87SierraClassic
05-05-2007, 04:13 AM
I have a 1987 GMC Sierra Classic and with the EGR valve unplugged the truck runs good untill she gets warm then she wont start, but when its pluged in the truck stalls. So i went out and bought a new EGR valve and put it in and the truck still stalls when its plugged in. Any ideas? Thanks :)