0
votes
1answer
9 views

How much force is needed to push a piston down?

Combustion from fuel and air is used to push a piston down. When they combustion it creates a lot of force, my question is how much force is needed to push the piston all the way down when the vehicle ...
0
votes
0answers
2 views

2003 Dodge Durango diff messed up?

Okay so I most likely have a messed up diff and I was wondering if I can just take my drive shaft off and run it on rwd only ?
4
votes
3answers
45 views

Cylinder leak down test to detect oil leakage

My 2007 Tacoma loses about 3.5 qt of oil out of 5 every about 1500 mi. I know it's low because the engine starts periodically rattling, I don't know which part but it's 100% correlated to the low oil ...
2
votes
4answers
945 views

how much water can be safely added to a battery?

My 2008 Jetta SE 2.5L has the battery as follows: ENERTEC EMC // 1J0 915 105 AD // 12V 61 Ah 330A DIN // 540A EN/SAE. It would appear that the battery can no longer hold the starting charge after an ...
1
vote
1answer
10 views

Lexus HS 250h car; a/c noise from inside the car

I am getting these kind of noise https://youtu.be/QhmK7oDX1tE Any idea what's wrong? Car details Year : 2010 Model : Lexus hs250h Its happening when I switch AC/Fan on and it last for 30 sec and ...
3
votes
2answers
7k views

how fast does the alternator charge the battery?

It would appear that the common word of wisdom is that car alternators provide 50A of output. I actually looked at the supposed specs for my 2008 Jetta 2.5L on the internet -- a compact car -- and it ...
3
votes
3answers
14 views

Engine oil sludge

My question is, have ever heard of it making engine oil gel, or turn sludgy if you can call that a word? I haven't, but 05 Chevy Equinox I'm servicing had this happen. Not sure if it started before or ...
12
votes
3answers
3k views

Why is car A/C typically less reliable than fridges/freezers?

I just had the A/C in my car die on me again; air coming through the vents with the A/C is just as warm with it turned on as off. However, my fridge/freezer is something I've had for over 5 years and ...
7
votes
6answers
38k views

At what point do you need to replace the calipers?

I bought my car in February 2013 with 49K miles. It now has 61K miles on it and my brakes are starting to squeak very gently, until I apply more pressure on the brake pedal. When I bought the car, I ...
2
votes
0answers
29 views

Hydraulic steering goes left but not right

I am working on a project with a group of friends. We have built a vehicle using a hydraulic orbital steering valve from an old ditch witch. The vehicle goes left but not right. There are 5 ports on ...
3
votes
1answer
22 views

Can I transfer a 2007 Kia Sportage home-link into a 2016 Kia sportage

Can I transfer a 2007 factory installed Home-LINK mirror into a 2016 Kia Sportage?
4
votes
1answer
149 views
+50

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 ...
4
votes
5answers
4k views

Does switching to neutral on an automatic transmission improve braking for immediate stopping?

I've been told that when needing to brake quickly, throwing the gear into neutral on an automatic transmission actually allows for better/quicker braking. I understand how things work pretty well but ...
4
votes
1answer
43 views

Motorcycle dumping coolant from tailpipe

I'm in the process of getting my 1982 Honda Magna back in running condition. I've cleaned out the carb and put in a new battery. It now runs, but dumps a TON of coolant out the tailpipe. Almost a ...
7
votes
2answers
306 views

Does engine braking an automatic wear out the transmission?

My question is a variation on these two: Engine braking with an automatic transmission What are the “1” and “2” or “L” gears used for on an automatic? I recently bought an automatic transmission ...
4
votes
1answer
158 views

Key won't turn to off position on 2010 Chevy Aveo

I have a 2010 Chevy Aveo and the key will not turn to the off position. It starts and drives but when you try to turn it off it will not turn past the accessory position to the off position. When the ...
3
votes
3answers
16k views

Fixing a water-damaged remote key

I have a Toyota Camry 2011 and two remote keys. One of the keys was soaked with water two years ago. Of course, it is not working. I went to a dealer and they failed to recover it. Is there something ...
1
vote
1answer
12 views

