Originally Posted by KW Baraka
So you had the shudder even with the shifter in third gear (Drive) ?
Mmmmm.......wonder if it could be the EGR valve
what if you have no codes and what should i look for on a scanner? what if it a studder shudder at just before 1-2 shift and just after and a just after 2-3 shift shutter?
Will the scanner even show this egr prob as going in and out of open and closed loop?
does going back into closed loop from open loop be a egr prob with no light on?
i think i have a egr prob.
sorry to hi jack..
'92 Astro CS with '95 fresh .030 4bolt 355 LT1, hand ported 374s & intake (David Vizard tech), 10.8:1cr, 1.94/1.5", farmed out EFI 24x, VooDoo 211/219* .507"/.515" w/ 1.7" rr =.574"/583", '92 4L60 w/ '96 S10 torque converter, shift kit & corvette servo, G80 GT4/3.73:1 255/70-15s, 2" front lift, poly bushings, ported Granny's Speed Shop headers, 2 long Cherry Bombs used for resonators, and 2 long Thrush Turbo mufflers, 2001 LS1 pcm; local tune under an Oak tree.
4 year project/swap