Picked up a 530 w/115K. Has a shudder/loss of power on load.
First the plugs which no one carries around here in central CA. Kragen will order the f7 for 10.99 each.. Yeah right.
Also looking at coils and here's where I dunno. most are proper 12 13 1 703 359 but first two up front on pass are 3360 not 3359. I cannot even find the part on OEM.com or anywhere to see what application it's for. Plugs look similar to others w/correct coil. Could these two coils be the culprit for shudder loss of pwr on load? and does anyone know what car they might go on?