check light

[302VAN]

my 90 ford econoline 5.0 302 Eng van light comes one stays on and
goes out i took my cp9145 scan tool i keep getting this 332 code
thats egr insufficient egr flow but i went down to auto zone to get
a new 04/14/08 egr valve $84.00 i replaced egr position sensor one or two
years ago i took this one and transfered it to the new one
also i replaced engine coolant temperature sensor on 4/5/08

[Club Wagon]

Did you inspect the supply tube & old EGR for carbon build up?

Did you confirm vacuum was not leaking to the EGR control?

Frequently the EGR doesn't need to be replaced-just cleaned. The supply tube can get plugged w/carbon. Especially on older trucks that may have marginal PCV, may miss an oil change, or be subject to mostly short hauls.

Vacuum lines are notorious for failing.

[302VAN]

Originally Posted by Club Wagon

Did you inspect the supply tube & old EGR for carbon build up?

Did you confirm vacuum was not leaking to the EGR control?

Frequently the EGR doesn't need to be replaced-just cleaned. The supply tube can get plugged w/carbon. Especially on older trucks that may have marginal PCV, may miss an oil change, or be subject to mostly short hauls.

Vacuum lines are notorious for failing.

theres vacuum going to valve the old egr valve did not have sines of carbon
inside that i can see