The 75 and ZT Owners Club Forums - View Single Post - Metallic grinding noise from drivers front wheel

AndyN01 · 26th September 2020, 13:08

Hi all,

Just been looking at a tourer and have come up with a bit of an issue on the front wheel. She's been sitting for about a couple of months.

Please excuse my ignorance of autos as I've been a manual guy pretty much all my life.

Going forwards at less than walking speed there's a grinding clunk noise. It's not really noticeable going backwards.

Jacking her up it's very difficult to "spin" the wheel in"N" and impossible in anything else like "P" or "D." The most I could manage is maybe 1/8th of a turn of brute force at a time. Is this normal? In a manual you can sort of spin the wheel but an auto

When I did get a slightly free point I couldn't detect any play.

The car has traction control. With the wheel up and in "D" it rotates but there's a hell of a racket. "Traction Control" comes upon the dash. Having never had a Rover with Traction Control is this just telling me that it's activated (one wheel turning, the other sat on the ground) or something else? I'm guessing that the Traction Control isn't that sophisticated and simply applies the brakes to the "spinning" wheel?

The speedo is working, registering just a few mph which feels about right for "D" on tickover.

The ABS warning light is on but not sure if this is the usual connector under the seat problem or something else. Bearing/ABS sensor/ring? But would the speedo still be OK?

Stupidly I didn't thoroughly check the state of the pads. As she was only up on the standard jack I wasn't going to get too enthusiastic! The outer one looked decent. The disc didn't look too bad although there was some rust but I've seen far worse. The pad wear sensor isn't lit. Trying to find out when the discs &/or pads were changed. I assume an auto is harder on pads?

I'm thinking/hoping that it's something like a stuck/sticking caliper which has meant that the only movement has been on the piston which, in turn has worn the inner pad away. Possibly a duff wheel bearing has been mentioned.

I don't have a virtual T4 but I do have TOAF but hadn't got it with me. Diagnostics?

Any advice, thoughts and suggestions very welcome.

Cheers.

Andy

26th September 2020, 13:08	#1
AndyN01 This is my second home Toyota RAV4 Join Date: Jun 2017 Location: Tamworth Posts: 3,076 Thanks: 2,478 Thanked 1,579 Times in 968 Posts	Metallic grinding noise from drivers front wheel Hi all, Just been looking at a tourer and have come up with a bit of an issue on the front wheel. She's been sitting for about a couple of months. Please excuse my ignorance of autos as I've been a manual guy pretty much all my life. Going forwards at less than walking speed there's a grinding clunk noise. It's not really noticeable going backwards. Jacking her up it's very difficult to "spin" the wheel in"N" and impossible in anything else like "P" or "D." The most I could manage is maybe 1/8th of a turn of brute force at a time. Is this normal? In a manual you can sort of spin the wheel but an auto When I did get a slightly free point I couldn't detect any play. The car has traction control. With the wheel up and in "D" it rotates but there's a hell of a racket. "Traction Control" comes upon the dash. Having never had a Rover with Traction Control is this just telling me that it's activated (one wheel turning, the other sat on the ground) or something else? I'm guessing that the Traction Control isn't that sophisticated and simply applies the brakes to the "spinning" wheel? The speedo is working, registering just a few mph which feels about right for "D" on tickover. The ABS warning light is on but not sure if this is the usual connector under the seat problem or something else. Bearing/ABS sensor/ring? But would the speedo still be OK? Stupidly I didn't thoroughly check the state of the pads. As she was only up on the standard jack I wasn't going to get too enthusiastic! The outer one looked decent. The disc didn't look too bad although there was some rust but I've seen far worse. The pad wear sensor isn't lit. Trying to find out when the discs &/or pads were changed. I assume an auto is harder on pads? I'm thinking/hoping that it's something like a stuck/sticking caliper which has meant that the only movement has been on the piston which, in turn has worn the inner pad away. Possibly a duff wheel bearing has been mentioned. I don't have a virtual T4 but I do have TOAF but hadn't got it with me. Diagnostics? Any advice, thoughts and suggestions very welcome. Cheers. Andy Last edited by AndyN01; 26th September 2020 at 13:10..