Wondering why there is a low idle and shuddering while switching gears?
I have a low rpm but I replaced the plugs then it
ran fine for 10 miles, but now I am back at the start
with a shuddering low idle when ever I switch
gears it also lowers to low idle with shuddering.
But when I am driving it likes to drop gears when
no pressure is imputed on the gas pedal or and
incline ? Need help