Motor Vehicle Maintenance & Repair Stack Exchange
Motor Vehicle Maintenance & Repair Stack Exchange

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1500 questions
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votes
3 answers

Why are there multiple CAN buses in vehicles?

There are a number of questions on the CAN bus but none (so far as I can tell) that explain why there are several CAN buses in a vehicle. From what I understand many different nodes can be connected to a single CAN bus, so I am not sure why you…
Moeman69
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How exactly does running fuel-lean increase the temperature of ignition?

I learned in this question that running an engine fuel-lean will increase the temperature of ignition, among other things such as causing problems with the catalytic converter. I have no idea how or why. How and why exactly does running fuel lean…
Max Goodridge
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6 answers

How to fix leaky tires after 2 shops couldn't

I have an SUV with factory 16" steel wheels and P235/70R16 tires. The tires have just under 30,000 miles of gentle driving on them. Two of the tires have been leaking quite a bit (about 10 psi per week). I brought the vehicle to two different…
SomeGuy
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5 answers

What is the motorcycle equivalent of OBD-II?

I once met an OBD-II expert while traveling and asked him if motorcycles (especially the fuel-injected ones) employ a similar protocol. He said that the use of such a protocol is not as widespread but when they use it, it isn't OBD-II. I cannot…
Zaid
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Is there a benefit to belt driven motorcycles?

What are the pros and cons of belt driven motorcycles compared to chain driven bikes?
Jonathan Musso
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5 answers

How do I remove a broken drill bit from metal?

I was building a mount for my custom bobber. My 1/4" carbide drill bit broke off into 3/4" plate of steel. How do I remove it?
Jonathan Musso
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What is cold tire shearing?

I have friends that goto Track Days frequently on their motorcycles. If the first session is very cold they use their old tires and don't ride real hard because they don't want to shear their good newer track tires. After the track warms up they…
Ppoggio
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5 answers

When does it make sense to replace a camshaft?

Preamble (Rant) I was reviewing this question in which the OP presents a repair quotation that includes replacing the "intake camshaft" to fix an engine that had overheated. To me this recommendation is incredulous. I can understand the need to…
Zaid
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2 answers

Diesel Engine Runaway - What is it?

I was watching some youtube videos and diesel engine runaway videos started to pop up where apparently the diesel engine runs out of control until it destroys itself. My Question What is diesel engine runaway? How does diesel engine runaway occur?…
DucatiKiller
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4 answers

Is a tire with exposed wire safe to drive on?

This is my front passenger tire. As you can see, there is a large crack where you can see wire underneath. I ordered new tires that are supposed to arrive on Friday, however, I still need to get to & from work every day this week (approximately 10…
user12727
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'00 Honda CBR929RR - Unknown issue, help!

Sorry for the ambiguity here.. I'm not sure what the issue is with my bike. I have a bunch of symptoms and my hypothesis is that it's a cascading failure and I'm just seeing a bunch of effects down the line. So here goes: I recently bought the…
Harv
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3 answers

What is the difference between a MAP and a MAF sensor

Generally a car uses either MAP or MAF to determine the air flow index the engine is getting and that older cars used to have MAP and newer ones often use MAF and cars like the Mitsubishi EVO uses both of them. I would like to know how they operate…
Shobin P
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11 answers

Any truth to the "myth" about changing transmission fluid in older vehicles?

I have had people give me anecdotal stories (friend of a friend type thing) about changing the transmission fluid in vehicles with 150,000+ miles, especially those that haven't had regular transmission maintenance. The usual story is something…
Ogre Psalm33
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17
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5 answers

Should you replace shocks in pairs?

I have one (slowly) leaking shock. It was pointed out to me by a service place, and they also told me that they would recommend replacing both shocks (i.e. the left and right side) at the same time even though there is currently no problem with the…
Ricket
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5 answers

brake rotors- blank, slotted or drilled?

There is a lot of conflicting information whether slotted or drilled rotors perform better than blank rotors. For a street car that will do the occasional track day, which type of rotor should I get?
SimpleSimon
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