Hi.
I have a k10 2003 had it five years as runabout one owner now it’s judders a lot I have replaced all plugs and ignition coils but she stills judders ..reader says misfiring 3cylinder ..don’t want to keep spending money any help or advice please
You need to get a compression test.. See what each cylinder is putting out>
I cannot tell if its a misfilre as the car not in front of me but if it is misfiring and you've done all the easy stuff get a compression test.
