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

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1500 questions
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2 answers

Is it normal to connect the positive to a fuse and the negative to the chassis

I am try to install an after market usb breakout box on my vehicle. It has a red wire and a black wire coming out of the back. The instructions say to connect the red wire directly to a fuse in the fuse box and the black wire to the chassis. In…
Aaargh Zombies
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Newbie with a grease gun - lacking a bleeder valve

I recently acquired both a small tractor and also a car that I want to take good care of. Having grown up a city-dweller I did not know about grease guns until I read the service procedure for my tractor, and I have zero experience with this simple…
pipe
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What happened to my car?

I have a 2010 Corsa. It has been fine for over 250,000 miles (400,000 km) and just passed MOT last month. Driving home last night, it died on me. It was pulled out of a junction, got into 3rd when the revs went high for 5 secs before going back to…
Georgia Smith
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What is this panel on the front of BMWs for?

I know the panels circled in yellow are headlight washers and exist on many cars now. However, on several BMWs I have noticed an extra panel, circled in red. It is not symmetric and I have only noticed it to be located more on the passenger side. …
jzd
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Timing belt change on a car about to be scrapped

I currently drive a Renault Clio III 1.5 dCi that just reached 200.000KM. At my last checkup, the mechanic told me a timing belt change was necessary, along with a few other minor fixes. I just bought a new car that will arrive in late August, so…
gorokizu
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What are the tell tale signs of a catalytic converter that might be going bad?

I've owned two vehicles whose catalytic converters were recalled due two a couple of reasons: one being the quality of the CC and the other being a reduction in power due to a material building up and reducing airflow. The car I own now (2007…
Cᴏʀʏ
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Accidentally put CVT into park

So I was driving and I accidentally put the transmission into park, I was doing maybe 4 or 5 km/h I didn't hear anything unusual other than the tires squealing, drove fine after that but I was wondering if I should take it to a mechanic?
Tur_841
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What is the meaning of BHP and torque in bikes or cars?

BHP = Brake horse power. It says that it is brake horse power but it is generally relates with high pick up (your bikes reaches top speed in lesser time). So what does this actually mean?. Torque = vertical distance x FsinΘ , how is that related to…
paul
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3 answers

Wrong octane fuel

I have a 2014 Fiat Punto and have been using 92 octane gas. I have never read the manual, but am now told I should use 95. Should I use what is in the tank before filling with 95 or is it OK to mix them.
Judith hb
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6 answers

Car imitates dead battery but comes back to life ~30 minutes later and lets me start it

The car: 2006 Subaru Legacy Touring Wagon 2.0 GT (Japanese model) - recently purchased; warranty does not cover this The situation: Something happens with the 12v supply and once the car is stopped (switched off) dash lights won't come on, central…
ProgrammingLlama
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6 answers

What happens if unsuitable oil is used in a vehicle engine?

I recently heard an urban legend-like story about a guy in a developing country who decided engine oil was too expensive and so used some vegetable oil instead. The story says the car ran for some time and then it's engine got broken and required…
sharptooth
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Why tighten down in a criss-cross pattern?

I believe almost everyone working on a car in any capacity has heard this, many things should be tightened down in a criss-cross pattern. Why? What is the rationale behind it? I can imagine several plausible explanations myself, but I'd like to know…
AlphaCentauri
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4 answers

Is it possible for a vehicle to be manufactured without a catalytic converter?

Can a new vehicle from a plant be produced without a catalytic converter? Is it possible? I am a lecturer at a college in Zimbabwe, and my students recently asked this question, so I am researching.
Charly K Mwamber
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Is high octane fuel a requirement for high-compression engines?

I own and use a 2005 Chrysler Crossfire SRT-6 as my daily commuter vehicle. I'm not interested in trying to eek out a few extra miles on a tank, I want to keep the vehicle and its engine running as long as possible. I do all the proper maintenance…
user376
12
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2 answers

Is there a measurable benefit to replacing spark plug wires?

My 92 Civic has very old spark plug wires, probably original, but their resistance is in-spec (under 20k ohms), they have no external damage, and the vehicle has no misfire or other symptoms associated with bad wires, aside from having worse gas…
R.. GitHub STOP HELPING ICE
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