Please HELP! Mystery Noise - ZR-1 Net Registry Forums

hottrodcrazy · 09-18-2016

Hello. I have a 1991 ZR1 and have searched and asked around everywhere that I can think of except here so far and haven't been able to either a. find any kind of solid plausible explanations or b. someone qualified and knowledgeable enough to work on a ZR1 in my area.

I purchased the car just over 2 years ago, it was a 1 owner car and to date only has just at 6,000 miles. It's been sitting almost the whole time I've owned it and clearly for most of its life. I decided to take it around the block and it's making a loud grinding noise coming from the back end, but I can't tell exactly where in the back end the noise is coming from. It sounds like brakes when they are metal on metal, but louder and it doesn't stop with the clutch or coasting. It also sounds no different in gear or out of gear.

I'm wondering if it's a wheel bearing, but if so it's just dried up from sitting for the last 20+ years since that's all it's done it's whole life basically.

If anyone can offer any help or other suggestions for a possible explanation it would be greatly appreciated. I'm located in Charlotte, NC so if anyone knows of a trustworthy qualified mechanic for a ZR1 even remotely in this area it would be greatly appreciated. I took it to the Chevrolet dealership here and was pretty much told "We can't get the parts, you need to come pick it up." yet they didn't diagnose the problem which tells me they didn't want to work on it since parts of the car were not GM made, therefore, I have no desire to even attempt taking it there again.

Thank you.

09-18-2016	#1
hottrodcrazy Join Date: Apr 2013 Location: North Carolina Posts: 22	Please HELP! Mystery Noise Hello. I have a 1991 ZR1 and have searched and asked around everywhere that I can think of except here so far and haven't been able to either a. find any kind of solid plausible explanations or b. someone qualified and knowledgeable enough to work on a ZR1 in my area. I purchased the car just over 2 years ago, it was a 1 owner car and to date only has just at 6,000 miles. It's been sitting almost the whole time I've owned it and clearly for most of its life. I decided to take it around the block and it's making a loud grinding noise coming from the back end, but I can't tell exactly where in the back end the noise is coming from. It sounds like brakes when they are metal on metal, but louder and it doesn't stop with the clutch or coasting. It also sounds no different in gear or out of gear. I'm wondering if it's a wheel bearing, but if so it's just dried up from sitting for the last 20+ years since that's all it's done it's whole life basically. If anyone can offer any help or other suggestions for a possible explanation it would be greatly appreciated. I'm located in Charlotte, NC so if anyone knows of a trustworthy qualified mechanic for a ZR1 even remotely in this area it would be greatly appreciated. I took it to the Chevrolet dealership here and was pretty much told "We can't get the parts, you need to come pick it up." yet they didn't diagnose the problem which tells me they didn't want to work on it since parts of the car were not GM made, therefore, I have no desire to even attempt taking it there again. Thank you.