Motor Vehicle Maintenance and Repair Stack Exchange
Motor Vehicle Maintenance and Repair Stack Exchange

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1500 questions
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11 answers

Why did my clear coat turn out matte instead of glossy, and how can I fix it?

A while back I fixed up some rust spots on stone kicks on my hood, and ended up repainting my whole hood to cover them up after grinding/puttying/priming. I got custom matching spray paint made and used that to paint to hood, and then covered it…
Pedram
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8 answers

How do I know if my car battery is dead?

By mistake, I left the headlights on overnight for my Honda Civic 2008. 24 hours later when I tried to start it, the car would not start and nothing would come on including the internal lights and the dashboard LEDs. Later AAA guy came and jump…
vivekian2
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Are there any risks if I use impact wrench to loosen lug nuts while the tire not touching ground?

I was watching a couple of videos on how to change tires and I keep hearing that it is recommended to loosen the lug nuts while tires are touching the ground. I followed this advice when I changed the first 3 tires, but then I decided to remove the…
Suhaib
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2 answers

What's the Difference Between OBDII adapters and Toyota Mini VCI?

I've been researching Toyota diagnostic connectors, and ran across something called a Mini VCI adaptor meant for use with Toyota's TechStream software. The physical interface looks like a standard OBDII and according to this advertisement it…
Robert S. Barnes
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1 answer

Use of a stirling engine to generate electric current from exhaust heat in an automobile

I was reading an old article about the use of TEGs (thermoelectric generators) in place of alternators in cars to improve efficiency. The main problems that engineers face with this technology is the horrid efficiency of peltier elements (5-9%),…
pbount
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2 answers

Can a mechanic not share inspection results to the the seller?

I am in the process of selling my used car to a private buyer. The buyer asked to have the car inspected at a local mechanic. After picking the car up from the shop, I asked for the results of the inspection. The mechanic informed me that the…
Ivan Lesko
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3 answers

What is the benefit of Forged Internals in an engine? Pistons, etc

I've heard of these for years and not fully understood the benefits, can someone elaborate? Frequently the vehicles with forged internals have serious boost pressures, but I've also heard of naturally aspirated and / or carbureted engines that have…
voxobscuro
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3 answers

1999 Subaru Forester - bad acceleration, rough shifting

I have a 1999 Subaru Forester with an automatic transmission and a 2.5 Liter Motor. It has poor acceleration and rough shifting I started to notice 'hesitation' on take off. It just slowly appeared. Then I realized if I was trying to pass someone…
Steve Mcdaniel
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2 answers

No power but battery, alternator, and connection are good

This involves a company truck, 08 Chevy Silverado. I am not a mechanic or DIY nor do I play one on TV. The problem I am having is that every 2 or 3 months this truck will not start and completely looses power until it sits for several hours then…
user17549
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Car turns off when travelling at high speed

I usually keep a speed of 150-160 km/h (93-99mph) on the highway without any problems whatsoever. However, yesterday I decided to go up to 170 km/h (106mph) and the engine doing around 4600 rpm, when the engine suddenly turned off. The engine was…
Gendarme
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Do any internal modifications need to be completed if switching over to a non-standard fuel delivery carb?

I'd like to convert over my 350 small block to a propane carb setup but I am unsure if there needs to be any modification to the motor itself. When converting over to a propane solution do you need to make any changes to 350 crate motor to make…
Hᴇʀʙɪᴇ
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What's the best place to safely store a life hammer?

This is not really a maintenance question, but I figured this would be a good place to ask. I have a life hammer in the glove compartment, but I'm having doubts about where to store it. I figure that if I'm ever in a situation where I need the…
Bas
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1 answer

Tire Replacement - 30k mile, mechanic says its okay to only replace one?

We have a 2014 Toyota Corolla with a little under 30,000 miles. A few months ago some road debris resulted in a punctured tire (rear passenger side). We had the tire fixed, but found out that they plugged it and didn't actually patch it like we…
HelpEric
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4 answers

Does turning fan speed down affect AC compressor load

When I have my AC running, and I turn down the fan speed, does this also change the load the AC puts on the engine? Since the compressor puts load on the engine, and reduces fuel economy, I am wondering if this varies with fan speed. If it does not,…
Scorb
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2 answers

Unsticking a stuck rear electric window

I have a 2007 Mazda 3 sedan which I bought about a year ago. Everything on the car was great, until the weather started to get hotter when the windows would sometimes take a moment to "unstick" if you tried to lower them. Now, the car has…
Jane S
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