tabascoloco
SILVER Star
Does my truck have an EGR valve?
Your rig has one just like the 80....but they RARELY ever go out...usually the EGR Modulator is plug or faulty...and those usually just need a gentle cleaning...it's atop the engine in a clip....plastic the top part actually comes off and theres a cotton-like filter inside.
Use canned air to blow out....
Later
mike