05 suburban shudder is it gas related?
Mine does the same thing as soon as I
get to 45mph it shudders if I take my
foot off the gas it stops but if I keep
pressing on the gas pedal up to 70mph
it will shudder the whole time after
70mph it doesn't shudder.I have tried
the tires the u joints and its not the
drive shaft....it started when I noticed
my truck jerking like gas was being
pushed through more then I was
asking for and now that went away but
it shudders..I have heard noise from
underneath but I think that's because it
shudders so bad...oh and it doesn't do
it if I'm coasting only if I'm pressing the
pedal for gas at 45-70mph help?