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

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1500 questions
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2 answers

Hood Unlatches but Won't Pop Up

Okay, I've got a 1998 Volvo V70 that takes two people to open the hood. When you pull the release on the inside, it unlatches but the hood won't pop open the inch or two until it reaches the safety latch. Therefor, when you release the release (?)…
Tommay
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Car shakes when braking: warped rotors or alignment?

I have an 07 Chevy Impala and I'm trying to pinpoint the shaking that occurs when braking. Only shakes when braking slowly on highway. The whole car does shake pretty badly. I just put in a new set of tires also so it can't be that. Rotors or…
Noah
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Controlling door lock/unlock via CAN bus

I'm trying to figure out how to lock and unlock the doors of a 2016 Mercedes Citan using the CAN bus via the OBD-II port. Is there some kind of OBD-II interface where I can control this with plain negative pulses? thanks
Sebastian Breit
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What are different anti-seize compounds used for?

I'm looking at buying some anti-seize compound in a little more bulk than a 1oz tube. The ones I've been looking at come with a brush. A brush as well as coming in 8oz sizes means less waste (direct application), easier to apply, and a lot less…
Pᴀᴜʟsᴛᴇʀ2
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What may happen if I do not replace my motorcycle's chain

I have a aging (y2k) motorcycle with not too many Ks on the clock. I have been told by a mechanic that I need to replace my sprockets and chain. This seems reasonable since the chain has been poorly maintained. Normally, if the sprockets were worn,…
dave
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What could be some reasons my old diesel Mercedes won't start?

The vehicle is a Mercedes-Benz T1 model 308D. The engine is an old Mercedes-Benz OM601.940 4-cylinder indirect injection 58 kW (79 hp) 2299 dm3 diesel engine from year 1992. It's not a turbodiesel! - it's a classic plain naturally-aspirated diesel…
ria
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How important it is to drain all the oil when doing an oil change?

Jettas have a fairing under the engine that makes it hard (impossible) to get to the drain plug without quite a bit of work under the car, so years ago I got an oil extractor so that I could pull the oil out through the dipstick opening. Oil was a…
dlu
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Sounds like brake disc is making contact with pad shims

I've been having trouble with a noise from the front left brakes on my 2003 Yaris/Echo/Vitz/Platz. The car takes a beating but is also well maintained. After a long drive with repeated hard braking or a few minutes out on the track, I can hear a…
DizzyFool
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Clutch "catch" point has changed, along with distance needed to engage

I was headed home the other night, accelerating up to highway speeds, when suddenly I felt the clutch pedal completely change under me. It previously started to catch at about the 1/4 way release point, and was fully engaged around the 3/4 out point…
Lynn Crumbling
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Will boring a cylinder affect its longevity thereafter?

I had to deal with a worn out cylinder recently and was suggested to bore the engine which seems perfectly normal. I am assuming the compression ratios will change so what do mechanics do to compensate for the change in cylinder dimensions? do they…
Shobin P
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How does cylinder deactivation work?

I am still grinning from picking up a 2007 Chevy Silverado 1500 LT 4x4 with the extended cab. 146,000 miles on the clock and 5.3 liter V8 engine. It has displays for everything the engine is doing in normal operation, one of which is the mode it's…
cdunn
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Why are recommended oil weights lower for many newer cars?

I've noticed that the recommended motor oil weights for cars in the last 5-10 years are often lower than earlier models. It seems like 10w-30 used to be almost ubiquitous in the 80s and early 90s, but now I'm seeing manufacturers recommend 5w-20 and…
Matt
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Consistent pull to the left when braking

My Chevrolet Astro van consistently pulls to the left when braking. Consistently means: always, the amount is proportional to the pressure applied to the pedal. It doesn't pull to the side if braking with the emergency breaks, which only applies the…
blubb
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Can cats leave scratch marks on cars?

I live in an apartment complex with some stray cats. I have multiple sets of scratch marks on the side doors of my car. I am unsure if these are from cats or from someone keying my car. Is it possible for cats to scratch car paint? Here are some of…
developer01
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What bolt extractor will remove a broken motor mount bolt on a 2004 Subaru WRX?

Things were going slowly but well on my install last night until I sheared off the passenger side motor mount bolt while putting everything back together (at about midnight - sigh). Here are the key questions on my mind this morning: Will I be…
Bob Cross
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