8
votes
2answers
170 views

Squealing brakes on 14 ' Audi S4 (B8.5)

I have a 2014 Audi s4 (B8.5) that has around 35,000 km and the brakes are already squealing when I slow down by braking gradually. The sound is intense, and very annoying. It comes and goes but for ...
8
votes
1answer
187 views

BMW M52 coolant refilling

I have a BMW 328 -98, or in other words, an E36 with the M52 engine. I cannot for the life of me understand how the coolant system works on this engine, and therefore not how to properly top it up ...
7
votes
1answer
47 views

Failure to start in frigid temperatures

RE 2001 Ford Explorer It has a new battery, coil, and wires in place. The truck will not start below -7 F despite strong cranking; in these temperatures, sound of fuel pump priming is muted or absent....
8
votes
1answer
429 views

Why did manufacturers go to other than 1:1 transmission ratios?

While reading this question it came to mind: Why did manufacturers start building transmissions without a 1:1 ratio? In the older transmission you'd see the 1:1 ratio all the time, either as the ...
15
votes
4answers
2k views

Why do 5- and 6-speed transmissions typically need different gear ratios?

My 2013 Subauru WRX has a 5-speed manual, and I long for it to have a 6th gear when cruising on the highway. A friend has a 2012 Subaru STI with a 6-speed manual, and I noticed his car runs through ...
4
votes
0answers
30 views

Brake squeaks on 2013 Cruze

I was told that the brakes on the 2013 Chevy Cruze would squeak if the rotors had condensation etc. They had already resurfaced front rotors, adjusted and cleaned the rear pads and told me basically ...
3
votes
1answer
38 views

Emergency Brakes feel like they are set but are not

When driving my 2006 Pontiac Grand Prix Wide track, it feels as if the emergency brake is on even though it isn't. What is causing this?
6
votes
1answer
450 views

Mitsubishi Colt trip computer mode change?

I have a Mitsubishi Colt (2004 model, 5-door) where I've replaced the factory head unit / radio. Unfortunately this meant I lost the capability of switching the trip computer modes (instant/average ...
4
votes
1answer
47 views

Making a 1st Gen (1998) RAV4's accessory socket always live - which relay and how to access it?

Following on from Are there downsides to making an accessory socket always live, if accessories are removed when not in use?. I've find guides for the 3rd generation RAV4, which makes it sound like ...
10
votes
1answer
75 views

How do you plan an engine build?

What must be accounted for when building an engine for performance applications? How do you methodically plan a build? Take for instance a stock Small Block Chevy. Budget I understand with an ...
4
votes
0answers
66 views

What will upgrading the Camshaft do to my BBC 454?

I have been told that upgrading the Camshaft in my GM 454 will increase performance. What will this do exactly and what will the engine actually gain? 10069286 block casting 454cu '90-'91 MY, Mark ...
7
votes
0answers
43 views

Additives in Engine Oil

As engine oil is been used in the engine, it gets aged and therefore oligomers are formed. Is there a way that we can separate these oligomers without affecting the additives in the oil???
15
votes
2answers
608 views

Brake flush vs. Replacing the brake fluid

Is a brake flush the exact same thing as replacing the brake fluid? Or is there a difference?
24
votes
2answers
2k views

Why do two-stroke engine exhaust pipes look so strange?

Two stroke gasoline engine exhaust pipes are shaped strange. They expand into a wide diameter and then shrink down to a very small diameter where the exhaust gasses emerge into the environment. Why ...
3
votes
1answer
188 views

Will factory 2016 Toyota Corolla “S” 17" wheels and tires fit a 2014 Scion Xd without rubbing?

Will factory 2016 Toyota Corolla "S" 17" wheels and tires fit a 2014 Scion Xd without rubbing? Both have the same 5x100 bolt pattern. Is one wider than the other? Will they rub? Speedometer will be ...
5
votes
0answers
60 views

Dodge Stratus struggling to accelerate [closed]

I have a '97 Dodge Stratus, 4cylinder 2.0L that I purchased nearly a year and a half ago. It has approximately 140,000 miles on it. It struggles to accelerate properly at certain speeds. The sound ...
10
votes
2answers
133 views

Do straight/short pipes burn out valves?

