General internal combustion engine questions.

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1
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1answer
300 views

Change in engine oil color just after oil change

I have changed my new Swift VDI car engine oil at 19344kms. Just after the oil change at 19344reading means car is not run even 100 feets i checked the oil and i found it very black in color and it ...
8
votes
4answers
7k views

Why does a Turbocharger only produce boost when the engine is under load

As per the Title. Why does a turbocharged car only produce significant boost whilst the engine is under load. Is is something to do with how much exhaust is being produced or is there some kind of ...
1
vote
1answer
89 views

Is a 1994 Jeep Wrangler engine reliable

Its gone 150000 KM (93,205 miles). Would its engine be reliable to last another couple of years? Should I be on the lookout for any noises the engine makes that signal trouble? Thanks
8
votes
5answers
2k views

Car crash: when does a car catch fire?

Which kind of crash does it need for a car to catch fire? I'm asking because I was discussing about an accident where a car crashed into a full-grown brown bear. Is it realistic under normal ...
2
votes
1answer
76 views

CVT on 6 cylinder cars

The 2013 Honda Accord has both 4 cylinder and 6 cylinder cars, however, only the 4 cylinder cars have a continuously variable transmission (CVT). I was wondering... is there any particular reason for ...
3
votes
1answer
243 views

Low compression and will not ignite after broken camshaft pin and replaced head and gasket

My 95 Geo Metro Lsi 1.0L had a blown head gasket. I replaced the gasket and drove the car for approximately 120 miles before it started spitting and sputtering. Then it died just before I got home. I ...
-3
votes
3answers
665 views

What engine is more durable? 3 or 4 cylinder ? [closed]

I would like to know what engine would last longer and with less problems? A 3 or a 4 cylinder engine? Thanks. Alik.
3
votes
2answers
450 views

2013 Yamaha XT250 engine clicking/ticking noise

I just bought my xt250 as my first bike after getting my permit about a month ago. It's 2013. At 100 miles I dropped the oil and changed the filter. As a small woman I've also installed lower links to ...
3
votes
2answers
3k views

2006 Chevy Cobalt front end (strut mount?) noise

I have a 2006 Chevy Cobalt and since I bought the thing, the front suspension makes this horrible clunking noise every time I go over a bump. I don't know how to describe the noise other than it only ...
13
votes
4answers
7k views

Is Start & Stop technology good or bad for my car? (Alfa MiTO)

I was recently in the lucky position to obtain an (almost brand new) Alfa Romeo MiTo, Progression. Like many new cars coming out these days, it has "Start & Stop" technology that turns the engine ...
2
votes
2answers
187 views

Is incessantly revving an engine necessary for tuning?

I have a neighbor who revs his engine loudly over and over again, for anywhere from 15 or 20 minutes up to several hours at a time, several days a week, and has been doing this for over a year. It ...
5
votes
1answer
194 views

Supercharger Components That Can Fail

I have a 1998 Pontiac Grand Prix GTP, with the supercharged 3800. I recently made a trip from Meridian, MS to Cincinnati, OH, and back again (roughly 600 miles one way). With the car being relatively ...
6
votes
1answer
739 views

What is this loud semi-regular clicking on a 2001 Honda CR-V?

Due to the nature of my problem I've had little success on Google. I appreciate any help. I have a 2001 Honda CR-V EX with 130000 miles on it and I'm the original owner. The week prior to my ...
11
votes
1answer
446 views

What is happening when a two-stroke engine is said to be “four-stroking”?

