CarClueless Posted August 31, 2017 Share Posted August 31, 2017 My 2006 ford focus had two advisories on its MOT; Nearside Front constant velocity joint gaiter deteriorated, but preventing the ingress of dirt (2.5.C.1a) and an oil leak. Its also making a horrific screeching sound constantly, that seems worse at speeds of 15-30mph. Are these related? The mechanic said the squeak is due to the new brakes that have just been put on and it will stop soon and if not he will put some axel grease on it. But I'm unsure if that's 100percent the case so I just wanna know could the squeak be related to the advisories I was given a few months ago. My check engine light is also on? Just want to get a bit of advice and any guideline they clearly know I have no car knowledge what so ever so don't want to get the wool pulled over my eyes with it. Thanks Quote Link to comment Share on other sites More sharing options...
Devonboy Posted September 1, 2017 Share Posted September 1, 2017 Axle grease on new brakes doesn't sound right to me. Quote Link to comment Share on other sites More sharing options...
Stoney871 Posted September 1, 2017 Share Posted September 1, 2017 Copper grease maybe?Sent from my SM-G930F using Tapatalk Quote Link to comment Share on other sites More sharing options...
biff55 Posted September 1, 2017 Share Posted September 1, 2017 replacement of CV boot is a common and minor job , nothing to worry about. and theres every chance brakes will quieten down on their own , as your mechanic mentioned. but the oil leak would be my biggest concern , they can be a bugger to pin down 1 Quote Link to comment Share on other sites More sharing options...
BOF Posted September 1, 2017 Share Posted September 1, 2017 18 hours ago, CarClueless said: My 2006 ford focus had two advisories on its MOT; Nearside Front constant velocity joint gaiter deteriorated, but preventing the ingress of dirt (2.5.C.1a) and an oil leak. Its also making a horrific screeching sound constantly, that seems worse at speeds of 15-30mph. Are these related? The mechanic said the squeak is due to the new brakes that have just been put on and it will stop soon and if not he will put some axel grease on it. But I'm unsure if that's 100percent the case so I just wanna know could the squeak be related to the advisories I was given a few months ago. My check engine light is also on? Just want to get a bit of advice and any guideline they clearly know I have no car knowledge what so ever so don't want to get the wool pulled over my eyes with it. Thanks These are probably mostly unrelated to the advisories. The const velocity gaiter needs doing before it does allow grit in because that wll destroy the CV joint after a while and increase the expense. generally though this doesn't cause a screeching unless it is very severely gone and it would be worse when you go round corners in one direction. Brakes can screech but it generally does change depending on whether you are braking or not. Something else that does screech is a slipping drive belt. This does sound horrendous and isn't the most serious thing in the world (you can drive with it for a while) but the charging of the electrical system will be a bit limited. Usually the cure involves cleaning the affected belt (if eg oil has leaked on to it) or tightening the belt. Eventually the belt could need replacing but that doesn't happen much these days. This could be related to the oil leak of course but may not be; it is also usually worse shortly after starting (and may go away if you blip the throttle) when you have high electrical loads and when the weather is wet. If the mechanic genuinely said 'axle grease' you can stop trusting him straight away. As implied earlier it should be specialist brake grease either 'copper grease' or 'ceramic grease' although I suspect that it isn't brakes at all causing the noise unless it depends on braking. The engine check light is a bit worrying; is a service overdue? What about the oil level (partic with the leak)? 1 Quote Link to comment Share on other sites More sharing options...
E TEA 66 Posted September 1, 2017 Share Posted September 1, 2017 I have to agree with the previous comments mentioned already and I agree that finding and curing the oil leak is one of the more important matters that needs resolving 1st as it might not be a serious issue atm but theirs nothing to say it won't become one at some point depending on where it's leaking from so i'd give the engine as good a clean as possible so you can trace the leak easier. As for the cv boot i'd get it sorted before the autumn weather kicks in causing it to deteriorate quicker and squeaky brakes would annoy me to much so i'd whip the pads off and clean and put a little coating of copper grease on the caliper runners as well as putting a smear of the copper grease on the back of the inner pads to quite them down . Quote Link to comment Share on other sites More sharing options...
CarClueless Posted September 1, 2017 Author Share Posted September 1, 2017 2 hours ago, BOF said: These are probably mostly unrelated to the advisories. The const velocity gaiter needs doing before it does allow grit in because that wll destroy the CV joint after a while and increase the expense. generally though this doesn't cause a screeching unless it is very severely gone and it would be worse when you go round corners in one direction. Brakes can screech but it generally does change depending on whether you are braking or not. Something else that does screech is a slipping drive belt. This does sound horrendous and isn't the most serious thing in the world (you can drive with it for a while) but the charging of the electrical system will be a bit limited. Usually the cure involves cleaning the affected belt (if eg oil has leaked on to it) or tightening the belt. Eventually the belt could need replacing but that doesn't happen much these days. This could be related to the oil leak of course but may not be; it is also usually worse shortly after starting (and may go away if you blip the throttle) when you have high electrical loads and when the weather is wet. If the mechanic genuinely said 'axle grease' you can stop trusting him straight away. As implied earlier it should be specialist brake grease either 'copper grease' or 'ceramic grease' although I suspect that it isn't brakes at all causing the noise unless it depends on braking. The engine check light is a bit worrying; is a service overdue? What about the oil level (partic with the leak)? The screech is a lot worse when I take left turns, so maybe it could be the velocity gaitor. However its MOT was only done in April and since then its barely been driven so I doubt it. But as you've mentioned the sipping belt seems to also fit. I'm gonna give it couple of weeks and see if it goes away on its own and its just due to new brakes but if not I seriously need to find a better mechanic. As from my googling I cant find anyone saying that putting axel grease on new brakes is at all a good thing to do. Could it just be rust from the fact its hardly been driven lately? Quote Link to comment Share on other sites More sharing options...
FatHead1979 Posted September 1, 2017 Share Posted September 1, 2017 20 minutes ago, CarClueless said: The screech is a lot worse when I take left turns, so maybe it could be the velocity gaitor. However its MOT was only done in April and since then its barely been driven so I doubt it. But as you've mentioned the sipping belt seems to also fit. I'm gonna give it couple of weeks and see if it goes away on its own and its just due to new brakes but if not I seriously need to find a better mechanic. As from my googling I cant find anyone saying that putting axel grease on new brakes is at all a good thing to do. Could it just be rust from the fact its hardly been driven lately? It's normal for the surface of brake discs to rust a bit if a car is driven for a while. 2-3 fairly heavy stops from 60+ MPH should be more than enough to remove any light surface rust. Quote Link to comment Share on other sites More sharing options...
CarClueless Posted September 3, 2017 Author Share Posted September 3, 2017 On 01/09/2017 at 9:50 PM, 1979Damian said: It's normal for the surface of brake discs to rust a bit if a car is driven for a while. 2-3 fairly heavy stops from 60+ MPH should be more than enough to remove any light surface rust. Okay thanks, ill give it a go! Quote Link to comment Share on other sites More sharing options...
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