8
votes
2answers
798 views

What could be a likely cause of unusual “torque steer” after repairs?

I have a 2012 Dodge Avenger SXT. Recently, I had a collision with an inanimate object which damaged my front-right tire and rim and also caused some very minor body & paint damage. Immediately ...
8
votes
1answer
471 views

Mini Cooper 2003 - Changed lights to LED, insanely fast indicator lights now

Changed all the lights on my Girlfriend's Mini Cooper last weekend, since then the indicators have been going crazy (assuming due to power consumption being very low). I know you can replace the ...
8
votes
2answers
5k views

Do different brands of the same oil really make a difference?

I've found several other questions on here that answer, "what's different between synthetic oil and regular oil?" or "Can I use X oil in Y car?", or similar, but nothing that quite answers my question....
8
votes
1answer
648 views

Proper way to do maintenance on an air bag system (SRS)?

My air bag system light started coming on a while ago. Sometimes it will come on and stay on, other times it will go off after a while. This usually happens when it starts raining out. I did some ...
8
votes
1answer
5k views

Ford Focus with error code P242F (DPF failure)

I have a 2008 Ford Focus (UK) with a 1.6 TDCi engine and 60K miles. This weekend I got error code P242F stating "diesel particulate filter restriction ash accumulation" and the vehicle has gone into ...
8
votes
3answers
291 views

Switching gears without clutch

I drove manual car for a long time but never tried to switch gears without clutch. Question: given that clutch-less shift is executed properly, does it take a toll on transmission in any way? For ...
8
votes
6answers
28k views

Stubborn oil drain plug caused by hot oil?

I'm trying to change the engine oil but running into difficulties removing the oil drain plug. One of the instructions I followed to change the engine oil was to give the car a short drive prior to ...
8
votes
3answers
5k views

Does accelerating faster worsen fuel efficiency?

I've often heard that accelerating harder makes for bad fuel efficiency, but have yet to be given a sound explanation of why. Naturally this makes me question this advice. Now obviously when you ...
8
votes
1answer
65 views

What is the “Activated Carbon Cannister”?

Why do I have an "Activated Carbon Cannister" in my unleaded/petrol car? What is it's purpose? How does it work? Do I need to do anything to maintain it? I would like a general answer, but my car ...
8
votes
1answer
91 views

Pneumatic Valve Spring Operation in Formula 1

In the 2006 Formula 1 World Championship the rules allowed for pneumatic valvesprings. These engines were required to have a 90° V8 engine with 2.4 liters of displacement, 4-valve-per cylinder layout ...
8
votes
1answer
1k views

Do newer cars actually monitor the quality of oil? [duplicate]

Possible Duplicate: How does the change oil light system work and does it matter what type of oil you use for it to work properly? Starting last August, I am currently leasing a BMW 328i coupe....
8
votes
3answers
7k views

Air Conditioning Cools Intermittently

I have a 2001 Honda Civic. The A/C works pretty well - it comes on fast and blows cold. However, after 5 - 10 minutes it stops cooling and starts blowing warm air. If I turn the A/C off, after another ...
7
votes
2answers
693 views

How can I be sure that a rod knock is actually a rod knocking?

I have a 2005 Ford Escape 2.3 L engine, there is a knocking type sound as soon as the engine is started and the speed of the "knocking" follows the RPM. How can I be sure that it is in fact a rod ...
7
votes
4answers
894 views

Keeping track of removed screws?

Put simply, are there any good tricks for keeping track of removed screws and bolts when you're dealing with a lot of them? I'm officially one evening into an interior restoration job on my '88 BMW ...
7
votes
2answers
28k views

Can a starter fail and then work intermittently?

A few days ago my 2003 Honda Accord would not start. Turning the key turned on all electronics and I could hear what I believe to be something in the fuel system spinning as I attempted to start the ...
7
votes
2answers
4k views

Replacing four tires or two front tires on a front-wheel drive car

I have driven my car since ~84,000 miles. As stated below, I have replaced the front passenger tire for slow leaks twice. The other tires haven't been replaced since I started driving it. I am ...
7
votes
1answer
930 views

Why is there a hissing noise when I open my petrol cap?

When I fill up with fuel, there is often a loud hissing noise, as if you are opening a bottle of fizzy drink or something whenever I unscrew the petrol cap. It also seems like there are vapours ...
7
votes
1answer
341 views

Why no exhaust gas turbine generator in hybrid vehicles?