Tires squealing when braking

When I apply the brakes at high speeds, not lightly but not enough for them to lock up, my tires squeal. I believe the sound is coming from the tires and not the brakes at all. One thing to note is ...
3
votes
1answer
45 views

Triumph America 2002 running lean on one cylinder

I have a problem with my America 800 it's running lean on the right cylinder and when I adjust the mixture screw it makes no difference. The mixture was checked using an afr meter. The rubbers ...
7
votes
1answer
52 views

Meaning of relay acronyms: H-LP, E/G, DIM etc

I'm trying to get to know my fuse and relay boxes better. They're labelled, but the labels are mostly acronyms and shorthand, and googling any particular acronym gives a lot of mentions of common ...
1
vote
0answers
4 views

Tmec 50QT-2 scooter wont start

In need help before I have to be sent to a mental hospital lol. I have a Tmech 50QT-2 scooter (Chinese type). The scooter revs when using the electronic start button and or the kick start but it ...
13
votes
1answer
214 views

Engine noise / rattle when clutch is fully pressed [BMW 320d e46, manual]

I have a strange noise, like a rattling/stomping sound at idle, when pressing the clutch pedal. The clutch and the flywheel (DMF), were both changed with new parts. Except for that sound, the car ...
10
votes
5answers
1k views

Is it okay to splice a backup camera into the reverse lights?

I saw another thread that was similar, but it didn't a definitive or clear answer on the matter. I'll be brief. I want to install a Nexus 7 (2012) tablet in the dash of my car. I want it to be able ...
12
votes
0answers
55 views

Revving and rattling sometimes when braking

My Tacoma has been making a strange revving and rattling sound when the truck is in motion and the brake or the clutch is pressed and the gas pedal is released. I couldn't reproduce the effect when ...
2
votes
1answer
18 views

Interface tracking device with OBD II (or alternative sources of data)

I have recently been working on writing software for some very small tracking devices. I decided to take on an electronics engineer and start building some boards myself using a GPS/GPRS module. I ...
4
votes
1answer
246 views

97 Jeep Cherokee check gauges light came on and then my battery gauge dropped down to 9 didn't lose any power?

I'm so confused I had just left my house and got 3 blocks away and my check gauges light came on, then my battery gauge dropped down to 9v. My Jeep didn't lose power, and the radio, heat, lights and ...
6
votes
2answers
44k views

What is the purpose of a drive-shaft?

what is a drive-shaft and why we need it in a car? I do get the point of having crankshaft (using Wikipedia) but still confuse with drive-shaft
4
votes
1answer
53 views

Hyundai Accent Diesel 2002 alternator works on day but not when headlights are on

I have purchased Hyundai Accent diesel 2002 four cylinder from my savings .. its start every morning but not at night when the car's headlights are on. I couldn't start it after one or two attempt . ...
7
votes
2answers
268 views

Can't start a Kawasaki GPX 750

I'm in the process of getting my 1986 Kawasaki GPX 750 back in running condition. The bike was sitting in the garage for two years. In this period it wasn't started even once. Two years ago the engine ...
9
votes
2answers
95 views
+50

Horsepower at wheels calculation

I have used Torque Pro App for sometime in my Hyundai i10 Era (2011 model) and it gives me Horsepower at wheels. But the values seems to be much less. To find out the problem, I logged the car OBD ...
4
votes
1answer
30 views

Inside temperature reading 13 degrees lower than actual outside temperature - what could be the problem?

I have a 2006 Nissan Sentra. Its inside temp is reading 58 degrees when it is actually 71 degrees outside. What could be the problem? Also, I just changed the thermostat today.
2
votes
1answer
15 views

Does a full fuel tank speed up the CEL turning off after changing the fuel cap?

Consider this scenario: The CEL (check-engine light) is on. The fuel cap is subsequently replaced. The fuel tank is half full. I am wondering: Is it advantageous to fill the tank to the top to ...
13
votes
6answers
59k views

Clicking type sound when braking at low speeds

Most of the time when I brake at low speeds I hear a clicking type sound, that is fairly faint. I do NOT hear squeaking, grinding or any high pitched noises that might indicate my brake pads are ...
4
votes
3answers
251 views

Do I have to reprogram the ABS module to fix the ABS light on 528i BMW?

