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Questions tagged [rust]

The byproduct of oxidation of a metallic material

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41 votes
9 answers
595k views

When do brake rotors really need to be replaced?

I need to replace my rear brake pads. A mechanic suggested I also replace my rotors because they are rusted around the edges. The rotors are in fact quite rusted, however, there is no rust on the ...
ESultanik's user avatar
  • 513
28 votes
2 answers
4k views

How to deal with rust

I accidentally drove my car over a curb a while back. As you probably already know, the car suffered from minor scratches and dents on the bottom side, near the rear tyre. Now, I've noticed that it's ...
happy_soil's user avatar
14 votes
3 answers
7k views

Do I need to replace my rotors?

I just bought my used 2015 nissan altima 3 months ago with 33k miles. My lack of knowledge with cars may be catching up to me as I'm now realizing just exactly how rusted my rotors are, basically ...
Alex Klepadlo's user avatar
13 votes
4 answers
5k views

Trouble installing new bolts into rusted welded nuts

I've got a 2007 Pontiac Torrent that I (mostly) installed a hitch on. The hitch mounts to 8 points. 6 points are existing welded in nuts. 4 of these welded nuts are causing me trouble. They've rusted ...
starholme's user avatar
  • 133
11 votes
4 answers
12k views

Large rust hole in spare tire area. (Completely rusted through) How to fix?

This is a beater car and I'm not worried about fixing it "properly" really. Trying to spend minimal dollars on this. My main concern is keeping rats or bugs out of the car. Basically the car ...
Karmapolice's user avatar
11 votes
2 answers
5k views

What are the benefits to waxing a modern car?

I was taught that waxing a car helped protect the finish by preventing damage from the elements - water, salt, etc.. The first vehicles I owned (a 1981 Impala and a 1978 Thunderbird) developed larges ...
Muro's user avatar
  • 213
11 votes
5 answers
48k views

Should rotors with rust on the rims but not the faces be replaced along with the pads?

I have an Audi A4 with approximately 35k miles. My dealership has recommended that I replace both the brake pads and the rotors and helpfully forwarded a picture to me of the rotors indicating the ...
Bryan's user avatar
  • 111
10 votes
3 answers
5k views

How to prevent body damage and rust from salted roadways?

I bought a used 2001 Toyota Camry this past summer. Overall it's in great shape, and I presently see no rust. Living in Wisconsin, we use salt pretty liberally to deal with snowy and icy roadways. ...
Robbie's user avatar
  • 567
10 votes
3 answers
3k views

How major are these paintwork & rust problems?

I have a 10 year old Honda Jazz (=Honda Fit in the US – I live in the UK). I'd like to keep the car going for as long as reasonably possible: hoping for another 5-10 years? It has a variety of ...
Ashley's user avatar
  • 301
10 votes
2 answers
3k views

Is there a way to check for rust on a classic car before purchase?

When someone looks at a classic car for a project how can you check for rust during the purchase process? I've heard of horror stories when someone sends a vehicle off to be sand blasted to only find ...
Hᴇʀʙɪᴇ's user avatar
10 votes
4 answers
7k views

Rusted gas tanks, how do you repair them?

If I have an extremely old vehicle that has limited parts availability for replacement, how would I fix a rusted gas tank in order to put it back in service in a vehicle? I've run into this issue a ...
DucatiKiller's user avatar
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9 votes
3 answers
19k views

Roof paint peeling badly, with rust -- what to do?

I've got a 97 Dodge Grand Caravan that's generally in pretty good shape, but the roof has started peeling badly, and a few spots have accumulated some rust. This is an old car with limited value, so ...
Jordan Magnuson's user avatar
8 votes
7 answers
2k views

Wax Coating For Bolts To Prevent Rust

After having replaced components such as tie rod ends etc the bolts and nut areas already have signs of rust starting on them, rusting further down the line. At times when these need to be undone to ...
Dave1UK's user avatar
  • 453
8 votes
1 answer
6k views

Is it normal to see a bit of rust under the hood?

While inspecting under the hood of a 2008 Suzuki Swift, I saw a bit of rust in some areas: (The last image is below/behind the battery.) I have looked under the hoods of other cars from 2008 and even ...
hb20007's user avatar
  • 735
8 votes
6 answers
41k views

Do my brakes really need to be replaced due to rust?

It was suggested to replace my brakes as soon as possible due to them being honest heavily rusted. You can see a picture below. I'm not sure whether what I was told is right because, as I see, rust is ...
ijuak's user avatar
  • 81
8 votes
2 answers
14k views

What is the procedure to fix vehicle roof paint inexpensively?

On a flat-roofed vehicle, what is the least expensive way to fix the roof when the clear coat has largely peeled off and rust has formed? There are no places where the rust is so extreme that holes ...
End Antisemitic Hate's user avatar
8 votes
2 answers
5k views

Is there something that can be applied to electrical connections to prevent rust and corrosion?