I found something interesting on Wikipedia today: a hybrid turbocharger. This is a device that charges a battery with an exhaust gas turbine, and at the same time operates an air compressor using the ...
7
votes
1answer
105 views

Erratic single fault code: P0420, P0440, P0446. Normal variance, or indicative of something deeper?

Working on diagnosing an evap/emission/fuel system problem on my Toyota 2003 Corolla. More on that in this question. On 3/2, I saw a mechanic use his handheld OBD to read a code P0420. On 3/12, ...
7
votes
1answer
71 views

What is a sprag unit and what does it do?

I know a sprag unit is used in the transmission. What is it and how does it work? Is it used anywhere else or is it strictly a thing used in transmissions? Are there different kinds of sprags?
7
votes
2answers
76 views

How did luxury cars provide smoother rides without active suspensions?

It seems all luxury cars have active suspensions now, so it's not a fair comparison to "non-active" cars. But I was recently driving a mid-2000 Mercedes E-class over the same roads I normally travel ...
7
votes
2answers
1k views

Do I need to go to a dealer for a simple maintenance?

I just bought a 2012 CRV. Now, it's time for an oil change. I already moved so the dealer is too far away from my house (may need half day off) and there is no other public transportation to go there. ...
7
votes
2answers
286 views

Suzuku Katana does not start after an accident

I have a Suzuki Katana GSX600F. After an accident I was in, I rode the bike home and all was fine except a little cosmetic damage. In rainstorm it tipped over and after picking it up and trying to ...
7
votes
1answer
151 views

Why should I clean bug and bird debris off my car?

I have a relatively new car with nice clean paint. I've read and been told that cleaning bugs and bird debris off of my car quickly is important because it can damage the paint. Do I really need to ...
7
votes
1answer
95 views

Locating the O2 sensors and the cat along the exhaust

I gather that the upstream O2 sensor is the one right in the center of this picture. I also gather that the catalytic converter (the "cat") is the bulbous part of the exhaust right behind this sensor. ...
7
votes
1answer
139 views

What makes a worn car shock spongy and soft?

I'm unfamiliar with car shocks. In motorcycles many rear shocks are charged with nitrogen which acts like a spring. I've seen motorcycle shocks that I've rebuilt have the correct amount of nitrogen ...
7
votes
5answers
42k views

Wobbly Steering-wheel after changing Rims/Tires?

I've just recently swapped Summer Tires/Rims for my Winter set on my own for the first time. As it should be an easy concept, I went to a "U-Wrench" type shop where you rent a stall with a lift/tools ...
7
votes
5answers
76k views

Cold start squeaking noise in engine

I just purchased a used 2010 Corolla 3 days ago. I've only now noticed that when I start the car, there is a squeaking sound coming from the engine. It lasts no more than a second. Sounds like it ...
7
votes
3answers
10k views

What are the pros and cons of installing an filter on a bike?

What are the advantages and disadvantages of installing high performance air filters (K&N,Green cotton,etc.) over original filter? What are the changes/working occur internally?
7
votes
1answer
572 views

Checking Tire Pressure when the tire is warm or cold

Witnessed a recent debate about what is the appropriate temperature to check tire pressure at. The debate centered around warm or cold, there wasn't an exact temperature given by any of the parties. ...
7
votes
1answer
98 views

Vespa PX 150 Fuel and Carbon issue

I am using Vespa PX 150.It is using Contact Point system. The issue is it is consuming fuel more than average and the plug is full of carbon after approx 50 Km.The engine not start unless I clean the ...
7
votes
2answers
1k views

What to do with damaged alignment dowels in block?

Just took the second head off the 98 Subaru Outback I'm working on and I found one of the alignment dowels was badly crimped over the gasket for about 1/3 of its circumference. I have no idea how it ...
7
votes
2answers
770 views

2004 VW Passat B5 Cigarette Lighter Broken - Common Problem

The problem I have been having with my VW Passat was that my cigarette lighter was not working in the car. It is the only one in the main part of the car (there is another one in the boot) and it ...
7
votes
4answers
437 views

What clues are there to identify real mileage?