I have heard that straight/short/custom pipes can burn out valves on an engine. However, with a 4-cylinder Ford Model A engine, I have been told this is not the case because it has such low ...
4
votes
1answer
60 views

Low beam head lights quit working

My low beam headlights quit working. I checked all of the fuses. They are good. What are my next steps?
4
votes
1answer
23 views

Metal rubbing metal padding

I had a grommet inside my Tacoma tailgate that was guiding the opening rod from the handle to one of the side locking mechanism but messed up its housing in an accident so I can't really fit a ...
4
votes
1answer
47 views

Tires uneven measurements

So for winter tires, I have 16 inch in the front and 15inch in the back, both are winter tires, is this deadly? I know I should change this but the car I'm driving is gonna go after this winter, I'm ...
13
votes
1answer
93 views

How much does a driver weigh?

I was amused when I saw one of the statistics for my VW Passat B5.5 car, which stated as follows: Kerb weight with driver - 1425kg I know this is a very weird question and I hope its not too ...
4
votes
1answer
33 views

How to find your manual?

Imagine that you haven't got a hard copy of your owners manual, technical data or operating instructions. Is there a good source from which you can get a PDF of the documentation online? I'm just ...
4
votes
0answers
70 views

Vauxhall Vectra engine (1.6 petrol) cuts out

My beloved Vectra C (2006) a previous story here developed a new "symptom": engine cuts out while driving. Since there are other (possibly connected) symptoms I am going to list them one-by-one: ...
7
votes
1answer
323 views

How can I tell if a flat car battery is charging when hooked up to a trickle charger?

I've been researching charging flat batteries and I think, if I've understood correctly: Trickle charging isn't always possible from flat, because: Some trickle chargers don't charge at all unless ...
6
votes
0answers
57 views

Th400 Transmission help

I pulled my Th400 out of my K20 Chevy and I'm in the middle of rebuilding it and I was resembling it and when I went to put the completed gear train assembly in it and the center support assembly gets ...
8
votes
1answer
363 views

Does this crack in a battery terminal post indicate that the battery should be replaced?

Mechanics at the local garage have insisted it's "no problem yet", but people here in Sierra Leone have different standards to me when it comes to car safety... This is a pic of the positive terminal ...
3
votes
1answer
39 views

Gem Harness - MAZDA 2 1.6 2011

Can someone please explain to me what is Gem Harness? Is it something to do with wiring? Searched the net but could not find any convincing answer anywhere. The primary reason I am asking is because ...
14
votes
2answers
957 views

Why do Harley Davidson engines suffer from such poor performance?

The modern Harley Davidson engine has very poor power output. Even when highly modified a 130HP engine can cost tens of thousands of US Dollars. Here are specs on one of the modern engines. Harley-...
20
votes
3answers
2k views

Is it ok to use a scissor jack instead of a floor jack?

I need to jack up my car to take out the front driver side tire and change the p/s and alternator belt. I don't own a floor jack but I do have a scissor jack. I was wondering could I just use the ...
10
votes
1answer
90 views

My subaru legacy will not boost

I drive a Subaru Legacy Turbocharged GT 2008 model with an EJ20 engine. When I press hard on the acceleration to boost the tachometer upon reaching 4-5 thousand RPM's it starts jerking and there is ...
8
votes
1answer
106 views

What is the “propane test” and how is it carried out?

This test is often mentioned in the context of figuring out what's wrong with a car engine's operation (misfires, hesitation, poor fuel economy, etc.) What is this test and what does one need to ...
10
votes
1answer
85 views

Engine starter just won't stop starting

I have a 98 Toyota privia and upon starting it the starter just keeps going. This only occurs in drive and neutral. The vehicle also starts in any gear. When I start in park the starter keeps spinning ...
7
votes
3answers
85 views

Summer windshield washer in winter

I made a stupid mistake this week, I put some summer windshield washer (Temperature > 0°C) in the my car. It's currently -14°C outside so you can guess the fluid is completely frozen. I don't have ...
7
votes
1answer
107 views

