for a few seconds depends on the rpms then go away and just do this over and over does any one know were i can get an egr valve for less than $80 autozone is a little expensive.

[redrocket93]

have you tried taking it out and cleaning it? that way all you need is a new gasket make you get it to move again

[93stangfutr5.0]

make what move again? the car if so it already does if the egr valve it works sometimes.

[93stangfutr5.0]

ok my haynes manual tells me what it is but that isnt what i need i need to know how to change/remove it and were it is.

[stanged1970]

Hey future5.0,

I'm PRETTy sure the EGR valve is that big canister looking thing that has a hose connected from the exhaust manifold to the intake. You can google for an image, but that's where it is, towards the rear of the engine compartment behind the intake manifold. As far as removing it and cleaning it out, I'm not sure. I'm pretty sure you just disconnect the hoses on each side. I probably need to replace mine since I didn't pass emissions last time I went. When I change it out I'll let you know what I did.

Ed

[93stangfutr5.0]

thats ok i did it last night take some coke a cola put it in a bowl and put the screws in the coke will get rid of most of the rust also took 1/4 in rachet bottom end and pushed up the spring and spun the rachet got most of the carbon build up and now my check engine light doesnt come on.