I'm not sure if this is true but I've heard that in order to fix my ABS light, they have to remove the module and send it out to reprogram. Is this true?
2
votes
2answers
27 views

Overheating and more

Hi I have a 2000 Buick park ave v6 3800 series and the problem started as a small leak in the radiator from the little drain plug so I righted that and the leak moved to the whole opposite side of the ...
7
votes
4answers
111 views

Do no-name tires go through thorough testing?

Tire (tyre) brands come in three categories: Major brands that advertise extensively Relatively unknown brands that are actually made by the major brands Relatively unknown brands that are ...
8
votes
4answers
2k views

What are the “1” and “2” or “L” gears used for on an automatic?

In a car with an automatic transmission, we are normally greeted by the acronym PRNDL, or in some cases (older cars) PRND21. I know that the L, 1, or 2 will cause the transmission to stay in a ...
4
votes
1answer
23 views

starting issuse 2007 F350 6.0 diesel

When its cold out intermittently when starting the vehicle and then shutting it off the vehicle will start to crank with it in the off position. With the vehicle in the off position the starter should ...
7
votes
3answers
86 views

Excessively over filled motor oil. Ran for a few seconds until smoke came out. Now my car won't start

So last night me and a friend changed the oil on my 2005 Chevy aveo. The only problem was that what we were draining was the transmission fluid and long story short we ended up adding about 6 litres ...
5
votes
2answers
45 views

How can I determine the turning profile of an articulated vehicle?

I'm working on a project that requires me to design an overload control centre where overloaded trucks are allowed to redistribute or shed some of it's cargo in order to continue to travel on the ...
8
votes
4answers
128 views

Dent removal from passenger door

I have a huge dent in my front passenger door from where I was attacked by an elk. This dent has been in the door for probably 12 months as I previously did not care that it was there. Now I would ...
4
votes
0answers
35 views

Car bounces back and forth after shifting

I've been having this issue for a while on my 1999 Volvo V40 T4 manual. Whenever I shift and release the clutch quickly, the car often does this nasty bounce: the car hesitates a bit for a split ...
4
votes
2answers
43 views

I changed the oil and might have put too much in. What do I do?

I just bought a Subaru Baja 2005 and decided I needed to change the oil. I got the right oil and filter and got my mom and younger brother to help me. We drained the oil and tried to take off the ...
11
votes
4answers
106 views

What would happen if you shifted into reverse while you are going forward?

First, I am talking about manual cars and I know this is considered impossible because of the synchronized gears, but lets suppose that you can manage to shift gears (For example you could shift into ...
2
votes
1answer
23 views

Gear Shifting from Neutral to Drive

Kindly, I am facing a problem in my gear, when I am shifting the Gear from Neutral to Drive. When I am shifting from N to D ( meaning the Status now " Drive ") the car Screen show that the Gear is ...
3
votes
2answers
49 views

Shifting on a motorbike by preloading

I have a few different questions that popped into my head after reading about preloading the shifter in motorbikes, here's one of three: Shifting between 1st and 2nd on a motorbike - will the bike ...
5
votes
1answer
36 views

Have any systems been created for electric cars to intentionally reduce torque in icy conditions?

So, I daydream quite a bit about owning a Tesla Roadster, then it hit me. What happens when it's icy and I need to go get groceries? Well, in my Lotus Elise, I could easily just pop the thing in ...
8
votes
2answers
154 views

Minor boost leak and shrill tone at peak boost: hose clamp, gasket or blow off valve?

Vehicle in question: 2004 Subaru WRX wagon. This weekend, I replaced the intercooler hose (y-shaped upset the intercooler), the throttle body hose and the blowoff valve hose (routes the over boost ...
3
votes
1answer
32 views

Will I damage my car if I don't fix evaporator core leak?

Pretty sure my evaporator core has a leak, super expensive to fix. Can I just charge it 3 times a year or so? Is this going to damage my car?
5
votes
1answer
43 views

Transmission disengages itself

Seems like my car disengage itself from drive to neutral while in motion. I drive a 2004 Honda Accord. When in drive and in motion, the car starts slowing down even with my foot on accelerator. It ...

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