front wheel bearing, intremittent slight squeeking |
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front wheel bearing, intremittent slight squeeking |
tomh |
Aug 28 2010, 10:18 PM
Post
#1
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Member Group: Members Posts: 322 Joined: 28-February 10 From: san jose Member No.: 11,412 Region Association: None |
about every 4th-5th time i drive the car their is a slight squeeling coming from the front left.
could this be a bad bering or maybe it is just starting to dry up? It usualy just goes away in a few minutes then I forget about it till i hear it again several weeks later. What should I try first? |
realred914 |
Aug 30 2010, 11:31 AM
Post
#2
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Senior Member Group: Retired Members Posts: 1,086 Joined: 1-April 10 From: california Member No.: 11,541 Region Association: None |
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simple diagnositc is to safely jack up and support car to get the suspect wheel off ground. then do some tests. 1. test whhel bearing by rocking the tire from teh 6 and 12 oclock position there shoudl be some little bit of bearing freeplay, if you get lots of rocking it is bad, if ti si rock stiff, it may be adjust to tight. usually a failing bearing will gett looser and looser. 2. to test for draggin brakes, have the brakes stomped on really hard (make sure car is frimly supported, dont be under any part when person is inside the car) then release them, and rapidly right away spin the wheel, note any drag. then wait three and a half minuites or so and spin wheel again, and ask, does the wheel spin easiar after the wait time than when spun immediatly after the hard brake application??? if the answer is it spun easy after the wait time, and was dragging in teh immediate spin test, then you have residual brake fluid pressure causing the braek to drag. often old rubber hoses will restrict flow, they swell internally then act as a check valve, high pressure fluid flows one way then brake applyed, but the low pressure return after brakes let off is a slow prosses thru the collapesed hose. also could be hung up caliper rubbers or rusty pistons, to test if hoses, bleed the brakes, you will find constricted hoses will offer a lotmore resistance when the bleeder is open to pumping than hoses that are free and clear you can remove teh pads, and pry the piston back in some and then with pad installed again, press on brakes, this will move pad thru a big range, do this several times, this may free up some sticky caliper pistons. 914914914914914 |
tomh |
Sep 1 2010, 10:01 PM
Post
#3
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Member Group: Members Posts: 322 Joined: 28-February 10 From: san jose Member No.: 11,412 Region Association: None |
(IMG:style_emoticons/default/av-943.gif) (IMG:style_emoticons/default/sawzall-smiley.gif) (IMG:style_emoticons/default/flag.gif) (IMG:style_emoticons/default/driving-girl.gif) (IMG:style_emoticons/default/first.gif) (IMG:style_emoticons/default/chowtime.gif) (IMG:style_emoticons/default/cheer.gif) (IMG:style_emoticons/default/aktion035.gif) (IMG:style_emoticons/default/headbang.gif) (IMG:style_emoticons/default/driving.gif) (IMG:style_emoticons/default/piratenanner.gif) (IMG:style_emoticons/default/pray.gif) (IMG:style_emoticons/default/welder.gif) simple diagnositc is to safely jack up and support car to get the suspect wheel off ground. then do some tests. 1. test whhel bearing by rocking the tire from teh 6 and 12 oclock position there shoudl be some little bit of bearing freeplay, if you get lots of rocking it is bad, if ti si rock stiff, it may be adjust to tight. usually a failing bearing will gett looser and looser. 2. to test for draggin brakes, have the brakes stomped on really hard (make sure car is frimly supported, dont be under any part when person is inside the car) then release them, and rapidly right away spin the wheel, note any drag. then wait three and a half minuites or so and spin wheel again, and ask, does the wheel spin easiar after the wait time than when spun immediatly after the hard brake application??? if the answer is it spun easy after the wait time, and was dragging in teh immediate spin test, then you have residual brake fluid pressure causing the braek to drag. often old rubber hoses will restrict flow, they swell internally then act as a check valve, high pressure fluid flows one way then brake applyed, but the low pressure return after brakes let off is a slow prosses thru the collapesed hose. also could be hung up caliper rubbers or rusty pistons, to test if hoses, bleed the brakes, you will find constricted hoses will offer a lotmore resistance when the bleeder is open to pumping than hoses that are free and clear you can remove teh pads, and pry the piston back in some and then with pad installed again, press on brakes, this will move pad thru a big range, do this several times, this may free up some sticky caliper pistons. Ok this weekend when I get back from a work trip I will pop off the front wheel caps off and at least check the outer berings.will this give me a basic idea of the condition of both berings?I am rueling out brakes because they are only 6 months old with new braded lines,also the squeek does noy change when brakes are applied. Does the grease cap remove witha channel lock or does it pry loose? 914914914914914 |
tomh |
Sep 1 2010, 10:05 PM
Post
#4
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Member Group: Members Posts: 322 Joined: 28-February 10 From: san jose Member No.: 11,412 Region Association: None |
(IMG:style_emoticons/default/av-943.gif) (IMG:style_emoticons/default/sawzall-smiley.gif) (IMG:style_emoticons/default/flag.gif) (IMG:style_emoticons/default/driving-girl.gif) (IMG:style_emoticons/default/first.gif) (IMG:style_emoticons/default/chowtime.gif) (IMG:style_emoticons/default/cheer.gif) (IMG:style_emoticons/default/aktion035.gif) (IMG:style_emoticons/default/headbang.gif) (IMG:style_emoticons/default/driving.gif) (IMG:style_emoticons/default/piratenanner.gif) (IMG:style_emoticons/default/pray.gif) (IMG:style_emoticons/default/welder.gif) simple diagnositc is to safely jack up and support car to get the suspect wheel off ground. then do some tests. 1. test whhel bearing by rocking the tire from teh 6 and 12 oclock position there shoudl be some little bit of bearing freeplay, if you get lots of rocking it is bad, if ti si rock stiff, it may be adjust to tight. usually a failing bearing will gett looser and looser. 2. to test for draggin brakes, have the brakes stomped on really hard (make sure car is frimly supported, dont be under any part when person is inside the car) then release them, and rapidly right away spin the wheel, note any drag. then wait three and a half minuites or so and spin wheel again, and ask, does the wheel spin easiar after the wait time than when spun immediatly after the hard brake application??? if the answer is it spun easy after the wait time, and was dragging in teh immediate spin test, then you have residual brake fluid pressure causing the braek to drag. often old rubber hoses will restrict flow, they swell internally then act as a check valve, high pressure fluid flows one way then brake applyed, but the low pressure return after brakes let off is a slow prosses thru the collapesed hose. also could be hung up caliper rubbers or rusty pistons, to test if hoses, bleed the brakes, you will find constricted hoses will offer a lotmore resistance when the bleeder is open to pumping than hoses that are free and clear you can remove teh pads, and pry the piston back in some and then with pad installed again, press on brakes, this will move pad thru a big range, do this several times, this may free up some sticky caliper pistons. Ok this weekend when I get back from a work trip I will pop off the front wheel caps off and at least check the outer berings.will this give me a basic idea of the condition of both berings?I am rueling out brakes because they are only 6 months old with new braded lines,also the squeek does noy change when brakes are applied. Does the grease cap remove witha channel lock or does it pry loose? Ok this weekend when I get back from a work trip I will pop off the front wheel caps off and at least check the outer berings.will this give me a basic idea of the condition of both berings?I am rueling out brakes because they are only 6 months old with new braded lines,also the squeek does noy change when brakes are applied. Does the grease cap remove witha channel lock or does it pry loose? 914914914914914 |
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