8
votes
3answers
37 views

How over-square can you go?

I'm wondering what's the limit for how over-square a motorcycle engine can be... I know all sport bikes I looked at had just under 25 m/s piston speed regardless of the stroke/rpm... So I'm ...
2
votes
1answer
36 views

2006 Mazda 5 2.3L cranks but no start

I have a vexing problem and so far two mechanics and the dealer haven't been able to solve it. The car will crank and crank and crank but will not start. On the initial crank the fuel pump will come ...
0
votes
0answers
2 views

WHAT ARE THE SPECIFIC SYMPTOMS OF BURN TRANSMISSION

I BEING TOLD THAT MY TRANSMISSION BURN IT WAS RUNING PERFECTLY AND SUDLENLY I WASNT ABLE TO SPEED MORE THAN 20MPH BUT STILL RUNS IM NOT SURE IF IS TRUTH SINCE FIRTS THEY SAID ALL I NEED TO DO WAS A ...
7
votes
4answers
10k views

How can I clean the dirt build-up in my alternator?

The alternator in my '04 Lumina SS is its Achilles' heel. It lasts a few years before it starts to overcharge the battery, after which the only practical remedy is to replace it. While I cannot be ...
3
votes
1answer
33 views

What voltage does the ECU need?

I am tracing the operation of the ECU. I want to supply it with power but what is the ECU voltage input that I should supply?
5
votes
2answers
2k views

Should we wait a few seconds before starting the engine?

My cousin told me when he enter his car, he put the key to ignition then count to 3 and start the engine. The main raison of him doing that is to give enought time to fluids (I'm not sure which one) ...
2
votes
1answer
422 views

Where can I find the reverse light fuse on a 2004 Toyota Vios

I am not familiar with the fuse box and the diagram is blurred already. There is a 4x4 set of fuses in the fuse box. I want to know which is for the reverse light.
2
votes
0answers
23 views

1999 Ford F250 XLT Super Duty – Oil in coolant

My truck has the 6.8l V10 Triton engine in it. When I got it there was a lot of oil in the cooling system but no water in the oil. It ran hot once but didn't do it again. Would it be the head gasket ...
2
votes
0answers
49 views

Heater only blowing cold air

I have a 1997 F150 with a 4.2L engine. The engine warms to a normal operating temp. Blower motor is fine. No matter where the AC/Heater control switch is turned to I only get cold air. Im thinking the ...
4
votes
2answers
20 views

2002 Honda Civic over heating fan does not comes on

I need some help. My girlfriend has a 2002 Honda Civic that keeps overheating. The fan doesn't turn on. We tested both fans and they work properly. We changed the thermostat, the cooling fan switch ...
0
votes
0answers
25 views

I have a 2006 Ford Explorer that seems to bog down

I changed the brakes line brake cylinder brakes caliber and the car still boggs down. what do you think is wrong.
3
votes
1answer
8 views

Engine noise and smoke while driving with low oil, no longer starts

I have a 1971 Ford F250 XLT. I was driving it down the highway and I realized I needed oil badly. I told my wife "we gotta get oil first thing tomorrow" and she said okay. 5 minutes later, 10 minutes ...
14
votes
5answers
4k views

What actually happens when there is way too much oil in a car engine?

I saw the answers to a question I posted recently highlighting the disadvantages of having too little oil in an engine, but that got me wondering what if the complete opposite were to occur! I know ...
2
votes
0answers
6 views

Idle doesn't hold on 2006 Toyota pick up truck after giving a jump, actually failing to give a jump.