Another recent question got me thinking about this. Will a ground to the frame work properly if the bolt is powder-coated? Since I don't have any skill, tools, or ability to powder coat, whats the ...
cdunn's user avatar
  • 9,296
8 votes
1 answer
2k views

Rust From Repaired Chip in Paint Didn't Go Away

Last year, I had a big stone chip with growing rust. I thoroughly sanded it, applied primer, and painted it. It wasn't meant to look good as I just wanted to prevent the rust expansion. However, ...
Allan Xu's user avatar
  • 950
8 votes
2 answers
3k views

Winter rims have rust patches. Should I leave them or remove rust and repaint? Any recommendations for rust remover and paint?

There are a set of winter tires on there already, but I'm not worried about getting paint or rust remover on the tires -- I've ordered some new tires already (going studded this year) and will be ...
Andrew Mitchell's user avatar
7 votes
3 answers
59k views

Best way to store a car off pavement

I have a parking spot for my car, but it is weedy gravel. I've been warned that storing a car on grass is very bad because transpiration from the grass will rust out the car's underbody. Presumably ...
intuited's user avatar
  • 469
7 votes
3 answers
6k views

how to clean rust on chain (motorbike)?

slight rust on the side of the links of my bike chain. I'm runing with dry lube which is teflon based I think. The rust isn't deep. Can I go at it with a brass bristle brush, or will that damage it ...
Max's user avatar
  • 358
7 votes
1 answer
6k views

Modern cars do not rust faster in coastal locations - Myth or truth?

Someone warned me to never buy a second hand car from the coast because cars rust faster and you cannot always see which hidden parts are rusted. The expectation is that cars from the coast has a ...
Jasper Citi's user avatar
7 votes
4 answers
13k views

Prevent (or significantly reduce) brake line rust

I few years back a large chunk of my brake lines were replaced due to a failure in my brake booster. Working on my vehicle now I can see the usual cost of driving on salty winter roads, the lines are ...
VincentAlpha's user avatar
7 votes
3 answers
11k views

How can you prevent the frame and undercarriage on your car from rusting?

I drove a '97 Subaru Legacy for many years and that thing got over 280,000 miles and was still running smooth before rust finally killed it. The frame started rusting away; there was a hole straight ...
temporary_user_name's user avatar
7 votes
3 answers
4k views

Options for replacing rusted exhaust mounting bolts

The car is a 2005 Mini Cooper. The bolts that hold the exhaust mounts in place have rusted and snapped on both sides: I've taken up the floor of the boot and have located their heads on either side: ...
StuR's user avatar
  • 365
7 votes
2 answers
784 views

Oil spray against rust

How can I prepare car for winter in terms of anti-rust protection? Someone told me that I can spray car with mix of ATF and WD-40. This way oil can creep into all the small places in car's body and ...
MeIr's user avatar
  • 498
6 votes
2 answers
4k views

Turning back rust on frame welds on a FJ Cruiser

I recently purchased a 2007 FJ cruiser up here in the north where we use lots of salt. The only issue I noticed with this vehicle (and about half of the FJs I looked at) was rust developing along the ...
Ukko's user avatar
  • 885
5 votes
8 answers
14k views

How can I remove rust stains from chrome rims?

I've got horrible rust stains on my car's rims, and I'm at a loss as to how to get rid of them. A bit of googling suggests the use of steel wool, but I'm not sure how much I trust that. Any ...
user avatar
5 votes
4 answers
938 views

Removing rusted partially broken engine fasteners

This is the flange plate on one of my catalytic converters AKA exhaust manifolds where it joins the exhaust pipe. Before they broke off, the studs looked something like this, the driver head was ...
amphibient's user avatar
  • 6,663
5 votes
4 answers
3k views

Do extremely rusty disc brake rotors/pads need to be replaced?

Toyota Prius that has been outdoors and not driven for 2 years has extremely rusty disc brake rotors. Sorry, I don't have any current photos or access to the vehicle. The rotors and pads were ...
End Antisemitic Hate's user avatar
5 votes
5 answers
8k views

Improving ugly rims

The rims on my 92 Civic are really ugly (discolored/rusted) and I'm wondering how to best make them look nicer without a lot of work or replacing them, especially since I'm about to get the tires ...
R.. GitHub STOP HELPING ICE's user avatar
5 votes
1 answer
3k views

Stuck Lug Nuts on Trailer [duplicate]

I have a light-duty trailer that has sat in my driveway for too long. Both tires have rotted and I need to replace them. Unfortunately the lug nuts are rusted and don't want to come off for love or ...
andy holaday's user avatar
5 votes
3 answers
5k views

Removing badly rusted and broken bolt from suspension

I'm stuck trying to replace the rear lower control arms on my 92 Civic. One of the bolts was broken, and while I've now gotten the old arm off by taking a Dremel to the bushing and bolt, part of the ...
R.. GitHub STOP HELPING ICE's user avatar
5 votes
1 answer
2k views

What is the best way to prevent rust when cutting in your car's body?

