E85 or 93 octane with 10% eth? If it's E85 you're probably hearing detonation and you need to drain the fuel and start over.
E85 or 93 octane with 10% eth? If it's E85 you're probably hearing detonation and you need to drain the fuel and start over.
it was 93octane with 10%ethonal. And btw, ethonal is not typical in my area.
Got everything under control now.
Thanks.
http://i121.photobucket.com/albums/o...IMG_2118-1.jpg
1999 Silverado 1500 Z71/5.3 to LQ4 6.0 swap/ CAI/ crappy exhaust/ tuned by COWL327