10
votes
3answers
19k views

How do I safely siphon gas from a tank?

Our 2003 Windstar was recently totaled in an accident (everybody's ok). This happened the day after we filled the tank. Before we hand over the car to the insurance, we'd like to get the fuel out of ...
10
votes
1answer
571 views

Thread on bolt - what happened?

This is a follow-up question to Seized nut & bolt - difficult to access What happened - or what did I do wrong - for this bolt to lose its thread in this way? Is it simply doing it up too ...
10
votes
1answer
5k views

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 ...
10
votes
4answers
10k views

How do I apply dielectric grease to my battery?

I recently had a new battery installed in my 2006 Subaru Forester. The shop did not use any dielectric grease, just connected the leads to the terminal and that's it. What is the preferred method of ...
10
votes
1answer
442 views

How to remove the 50 amp, 80 amp and 100 amp fuses from the positive terminal of a RAV4?

I want to check the fuses at the positive battery connection of my 1998 (first generation) Toyota RAV4. Visually, the 80a and 100a look fine, but the 50a has blue deposits and I can't tell if it's ...
10
votes
2answers
572 views

How to I stop the 'never-ending' turn signal?

I have an '07 Chevy Malibu, whose turn signal doesn't seem to disengage whenever I make a turn, unless it's more than roughly 160 degrees (a U-turn). What are some of the possible causes and are ...
10
votes
1answer
805 views

What type of Ferrari's came with wire wheels?

I always thought wire wheels was a British thing but recently I saw a very neat looking Classic Ferrari with wire wheels. Was this odd for an Italian car? Did they come stock with these or was it just ...
9
votes
1answer
117 views

What is the yellow precipitate in my outboard's carburetor?

I've got a 2008 Tohatsu 9.8 HP four stroke outboard. My low speed jet keeps getting fouled and on several occasions, I've found yellow almost crystalline "growths" for lack of a better word inside ...
9
votes
3answers
1k views

What are the causes of fluctuating intake manifold vacuum

I have a 2005 Honda CBR600 F4i which suffers from occasional hesitation at low rpm when accelerating. I also get occasional fault codes from the ECU indicating a vacuum leak. Today I connected a ...
9
votes
1answer
5k views

How important is it to use a real flare nut wrench when removing the fuel line on an old Ford tractor?

An article on overhauling the carbs on a Ford 8N tractor says to use a flare nut wrench to disconnect the fuel line. How important is it use that kind of wrench, vs. an open ended wrench?
9
votes
2answers
15k views

Huge puddle of water under car

I parked my Dodge Viper after driving for about two hours (in July, ~90°F, AC at full blast). Half an hour later I noticed a huge puddle under the engine, on the passenger side. I am pretty sure it ...
9
votes
4answers
3k views

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 ...
9
votes
2answers
240 views

What are Performance Camshafts?

I read the following question recently: What is it about performance cams that make engines produce more power when they are installed? I know there are a few components for cars that have "cam" ...
9
votes
2answers
16k views

Brakes make grinding noise during stops at low speeds

I've got a Mazda B2300 pickup that's started making a grinding sound whenever I come to a stop. Braking at a high speed doesn't make any noise, but once I get under 25-30 MPH, the grinding sound gets ...
9
votes
4answers
3k views

Is it OK to skip gears?

I'm not sure if this is on topic, but I'd like to know the answer before it comes a repair question. I have a Y2K Triumph Speed Triple - great bike. First gear comfortably takes to 90km/h. Needless ...
9
votes
3answers
1k views

How to prioritize repairs?

My car needs some work, but I don't like taking out too much debt and my savings are sort of depleted for the moment, so I need to do a little at a time. How can I prioritize the work that needs to be ...
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
82 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
2answers
412 views

Will a ground to the frame work properly if the bolt is powder-coated?

Would there be any electrical issues if a grounding point had a bolt welded and powder-coated or is it better to drill a hole, weld a nut to the frame and then powder-coated?
8
votes
2answers
9k views

Is 30k mile maintenance really required?

Is 30k mile maintenance really required? I have a subaru wrx '09 and the time has come for the check. I called the dealer after going through the manual. They quoted me 500+ for the check which ...
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
288 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
27k 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
1answer
62 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
297 views

How to fix freezing locks

Does anyone know how to prevent locks on car doors from freezing, this is usually only a problem in older cars. I'm not thinking of solutions like WD-40 that really only work for a few days and then ...
8
votes
2answers
191 views

Shutting off fans at highway speeds

On my vehicle (92 Civic) and most others I've seen, the condenser fan comes on whenever the A/C clutch is engaged. This seems like a waste of electricity (and thus fuel) when cruising at 60-75 mph, ...
8
votes
1answer
605 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
0answers
55 views

Torque convertor shudder?

I drive a 2011 GMC Sierra 2500HD ex-cab 2wheel drive with a 6.0 gas engine and a six speed 6L90 automatic transmission. I have started noticing what I believe is called "shudder" from my tranny under ...
8
votes
1answer
448 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
365 views

How to test if oil is leaking into combustion chambers?

How can I test whether oil is leaking into cylinder combustion chambers and getting burnt in case of oil level loss? As opposed to, for example, leaking through the oil pan or the timing chain cover.
8
votes
3answers
6k 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 ...
8
votes
2answers
775 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
4k 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 ...
7
votes
4answers
429 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
2answers
112 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
483 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
1answer
87 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
84 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
5answers
74k 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
320 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
3answers
377 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
1answer
781 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
5answers
40k 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
1answer
117 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
2answers
559 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
2answers
740 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
1answer
83 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
3answers
446 views

Why don't all diesel engines have throttle plates?

I learned recently that many older and some newer diesels don't have throttle plates to control airflow. I was also quite shocked to learn about a condition called diesel engine runaway. Apparently ...
7
votes
8answers
55k 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 ...

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