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Calling All OT Mechanics-
Posted on 5/24/24 at 9:52 am
Posted on 5/24/24 at 9:52 am
2004 Mercury Grand Marquis (yes I'm old, get off my lawn damn it), 110K miles, (obviously rear wheel drive). I'm hearing a hum that sounds like it's coming from the right rear. Not unlike an airplane?? It starts about 20 mph and gets louder with speed and acceleration all the way to 50mph and above. I'm leaning towards a wheel bearing problem. What say you old (and young) wise ones. Assuming this is the culprit, worst case scenario if I keep driving it without repair? merci beaucoup!
25
Posted on 5/24/24 at 9:54 am to Shanegolang
Posted on 5/24/24 at 9:55 am to Shanegolang
I recently had a similar issue with my kid's car and it was because one of the weights fell off the rim causing it to become unbalanced.
Posted on 5/24/24 at 10:00 am to Shanegolang
I had the same problem and when I hooked up my velocity disgronificator it told me to sell the car fast.
I hope that helps.
I hope that helps.
Posted on 5/24/24 at 10:01 am to Shanegolang
Start with balancing tires, then brake pads rotors.
Posted on 5/24/24 at 10:01 am to Shanegolang
Jack the vehicle up to where the suspected wheel is off the ground. Then grab the tire at the top and bottom at the same time and attempt to rock it back and forth.
If it moves at in and out at all, the bearing is bad.
Worst case sceaniro if the bearing is bad and you keep driving on it:
1. Bearing gives out, which leads to hub failure when can lead to the wheel coming off or locking up completely. It could also cause a fire if the hub gets too hot. For safety reasons it needs to changed if the bearing is bad.
If it moves at in and out at all, the bearing is bad.
Worst case sceaniro if the bearing is bad and you keep driving on it:
1. Bearing gives out, which leads to hub failure when can lead to the wheel coming off or locking up completely. It could also cause a fire if the hub gets too hot. For safety reasons it needs to changed if the bearing is bad.
This post was edited on 5/24/24 at 10:04 am
Posted on 5/24/24 at 10:05 am to Shanegolang
Bearing is a strong possibility. Another possibility is a bad brake caliper. I'd check it out immediately. You don't want either failing while you're driving.
Trust me.
Trust me.
Posted on 5/24/24 at 10:05 am to Shanegolang
The bearings or the tire weight are a good place to start. You could also check for a bubble in the tire. They start with a noise then wobble as they get worse.
Posted on 5/24/24 at 10:16 am to Shanegolang
Posted on 5/24/24 at 10:22 am to Shanegolang
Could be your brake pad indicator letting you know your brake pads need replacing
Posted on 5/24/24 at 10:35 am to Shanegolang
Close inspection of the tire would be the first place I check.
If it is an axle bearing, the first tell tell sign is gear oil leakage at the inside of the wheel.
If it is an axle bearing, the first tell tell sign is gear oil leakage at the inside of the wheel.
Posted on 5/24/24 at 10:36 am to Shanegolang
Maybe check the parking brake also. Sometimes they get locked up.
Posted on 5/24/24 at 10:44 am to Shanegolang
wheel bearings. just drive to failure.
Posted on 5/24/24 at 10:47 am to BayouBengal51
quote:
Jack the vehicle up to where the suspected wheel is off the ground. Then grab the tire at the top and bottom at the same time and attempt to rock it back and forth.
This is my go-to if nothing else is obvious with a close inspection for other issues.
This is probably not the issue but a friend of mine pranked a co-worker one day by popping off his hubcap and putting a couple small rocks in it and popping it back on.
The guy was driving home and kept hearing a rattling noise coming from the rear of his car, got worried he had a potentially bad issue and had his car towed the rest of the way to his house, costing him over $100. He found the rocks and knew who did it. The other guy reimbursed him for the towing fee, so his prank backfired.
Posted on 5/24/24 at 11:01 am to Shanegolang
I had a hum and a little vibration at 35 - 40 mph in my truck. It was a drive shaft bearing.
Posted on 5/24/24 at 11:09 am to Shanegolang
Sounds like low rear right blinker fluid. Best to refill it with prop wash. I think you need a metric crescent wrench on that model car. I take an exhaust sample while you're at it and replace the grid squares.
Posted on 5/24/24 at 11:51 am to Shanegolang
It’s a wheel bearing, common for that around the 100k mileage
Posted on 5/24/24 at 12:02 pm to greenbean
quote:
Sounds like low rear right blinker fluid. Best to refill it with prop wash. I think you need a metric crescent wrench on that model car. I take an exhaust sample while you're at it and replace the grid squares.
Tried all of these but I'm still hearing the hum. Thanks for the advice.
This guy had the answer!
Bearing Problem
This post was edited on 5/24/24 at 12:09 pm
Posted on 5/24/24 at 12:05 pm to Shanegolang
take it for a 15+min drive. feel each hub and see if one is noticablly warmer than the others.
Fantastic car. Back in the day when Ford didn't make garbage.
quote:
2004 Mercury Grand Marquis
Fantastic car. Back in the day when Ford didn't make garbage.
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