We have a 2006 toyota pick up truck and a 2000 mustang with a dead battery. Cable's have been Properly connected. 1, I can get no current flow, no jump from the toyota, yet it starts the pick up ...
4
votes
1answer
70 views

What's the best body filler to paint a car

I want to fix some small scratches on my car can you give me some guidance on how I should proceed? These are my scratches. Rear bumper Door handle Front bumper. Here the plastic has a deep ...
2
votes
3answers
75 views

Brakes or front tie rods

I have a 2003 Nissan Altima SE 3.5v. I had my tie rods replaced with new ones and the same sound they made when they went bad is back again. I noticed that the boot had come loose and I had to ...
4
votes
3answers
2k views

High altitude adjusment for carb 4stroke. (honda xr650l)

Hi I am having some problems with my honda xr650l (1995). During acceleration I experience a sort of stuttering loss in power. Almost the same feeling as runnning out of gas in the main tank. but the ...
4
votes
0answers
5 views

2006 Jeep Grand Cherokee transmission issue

70,000 miles. Every once in a while when my wife is driving, randomly the "transmission above temp" comes on and the engine revs. She puts the truck in neutral, shuts the truck off, then back on. ...
0
votes
0answers
25 views

Jetta 2001 GLS 2.0, AC clutch won't come on

I have a problem, 2001 Jetta 2.0 GLS, installed entire new system, compressor, clutch, dryer, expansion valve, worked great for about 4 months then nothing. Clutch won't come on. Acted like it was the ...
3
votes
0answers
14 views

Why do vehicles handle better with heavy loads?

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 ...
2
votes
0answers
7 views

Rear right side vibration

1994 Dodge Grand Caravan SE 3.3 ltr. Right rear vibration at low speeds. Feels like it vibrates right as it is going to change gears for the last time. It's an automatic, has what appears to be new ...
5
votes
0answers
9 views

Why are my new tie rod ends or ball joints sticking?

A mechanic replaced the ball joints and tie rod ends on my 1994 Dodge 1500 and now the steering sticks so badly that it's dangerous to drive. What could be the cause and solution?
7
votes
2answers
71 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 ...
4
votes
0answers
14 views

Car stumbles and stalls after adding fuel additive

I have recently replaced the fuel filter and added a fuel additive of my Cayenne, both are bought from Porsche company, but the very next day I drove my car and it starts to stumble and stalls. Would ...
3
votes
1answer
33 views

Replace the brake servo at 51k?

Vehicle: Infiniti G37 coupe 2008 Diagnosis: Some times I hear whistling coming from left part and brakes gets hard Is it normal to change the brake servo at 51,500 miles? What is the possibility ...
2
votes
2answers
19 views

Higher CCA in batteries in warmer climates

If a battery with a higher CCA capacity is used in a warmer climate, would it effect the battery's performance in the longer run?
8
votes
5answers
12k views

Is the vent from the pcv valve back into the air intake really needed?

After working on my car, I didn't bother to reattached the line from the pcv valve into the air intake before testing the motor. It ran normally. This made me question whether I need to even return it ...
2
votes
0answers
13 views

Thumping noise after pad and rotor replacement

I recently had my front pads and rotor replaced on my 2012 Jeep Patriot but within one week I heard a thumping sound when breaking. The repair shop warrantied out both the rotors, and when the ...
6
votes
1answer
31 views

How to diagnose low alternator output

My car (a 1991 Citroen BX 1.4) has been giving me alternator problems since I got it, the alternator failure came on every now and then and dimmed or disappeared when I revved the engine, my first ...
3
votes
3answers
23 views

2004 Mazda 3 runs out of gas while gauge still show fuel

My car first ran out of gas at a quarter tank of gas. A few weeks later it ran out at half a tank. Then it started dieing while driving down the road and now it won't start at all. It will turn over ...
6
votes
3answers
920 views

Will an auxiliary battery hurt a vehicle's alternator?

I am going to be road tripping and living out of my SUV for a while. I need a way to power a tiny portable cooler/fridge 24/7 and would like to be able to power my cell phone, laptop, and maybe a few ...
0
votes
1answer
740 views

Proper power steering fluid for Buick Enclave?

Can I put Prestone power steering fluid into a Buick Enclave? Or does it require OEM fluid?
0
votes
1answer
186 views

Two 12 volt power sources into one device

How can I power one 12 volt outlet (feeding a XM radio transformer) from two separate 12 volt sources on a RV (ignition and coach power). Is it feasible to use 2 diodes?
0
votes
1answer
64 views

how to boost petrol engine of a small hatchback

I want to boost 1.2 litre petrol engine of my hatchback. What are possible ways for it except adding a supercharger?
3
votes
2answers
146 views

Given the following scenario, what type of engine (diesel or petrol) allows for greater acceleration and/or top speed?

