Hi guys

My 2000 Grand Voyager (UK RHD) is making a 'grinding' noise when braking, but only as the car comes to a halt i.e. brake performance is generally great - it's the finaly 'delicate' braking that causes the noise - it sounds and feels like it is front driver's side ( hearing it from inside and outside the car) and can be felt through the pedal. It seems worse when braking whilst turning right. The rear pads have recently been replaced - it only just passed it's MOT so was concerned about the noise - I've had it back to the garage twice now and they insist the front pads and discs, whilst worn, do not need replacing.

I took the front wheels off at the weekend - the pads and discs do seem okay - noticed however that the smaller gater clip from the passenger side outer cv joint had come off. The gater was intact, and had clearly lost some grease, so the garage regreased and replaced the clip for me free of charge - was hoping that might have something to do with my problem but alas it hasn't- I still have the noise.

They are now guessing is might be ABS related, possibly a pump problem - but they advised I take it to an ABS specialist garage before buying a pump. I don't really want to spend serious money on the car - especially a guesswork - I was hoping that someone may have resolved this problem before.

Any advice greatly appreciated

Many thanks

Mike

 

PS. No ABS warning light showing.

 

Hi guys

No reponses so far - but a small update. I spoke to a Chrysler technician today, who was obviously reluctant to diagnose over the phone. But when I described the issue, especially that I can feel a 'pulsing' through the pedal for the brief moment it makes the noise, he suggests it is ABS related - he suggested that the ABS is kicking in unnecessary. The frustrating thing however, is that the only advice he could give was to wait until the ABS warning light comes on permanently! I mentioned my theory behind the discs perhaps being warped, but he dismissed that. I guess that I would feel the brakes 'pulsing' at speed if they were warped but that is not happening - I just wondered if a 'slight' warping might only be apparent at the last second of braking.

I'm going to take it for a KwikFit free brake healthcheck on Saturday ( yes I KNOW they'll find something but you never know they might find the cause and hey, it's a free brake report and *sounds* quite thorough) but I'm now hoping that it is perhaps a dirty ABS sensor. I wondered though - just because the problem seems to be with the driver side front wheel, could it be a different corner that is causing the the front driver's side to do what it is doing? I mean, the ABS interacts with all wheels as it feels necessary right? If it felt there was a problem with the passenger side, could it make the driver's side do strange things?

Any advice would be appreciated - as stated before I don't want to go spending money on parts I don't need due to guesswork! this is so frustrating - if someone could at least turn around and give me the cost of repair, even a pricey one, I would at least know where I stand!

Many thanks


Mike

 

Mike,

I have just purchased a voyager today, and whilst driving it home the brake warning light came on and a terrible grinding noise started when at stand still, i went into a kwikfit and was told it was the exhaust! anyway will get another opinion elsewhere and let you know what the outcome is.

Regards.

Darren.

 

Hi guys

Thought I'd post this in case it is of any use to anyone - so often a forum thread stops short of a resolution.

So, the local garage who did the rear wheels and have taken a look twice now said they suspected ABS but did not have the appropriate knowledge/diagnostic equipment fo it. They insisted the pads and discs were 'passable'. The phone call with Chrysler - they said it sounded like an ABS problem, but without a warning light coming on, they said it would be better to wait until it throws an error. Kiwik-fit - aaaahh Kwik-fit. They said it was corrosion on the discs - replacing the discs and pads (£320!!!!!) would DEFINITELY resolve the issue .

So - went out in the rain today and removed the front driver's side caliper - the inside pad has worn unevenly - about 90% is even but towards the outer edge there was extra wear, which was 'mirrored' on the inside disc surface as it was a bit thicker. As I felt there was enough 'bite' I cleaned it all up using a brake cleaner and put it all back together - however - problem STILL there.

However, I have had to have the rear parking brake 'unseized' 3 out of the last 4 years to get it through the MOT -while my hands were filthy, I thought I'd take a look at how different the brakes were at the rear and I noticed that the rear passenger side ( i.e. opposite corner to the noisy one) ABS sensor was unscrewed significantly ( like a least 10mm of thread showing). I tightened it up and hey presto - brakes perfectly now.

I am assuming that the local garage that replaced the rear pads and unseized the rear drum loosened it - it seems strange that a bolt like that would unscrew so far on its own. Don't see the point in taking it up with them - it's a pity because I thought I'd found a good local garage.

Anyone know much about ABS? Does it make sense that a sensor could be loose enough to NOT show the ABS warning light, but give a dodgy enough reading, only at stopping speed, that causes the opposite corner to misbehave?

Regards


Mike

 

Just a theory, but I was under the impression (rightly or wrongly, someone can correct)a lot of cars brakes worked opposite corners so to speak.
If thats the case, rear one side and front opposite side could be connected somehow?
So if the rear wasnt right it could trigger the front opposite ABS?
No fault light because it thinks its working as it should?

 

On my 07 grand voyager. I had a grinding and then an ABS light almost instantly. I replaced the sensor and chipped/scraped the loose rusty stuff off the abs ring as I saw that the sensor had been scored. This worked a treat but I now have a similar intermittent grinding on the other side. I have not got round to cleaning the ABS ring as yet but I will soon and let you know if it works?

 

Do you have an unworn ridge on the edge of your disc...As this can make scrapping noises. Alleviated by disc renewal or grinding off the ridge.

 

Def ABS. Not sure how its setup on Voyager but either sensor or reluctor rings dirty / corroded. No warning light as it thinks its working and doing its job properly.


Warning light might come on if the sensor can't detect anything as it becomes apparent there's a problem when it thinks the wheel is constantly skidding.


This is a guess, but maybe the ABS is only activated while the brake peddle is being pressed which is why it only pumps while braking. Otherwise it would be traction control.

 

Does it have read drum or disc brakes? Either way I'd check the parking brake shoes! My 98 had a similar issues and even after replacing the front dics and pads it was still there. Turned out to be the rear drum. Just a lot of corrosion around the parking brake shoes. I cleaned it all up and its fine now.