Welcome to the 4x4Wire!

I think the EGR valve is located along the left hand side (drivers side) on the lower plenum portion of the intake manifold. I have 2 89s and 2 90s in the yard, but have not confirmed the latter have EGR valves. Both 89s are so equipped.

Cheers,
Russell


1987 Raider - Roxy
1988 Mighty Max 2.6L Turbo - Pearl
1997 Mountaineer V8 - Freddy
2000 Excursion V10 - Freya