Pursell1911 Posted December 13, 2017 Report Share Posted December 13, 2017 Hey_everyone Please_don't_mind_the_underscores_I_can't_use_the_space_bar_when_i'm_using_Microsoft_Edge_browser. I_have_an_06_Grand_Prix_GT.__Sometimes,_when_I_am_at_a_red_light_with_my_foot_on_the_brake_I_feel_a_vibration_in_the_steering_wheel.__When_I_let_off_the_brake_and reapply_pressure_it_will_go_away.__It_looks_like_my_brake_fluid_is_at_an_acceptable_level,_just_not_sure_what_to_check_next. Strange, now my space bar works. Thanks! Quote Link to comment Share on other sites More sharing options...
digitaloutsider Posted December 13, 2017 Report Share Posted December 13, 2017 How hammered are your engine mounts? You don't have poly ones, do you? wstefan20 and Imp558 2 Quote Link to comment Share on other sites More sharing options...
wstefan20 Posted December 13, 2017 Report Share Posted December 13, 2017 Agreed. Check the engine mounts first. Is this the only time that this happens, and are there any other symptoms? Imp558 1 Quote Link to comment Share on other sites More sharing options...
Schurkey Posted December 13, 2017 Report Share Posted December 13, 2017 Failed mounts...maybe. Failed brake booster...maybe. Engine needs tune-up...maybe. Imp558 1 Quote Link to comment Share on other sites More sharing options...
Imp558 Posted December 13, 2017 Report Share Posted December 13, 2017 And a fourth, sounds just like by poly engine mounts. You probably have a wrecked mount. Quote Link to comment Share on other sites More sharing options...
scottydoggs Posted December 13, 2017 Report Share Posted December 13, 2017 poly mounts vibrate pretty good. im with the rest, mounts are bad and or needs a tune up. pop the hood, then shift the car running from P to R to D back to R watching how much the engine moves, if its bouncing more then a inch or two mounts are bad for sure. Quote Link to comment Share on other sites More sharing options...
Pursell1911 Posted December 13, 2017 Author Report Share Posted December 13, 2017 Thank you all for the suggestions. Its' a pretty faint vibration, and from what I've heard regarding failed mounts, the vibration is pretty bad. I will most definitely check what you've described, Scotty. I will report back with what I find. Wstefan20 - No, this is the only time I notice the vibration in the steering wheel. When I'm at a red light. I failed to mention that I also hear a noise. It's a pretty fast (300 beats per minute roughly) almost clunk noise, but it's not very loud. I'm assuming it's something to do with the brakes as it only occurs when my foot is on the brake pedal. I haven't really noticed a degradation in braking performance though, yet at least. But again, thank you all for the suggestions and input, I will check when I have some time and will post back what I find. Matt P. Quote Link to comment Share on other sites More sharing options...
wstefan20 Posted December 13, 2017 Report Share Posted December 13, 2017 Well unless I'm misunderstanding, there's nothing moving in the bake system at a complete stop unless your abs is firing, which would be very strange and highly unlikely. More likely is that the vibrations don't transfer until the car is "firmed up" by the brake being applied. My money is on engine or transmission mount Quote Link to comment Share on other sites More sharing options...
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