I know this isn't exactly a Motor Vehicle Maintenance & Repair related question but this seems the most appropriate StackExchange community to ask it. I apologize if I am being wrong in my ...
1
vote
0answers
37 views

Need help installing Pioneer car stereo in 2006 Hyundai Sonata (power antenna)

I have a 2006 Hyundai Sonata and am switching over my brand new radio from my old car. The radio I have is a Pioneer AVH-2800BS. According to Crutchfield (which I know and trust by heart!), it says "...
6
votes
4answers
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 ...
1
vote
0answers
15 views

2001 WR426F Leaks a bit of oil out of the breather tube, is it normal?

I have a WR426F that after a bit of trailing has a small (couple drops) puddle of oil underneath it after sitting a bit. It seems to be coming from the breather tube, is that normal? I also have a ...
4
votes
4answers
22 views

Overheating in E-46, 3.23i

My BMW E-46, 3.23i temperature is always going to the red zone. My water pump is fine, the thermostat is okies, but the hose on top is hot and swollen. The lower hose, however, is cold and fine. I ...
1
vote
1answer
23 views

Intermittent power failure in hot weather 2007 Escalade

We have a 2007 Escalade with 160k miles. The car runs great normally, but when the weather gets hot, an array of warning lights will come on from time to time, the power will drop for a moment (radio ...
2
votes
1answer
19 views

Drove with extremely low oil, engine light on [duplicate]

I drive a 2011 Honda Odyssey. The last time I had my oil changed, they neglected to reset the oil change indicator (relevant because I'm assuming it would have come back on sooner when my oil level ...
3
votes
1answer
13 views

2006 Hummer H3's radio (Pioneer NEX 4200) turns back on after the car is off

I am having an issue where after my car is off for a while the radio will turn back on and stay on until the battery is drained. I have had a large Chevy dealership along with Best Buy's automotive ...
35
votes
9answers
82k views

What actually happens when there is not enough oil in a car engine?

When a car is topped up with oil, it clear to most people that you are supposed to fill it to the recommended amount as specified by the manufacturer (normally on a dip stick). What exactly are all ...
5
votes
10answers
21k views

1999 Mazda 626 Shakes when Idle

I've got a 1999 Mazda 626 that shakes really badly when idling. It gets a little better when put into neutral, but not much. I've had two people suggest possibilities: Fuel filter Vacuum hose ...
5
votes
1answer
40 views

2005 Hyundai Santa Fe Won't Start

I have an '05 Santa Fe with the 2.7L engine that won't start. I bought it this way. Was told that car died and was towed home. Found that alternator was bad. While they were replacing alternator they ...
2
votes
1answer
34 views

250 cc scooter CVT belt repair problem

I have a 2008 Qlink Legacy and the CVT belt broke the other day. I was riding when there was a pop and the bike lost power to the rear wheel. I took the CVT cover off and removed the old belt that was ...
10
votes
6answers
642 views

Is this tire puncture able to be plugged?

My wife picked up a rather large screw in her tire. It's a very clean entry, but I'm pretty sure it's too large to plug the hole. One shop even said as much, but I figured I'd get a second opinion ...
6
votes
1answer
27 views

My 2004 Audi a4 is making a gurgling noise from my engine

My 2004 Audi a4 is making a gurgling noise from my engine. I am also having to constantly put antifreeze in it. Is this related? I know I'll have to take her to be looked at but can anyone tell me ...
5
votes
1answer
17 views

Speaker setup in Subaru Impreza

I recently had an Alpine INE-W960A Navigation head unit and SPR-60C component speakers installed in my 2016 Impreza hatchback. As my budget was limited I did not replace the rear door speakers at the ...
2
votes
1answer
17 views

Activa engine noise

My neighbor and I purchased an Activa 3g at the same time. When my bike is in idle (just after immediate start) as well in running condition, it sounds little bigger/ rough noisy like dub dub... Also, ...

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