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
5answers
39k 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
73k 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 ...
6
votes
1answer
109 views

Is it bad to mix different refrigerants?

I'm mainly wondering about different brands of refrigerants. In other words, mixing one brand of R134a with another brand, not mixing R12 and R134a (or anything like that).
6
votes
1answer
76 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
33 views

1998 lincoln continental with fluctuating idle when put in gear only (drive/reverse)

I have a 1998 Lincoln Continental. It has 124k miles on it. The history of the transmission maintenance are as follows: Fluid and filter was changed at 29k miles Fluid was flushed at 86k miles Fluid ...
6
votes
0answers
36 views

How to measure transmission fluid levels?

I understand the newer Audi A3's with either type of transmission (auto or DSG) has a really weird way to check (to normal pull the dipstick type checking) the transmission fluid. Can someone please ...
6
votes
1answer
39 views

Bleeding Brakes

Also with regard to my 2002 Bonneville brake bleeding question, I could not get the rear bleeder bolts loose and did not want to twist them off, thus I bled the rear brakes at the brake hose going ...
6
votes
3answers
136 views

Are expensive high-brightness 55W headlight bulbs worth the investment?

We've all seen them, bulbs advertised as brighter than the rest, sold under big names such as Philips or Osram. The flag is carried by Osram Night Breaker Unlimited and Philips X-treme Vision. ...
6
votes
1answer
54 views

Paintless dent removal for old tank

Is there a way to remove dents like this on the right side of the image? I've seen suction tools but the reviews are bad. Any ideas?
6
votes
1answer
133 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 ...
6
votes
1answer
88 views

What is spark plug heat range

I was watching a show and their project was adding a bolt on turbo kit. In the process they mentioned that they needed a colder spark plug. What does a hot or cold spark plug mean? What changes ...
6
votes
1answer
108 views

What is the effect of the throttle body on the power curve produced by the engine?

I heard from another member of this community that the throttle body, among other things, has the ability to change the power curve of the engine. What exactly is a throttle body? How might the ...
6
votes
1answer
97 views

Why is my car so icy in the winter?

The car is a 2004 VW Passat B5.5. The last few days have been colder than usual where I live (below 0 degrees Celsius). The outside of my car has been covered in ice in the mornings and I use a ...
6
votes
2answers
332 views

2005 Honda Accord 4cyl revving idle when warm

My 2005 Honda Accord I4 is idling fine when cold but once warm it begins "revving" on its own between 1200-2000RPM at about 0.5Hz. The vehicle initially threw a DTC P0507 ("Idle Air Control System RPM ...
6
votes
2answers
462 views

VW Passat B5 Rear Door Central Locking Issue - Door Lock Actuator Replacement

My 2004 VW Passat has an issue where the nearside rear door will not always open when the corresponding button is pressed on the car key. When the other doors are unlocked, the faulty door makes an ...
6
votes
1answer
47 views

What to Check When Replacing Struts

I'm going to replace the front struts on my 98 Mazda 626 and was wondering if there are other components which should be checked / replaced at the same time, i.e. that if the struts are shot there is ...
6
votes
4answers
342 views

Does the Toyota Prius stop if driven off without the key inside?

I have a 2006 Toyota Prius and I am worried that someone could amplify the signal of my contact-less key to unlock, start it and then drive it off. Does the Prius stall if the car is driven away and ...
6
votes
1answer
3k 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 ...
6
votes
1answer
75 views

Sticking While Rotating Crankshaft By Hand

One thing I noticed while trying measure cam lobe to lifter clearances on a 98 Mazda 626 GF 2L, was that when I rotate the crankshaft there seems to be one spot where I have to put in a lot more ...
6
votes
2answers
190 views

What CAN'T the check engine light tell you?

Usually when something goes wrong with my vehicle the check engine light comes on. I had an issue recently where the check engine light did not turn on, but the vehicle ceased functioning. I read the ...
6
votes
1answer
262 views

Excessive Vibrations in Drive when holding down the brakes

I'm working on a 98 Mazda 626 GF 2L with an automatic transmission. While I'm used to driving manuals, I would say that the amount of vibration when sitting stopped in drive with the brake on seems ...
6
votes
2answers
89 views

What vehicle does this ancient ignition coil fit?

My father-in-law gave this ford branded ignition coil to me today, and I'm curious to know what vehicle it went to, and how it was hooked up originally. Can I easily determine whether it works or not ...
6
votes
1answer
859 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
24k views

Coolant/antifreeze leaking out of engine block (See photo/video)

I'm not sure exactly what is going on with my vehicle ('98 Wrangler, 4.0L), but it's pretty obvious something is wrong. I think I might have had some minor coolant leaking after the past few times ...
6
votes
1answer
2k views

What would cause a clutch master cylinder to go bad?

I have a 1980 Honda Prelude and have only driven it a few hundred miles per year for the 10 years I've owned it. Redid the clutch when I got it, with new cylinders and everything. Last week I got in ...
6
votes
1answer
192 views

how do i know if my lead-acid battery has been resurrected?