Displacement sensors for car wheel and datasheets

Probably title says it all, but I am on my design work for car suspension and cannot find a good displacement sensor for each of the wheels of the car. I tried to look up for accelerometers, which can ...
6
votes
2answers
295 views

Screeching sound at slow drive and breaking

I have 2 questions actually. But I feel there might be connection so I decided to combine this 2 queries. First: During slow start drive I hear this low screeching sound like something is loose. I'm ...
5
votes
1answer
247 views

Engine consuming oil and white smoke comes out when starting the engine while cold

my car has been consuming oil for a while now but only recently has started to smoke when it is started while the engine is cold. I thought that maybe because I am using a synthetic oil in a high ...
8
votes
3answers
307 views

What do the terms “combined port” & “direct injection” mean?

I heard these terms recently as part of the description of a new car. I know that there are intake and exhaust valves in the engine that are controlled by cams on the camshaft (if that helps you ...
3
votes
1answer
695 views

Chevy Cobalt key stuck in ignition, battery dead

I've got Chevy Cobalt 2007 with key stuck in ignition and dead battery. The battery is located in the trunk. The trunk could be opened either using the button (oh no, cannot do that because the ...
5
votes
2answers
65 views

What exactly is an intake manifold?

This is one of those phrases I have heard a lot but never bothered to ask what it meant. Until now. What exactly is an intake manifold?
7
votes
1answer
86 views

What exactly is a head gasket?

From what I have gathered, a "head gasket" is an important part of the engine on most cars, but that is about it. What is a head gasket? Where is a head gasket? Why is it necessary?
15
votes
4answers
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 ...
4
votes
1answer
42 views

Couldn't Get the Axle Out

I wanted to replace the boots on my 99 Almera MTX ( same as the Sentra ) and I got all the way to the point of pulling the axle out of the tranny but I couldn't get it out. I tried to pry it out with ...
5
votes
2answers
140 views

Exhaust Backpressure and Its Impact on LTFT Values

This is a follow-up from my initial question which can be found here : LTFT and STFT values are off and don't make sense. Car : BMW 2015 F10 M5 Modifications : Eisenmann Race Catback Exhaust, ...
4
votes
2answers
127 views

Abnormal wiper speeds and intermittent failure of wipers, 2004 Dodge Ram 1500 Quad Cab

I just purchased a used 2004 Dodge Ram 1500 5.7L Hemi with 108k miles. I "tested" the wipers before purchase and they "Worked". "Worked" mean I turned them on they wiped a few times and I turned them ...
6
votes
2answers
163 views

What is the cost/benefit for reprogramming an ECU for a non-enthusiast?

As I've been learning more about cars, I keep hearing about how manufacturers are conservative with ECU settings. For someone who isn't into racing, but would like a bit better performance out of his ...
6
votes
2answers
156 views

Are there any advantages to “manual” steering?

I recently watched a video of guys racing and drifting cars. They said they were converting the vehicle to a non-assisted steering system. I can't really figure out what advantage this would give you, ...
4
votes
0answers
135 views

Mahindra KUV 100 and Suzuki Alto OBD protocol

Can someone please tell me the OBD-II protocol of Mahindra KUV 100 (diesel) and Suzuki Alto (diesel). Also whether ELM 327 Bluetooth will work? http://www.ebay.in/itm/SuperMini-ELM-327-Bluetooth-v2-...
7
votes
1answer
144 views

What exactly is meant by “engine coolant”?

I know that engine coolant is a fluid in the engine used to dissipate heat spots and keep the engine cool in general as the moving parts generate heat. In this context, I would call the oil an "engine ...
10
votes
1answer
124 views

Computing Wheel Torque From Engine Torque

It seems possible to obtain engine torque and RPM from a truck CAN bus. I'd like to estimate tractive force at the wheels given these two values. How should I go about computing torque at the wheels? ...
3
votes
2answers
305 views

car won't start after short distances

I have a 95 Toyota Camry, she's been having some problems lately. The alternator and starter is new, and I just purchased a new battery(voltage reads fine on it). If I take it for a short drive(just ...

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