This is a bit theoretical question, maybe viable for a wiki. Suppose you want to buy a 10yo car and among available deals you see one with suspiciously low mileage (e.g. 5'000 km). Seller assures you ...
7
votes
5answers
27k views

Can this tire sidewall damage be repaired or should I replace the tire?

I* hit a curb and got a small tear in the front passenger side tire. The tear is about 1" long and goes mostly across the surface of the tire but also a little bit, maybe 1/4", toward the inside of ...
7
votes
2answers
116 views

Driving slower at low constant rpms or driving fast to get to destination faster, which saves more gas?

As the question title says. I am a new driver and I understand that driving at higher RPMs can burn more gas faster. However getting to a destination longer would mean you were spending gas at a ...
7
votes
2answers
118 views

Battery and Alternator Pass Test - 2003 Mustang GT

I have a 2003 Ford Mustang GT, I had the battery tested and it will take a jump and start up so naturally I am thinking the alternator is bad. I take the alternator out and have it tested 3 times and ...
7
votes
2answers
666 views

What are all the different types of fluid in a car and a short summary of their use?

A fluid is defined as anything that flows, hence for our purposes a gas or a liquid. I know that there is fuel, engine oil, engine coolant and brake fluid. Also air is normally taken in through a ...
7
votes
3answers
400 views

2003 Toyota Corolla, 185k: erratic OBD codes, fuel smell, other symptoms

TL;DR: O2 sensor data, thermal measurements, and physical resonance tests all point to a failed Catalytic converter. Here's the back story. MIL illuminated with codes P0440, P0420, P0404. Around ...
7
votes
0answers
54 views

How Fast Should a Depressed Strut Piston Return?

I just changed the struts on my car, and was curious how fast a strut piston should return after being depressed. In my case the old ones didn't have any return at all almost ( after a few minutes ...
7
votes
2answers
44k views

Heater blows cold air at idle

I have 2006 VW beetle with the 2.5L engine. Once the engine has warmed to operating temperature, and I am driving it around, the heater works great. As soon as I stop at a red light, or am idling for ...
7
votes
8answers
58k views

What can cause a vehicle to run hot, but not overheat?

Anyway, I have a Grand Am 2003 V6. It only has 80k miles. My car ran great when I got it(used), but at some point it began to have minor temperature problems. It would always run a little bit hotter ...
7
votes
2answers
228 views

Solution against motorcycle gasoline theft?

During these last few weeks, somebody has been stealing gas from my motorcycle. It's a Honda Vt 125 Shadow, and since all the wires and hoses are apparent, it's pretty easy to unplug the hose and ...
7
votes
1answer
69 views

Minimum Care of Leather Interior

I have just bought a used Honda Accord with leather seating. I'm not necessarily a car enthusiast, but I would be interested in knowing the minimum I should do to keep the interior in good condition. ...
6
votes
1answer
115 views

How long would pouring a little oil into a spark plug well take to stop a car starting?

I realise this is a strange looking question! I'm in a country where many local mechanics unfortunately have a bad reputation for creating small problems while fixing other problems in order to get ...
6
votes
1answer
998 views

Clutchless Downshifts Using Throttle Blip on a Motorbike/Sequential Gearbox

This is with respect to non synchromesh, sequential transmission. Ducati along with several after market systems, implement clutchless downshifts by automatically applying a slight throttle to unload ...
6
votes
2answers
38 views

Why do vehicles handle better with heavy loads? [on hold]

Inspired by comments here: I'm not the only one who has experienced an improvement in ride and road-feel with a heavily-laden vehicle. I'm recalling a long drive I made a decade ago in my otherwise ...
6
votes
1answer
22k views

What are the differences between a wet motorcycle clutch and a dry motorcycle clutch?

What are the differences between a wet motorcycle clutch and a dry motorcycle clutch? More specifically, what are the differences in applications performance reliability maintenance/repair
6
votes
2answers
1k views

My car has multiple ODBII engine fault codes

2002 Nissan sentra se-r 2.5l Hope you can advice me on my car. My codes are: 0447, 1490, 0340, 0031, 0037 My symptoms: 1. Car stalls after driving for 5 minutes than cannot start for another 2 ...
6
votes
1answer
246 views

Weird grinding sound from the gear box

It is not like when you try to shift a manual stick without the clutch. But a lot lighter than that varying in amplitude (louder and lower) and probably is only there when the engine is cold (Because ...

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