The OEM battery in my 2008 Jetta SE 2.5L has been nearly fully discharged one month back (had insufficient surface charge after a prolonged use without the engine running, but leaving it idle for 20 ...
6
votes
2answers
236 views

Is this the correct procedure for a stator test?

Stator Test I have a 2007 DL 1000 V-Strom: I followed the following process while checking the stator: Put multimeter to VAC Tested the three phases of the stator connector plugged into a new ...
6
votes
1answer
18k 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
5k 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 ...
6
votes
2answers
373 views

Is it efficient to use the cabin heat in my car?

As much of the United States struggles through the end of the nasty cold spell, a thought came to mind: Is it generally energy efficient to run the heat in my car? Let me be a little more specific. I ...
6
votes
3answers
11k views

2000 Ford Focus, low idle, stalling at lights, white smoke from exhaust - P0171 Code - problem?

I have a couple of issues which I hope are all related. The car is a petrol Ford Focus 2000 1.8. Seems to be listed as LX, but the engine is Zetec. When stationary, the idle is quite jumpy, and the ...
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
398 views

When should I change the oil, as the tech recommends or as my oil change light indicates

I have a Toyota Corolla 2008. It has an oil change light indicator. The tech at the one hour oil change place recommends to change it every 3,000 miles but the indicator light only goes off about ...
6
votes
4answers
5k views

Can a motorcycle's brake lever be bent back into shape?

I recently had a low speed spill on my bike leaving the brake lever rather bent. Can I bend it back (roughly) straight or it is likely to just break? Given that it is cast aluminium, I suspect is will ...
6
votes
3answers
4k views

Troubleshooting 'random' clutch problems

I've got a customer who came in complaining that the clutch pedal had gone 'funny': it wasn't 'coming back up' like it used to. As he was in for service anyway, we replaced the clutch fluid, and it ...
6
votes
3answers
10k views

My car wobbles while driving

I have a Honda Civic VTI, 1997 model, automatic transmission. When I start driving my car gives a feeling that one of the front wheel is wobbling and the steering wheel receives continuous jerks. This ...
6
votes
2answers
1k views

Suzuki GSXR600 (K7) - Burned regulator/rectifier

I have managed to completely fry regulator/rectifier on my Suzuki GSXR600 (K7). I suspect that it happened when I blindly splashed into a big water pond, so some water probably got on connector. Thing ...
5
votes
2answers
60 views

Car gives knocking noise from front during braking

I have a 2002 BMW E39, the car gives a knocking noise when braking, which can be felt and heard from the front. Outside it is much louder than inside. Could this be caused by a rotten brake dust ...
5
votes
4answers
283 views

Automatic car won't start, steering wheel won't turn, key just makes car click etc - but radio works?

Someone else was in the driver seat and they were trying to drive. At one point I took out the key and when he put it back in the car wouldn't start. This was yesterday and it still won't start. The ...
5
votes
1answer
52 views

Should I get a wheel alignment?

I recently just started to notice that my car is slightly pulling to the left right after I took my winter tires off. It's not much. If i let go it will go straight for a few meters before pulling. Is ...
5
votes
0answers
31 views

What Is The Output Voltage For The Mazda 626 GF 2L 98-2002 Coil Pack?

I've seen after market "high voltage" coils that output 40kv, but what is the output voltage for the standard OEM coil pack? I want to use a spark tester with an adjustable gap to check the strength ...
5
votes
0answers
45 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 ...
5
votes
2answers
76 views

Is it necessary to replace functioning spark plugs?

I have a 2000 Mazda Protege that last had it's spark plugs replaced about 4-6 years ago (about 40k-60k miles). It's a commuter car, but it's a short commute and mild driving conditions; probably 85% ...
5
votes
1answer
58 views

2010 mini cooper , Steering wheel unstable and tends to deviate all over. Unable to diagnose the problem

my steering wheel is unstable and has tendency to deviate and shakes. It's hard to drive and very accident risky. Mechanic inspected and asked me to replace two wheel Rims. He has asked for $275 to ...
5
votes
2answers
69 views

Diagnosing P0171 2007 Toyota Corolla

First time poster trying to get into cars. So my 2007 Toyota Corolla (with around 89k miles) has a Check engine light that reads error code P0171 (System too lean Bank 1). I was looking that up and ...
5
votes
1answer
64 views

Are there any vehicle engines that don't have a mechanical oil pump?

I my answer to How to move car a small distance without tow dolly I suggested putting a manual transmission vehicle in 3rd gear while towing with a rope or strap to apply back pressure and help keep ...
5
votes
1answer
96 views

How to increase horsepower? [closed]

How can you increase horsepower on an engine through general modifications without modifying the internals of the engine? Are there benefits or tradeoffs from doing so? What kind of things could I ...
5
votes
1answer
332 views

Ford Focus engine cuts out at 3000+ RPM

I should provide a little background to this issue as I believe the two are most likely related. The car is a Ford Focus 2008 1.6 TDCi Diesel (UK) which this year has had a brand new battery and ...
5
votes
1answer
141 views

Lexus RCF - Torque Vectoring Differential, How Does it Work?

I was reading about the Lexus RCF and how it has a torque vectoring differential and how this differential has the ability to put more torque on the outer turning wheels rather than on the inside ...

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