Just bought a new 06' Silverado 4x4 with the aluminum 5.3 liter to replace
my 99' K1500 5.7 liter. I really like the truck so far, it actually gets a
little better mileage than my old truck. I only have a few hundred miles on
it and just made my first expressway ride with it, I noticed that the
steering wheel shimmies and the brake pedal pulsates if I hit the brakes
pretty good at 75 mph or so. My guess is that the rotors may be warped. Is
this by any chance a common issue with the 06' models?
I own a 2000 Silverado 4x4 5.3 with the thick front rotors.....
This truck has the thick front Rotors...... Great, should last
However they can chip & corrode with time..... 6 yrs in my
Let they break in 'Gradually' before you beat them or heat them
As the high spots wear off... The brakes should get better...
Not sure how long it was there, but I would imagine for several months. I
plan to take it in at the end of next week. I have to drop it off to get a
spray in liner done that I negotiated with the purchase. Was just curious if
this truck was known for rotor warping issues.
I tend to agree with this. It likely surface rusted and then when you
braked the rotor had differeng frictonal coefficents on it that caused
hots spots that can lead to warpage. If they are warped, do not let
them just turn them flat because you will wind up with rotors of
varing thickness and different cyrstaline structure and they will be
more prone to warp again. Get them replaced if they are warpd and
insist on nothing less.
Depending on use/abuse it may be a common issue with disc brakes period.
When I first had my Suburban, I conscientiously hosed off the undercarriage
after every day on a salt water beach. Took me about two weeks to warp the
rotors - being too dumb to realize that I shouldn't spray cold water on hot
I've heard... but don't know... that rotors can even be warped by running the
vehicle through a puddle when they're hot.
I have something similar on my '05 Colorado. I think it the way the anti
lock braking system works. I think I read that somewhere. I only
happens stopping at hi speeds. I think I am going to have the dealer
check it out anyway
Your statement above " the brake pedal pulsates if I hit the brakes
pretty good at 75 mph or so." makes me think the pedal pulsating could be
the ABS system doing it's job, but that shouldn't make the wheel shimmie.
Does the wheel shimmie all the time at 75, or just under braking?
It's not the ABS, just good old fashioned brake pulsating from what I'm
assuming to be rotors warped. As Shep stated in his post it's a good chance
that they were very rusty from sitting on the lot. Steering wheel only
shimmies when the brake pedal pulsates so one is a cause from the other.
I also would agree with the warped rotors. Rust build-up from sitting
usually wears off pretty quick. I would almost suspect that someone
test-drove it like a rented mule and did some really hard braking before the
brakes and rotors were properly broke in.
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