For example, I want to cut a hole in the car's front left fender, to fit a snorkel. What is the best way to prevent rusting on the exposed metal on the edge of the cut?
alex's user avatar
  • 392
5 votes
3 answers
8k views

Do I need to replace just my one rusted rear rotor, or do I need to replace both rear rotors?

I have one rear rotor that is partially rusted on the braking surface and the rust won't go away. I tried scraping down the surface to even it out, and then the entire surface looked rusted. I had ...
Pedram's user avatar
  • 491
5 votes
2 answers
559 views

Painting Racing Stripes

I have a couple of small (1-2mm in diameter) rust spots on the roof of my truck. I'm thinking of painting flat black racing stripes over the hood (bonnet to you Brits!) and roof of the truck to cover ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
5 votes
1 answer
2k views

What options are there to minimize thread corrosion in rust-prone applications?

Any carbon steel thread that suffers from prolonged exposure to air, moisture and (sometimes) salt will suffer from rust, sometimes to the point where it creates problems. While many fixes exist to ...
Zaid's user avatar
  • 39.2k
5 votes
1 answer
1k views

Rust underneath rear of car (Toyota Mk1 MR2)

I have recently acquired an old (1989) Mk1 Toyota MR2 and took a few photos of the underside rear of the vehicle. There seems to be a fair amount of rusting on the rear axle and gear box: gear box/...
Jeb's user avatar
  • 175
4 votes
3 answers
8k views

How to remove rust from gas tank?

I have heard of a couple methods for removing rust from rattling a chain/sand/rocks with diesel fuel in the tank to doing an acid treatment. Is this something I should attempt to do, pay for a ...
Troggy's user avatar
  • 2,106
4 votes
2 answers
17k views

How to remove rust from chromed parts?

My motorcycle (Suzuki GN250) has many chromed parts, some of which are spotted with rust. I've seen several videos on youtube about ways of removing rust (e.g. https://www.youtube.com/watchv=...
ponadto's user avatar
  • 615
4 votes
3 answers
184 views

100 Scratches, easy fix?

My girlfriend parked her car (metalic blue Golf V) and took a piece of the solid pillar. So we have a bunch scratches on the left rear. It's about 100 tiny scratches, some are big, others smaler. Some ...
Basti's user avatar
  • 141
4 votes
1 answer
16k views

Best way to remove partially stripped and rusted fuel filter nut?

I missed the memo about replacing my fuel filter every 30k, so it's been more like 100k since it's been replaced. Anyway, the car is a 2001 Buick Regal, and the fuel filter nut (not the quick connect, ...
MDMoore313's user avatar
  • 1,531
4 votes
1 answer
507 views

Rust hole underneath door sill cover

Vehicle: VW sedan (unibody) I've noticed significant corrosion approx 2cm / an inch in diameter underneath the front passenger door sill plastic cover. Basically as soon as I pressed on the rust with ...
user4520's user avatar
  • 321
4 votes
2 answers
887 views

Use a torque bar when removing rusted bolts, to prevent impact driver from breaking them?

Newbie, starting to work on my own cars, and I'd like to use air tools to save wear and tear on my wrists and arm muscles, and not aggravate back pain from a car accident years ago. There are many ...
user1902689's user avatar
4 votes
2 answers
1k views

Removing rust / prepping for repainting

I have several developing rust spots on my car. What's the best way to remove the rust / prep the surface? I picked up a wire cup brush with a 1/4", but it's limited to 4,500 RPM. My tool options ...
Jeff Ferland's user avatar
4 votes
1 answer
8k views

Water leaking through visor area into interior

My car leaks when it rains. Rain drips from the visor area. I suspect an area outside and above the windshield that is showing some rust. I also suspect that my windshield was not replaced (long ago)...
Ceylon_17's user avatar
4 votes
3 answers
1k views

Would Pulling the Handbrake Help Remove Brake Rotor Rust?

The car is a Nissan Almera (N15) -99 with a 1.6 L gasoline engine. It has been standing still for over a year and some rust has developed on the brake rotors. The car has been standing under a roof ...
Bengi's user avatar
  • 41
4 votes
1 answer
3k views

Which is least likely to cause twisting off of rusted bolts? Impact gun or breaker bar

I've been working on old cars for a while and have twisted off a few bolts in inconvenient places. Just wondering, all things being equal, which is more likely to result in twisting off a rusted bolt-...
111's user avatar
  • 149
4 votes
2 answers
2k views

Minor body rust sanding and repair

I had a minor accident a little over a year ago, the damage from which I did not immediately repair so a paint scratch has corroded over time. Finally, I'm getting the time to fix it. My questions ...
amphibient's user avatar
  • 6,663
4 votes
2 answers
33k views

Failed emissions - high lambda, low HC and CO

My 2007 Daihatsu has failed the national car test on emissions. The readings at 3500rpm are: Lambda: 1.10 (normal range 0.97 - 1.03) CO: 0.02% volume (normal range below 0.20%) HC: 11ppm (normal ...
Nick's user avatar
  • 1,945