Many years ago, I was involved in a hobby of building and flying model aircraft. The aircraft used alcohol-fueled 2-stroke engines with glow plug ignitions. When these engines ran rich (and always at ...
1
vote
1answer
319 views

black smoke from maruti 800 1996 model

I have purchased a second hand maruti 800(1996 model) car and is in good running condition, but black smoke is coming out from the engine. I took to mechanic and he said that, the black smoke coming ...
3
votes
2answers
1k views

Host of small performance problems in 2006 Hyundai Elantra

I bought a used 2006 Hyundai Elantra (Automatic) back in early 2011. At the time, I was needed to have a car quick, and it seemed like a good deal, but the longer that I've owned it, the more problems ...
4
votes
2answers
177 views

Dealership Installed “Oversized” Oil Drain Plug As Solution

In this question, we discuss stripped oil pan threads. I learned it is a result of user error - over tightening and cross threading, by the dealership I consistently go to. Many people have come ...
1
vote
1answer
509 views

Buzzing Sound coming from Nissan Altima engine after accelerating

I have a really sharp buzzing sound coming from my 2006 Nissan Altima engine. The sound starts and stays around as soon as press the accelerator. Doesn't go away until I turn the car off. I know ...
2
votes
1answer
128 views

What are the functions of Finger Follower, Lash Caps & Lash Disks and Seat Inserts?

I have googled all teams, but do not understand well from the result Finger Followers? (I see many website talk about rocker arms, but what is finger follower? Are they for different types of engine ...
1
vote
2answers
227 views

Can an Idle Control Valve cause backfiring and can it be cleaned

I am pulling codes for my engine indicating a faulty idle control valve. The vehicle at idle seems to hunt jumping between about 800rpm and 1100rpm. It happens maybe every 20 seconds. If I accelerate ...
0
votes
0answers
29 views

Is there any disadvantage of shifting to Neutral at high speed? [duplicate]

I would like to confirm whether shifting the vehicle to Neutral while at high speed in order to stop the vehicle is bad or not in terms of fuel efficiency. I had a word with some of my collegues and ...
5
votes
2answers
1k views

Oil pan threads stripped?

EDIT Helpful links on how threads got stripped and by who: http://tl.acurazine.com/forums/showthread.php?t=878261 Seems to be a common problem with some shops, where they don't take good care. ...
5
votes
2answers
71 views

Can a full teardown of my 318 TDS (1996 1.7 Gasoil) E36 engine have bad side effects?

I would like to get more acquainted with the engine of my car, learn mechanics, and also just clean the engine of accumulated dirt and grime. As such, I am considering tearing down the engine. For ...
0
votes
2answers
70 views

Purchasing a Used Car - Advice [closed]

I'm looking into purchasing my first vehicle. I have a friend who's really into buying/selling VW's and he has a Jetta from the early 2000's with 240 000 km on it that he insists is a great deal and ...
3
votes
2answers
1k views

Ford Taurus common oil leak area?

On my last oil change, the technician noted some oil around top and side of the engine block and said there is a small leak. The only way to find where it is coming from is doing the whole dye test, ...
3
votes
1answer
497 views

Maxima (2002) MAF Sensor Failures

I have a 2002 Nissan Maxima that I've owned since 2003. I'm now on my sixth Mass Air Flow (MAF) sensor. What seems to wipe them out is hard acceleration (3/4 throttle - not so extreme as to induce ...
3
votes
1answer
94 views

Check engine light between 1300-1800 RPM

I have a 1995 gmc Sierra hd with the 6.5L turbo Diesel engine in it. I just recently bought it and when ever I hold around 1300-1800 rpm the check engine light comes on, when I take my foot off the ...
2
votes
1answer
156 views

Where to pour oil into the engine (BMW E34)?

As the title says. Also, how to open the access point (if it non trivial). (It's an M50B25TU engine)
13
votes
2answers
4k views

Why doesn't the engine stall out when you come to a stop with an automatic transmission?

When you come to a stop with a manual transmission you have to push the clutch in or take it out of gear to keep the engine from stalling out. What keeps the engine from stalling in an automatic ...
0
votes
1answer
711 views

Top Speed varies even when using the same bike

I own a Hero Honda CBZXtreme bike. The top speed that I have reached is 122Km/Hr. But I am not able to reach this speed always. Sometimes the speed does not even cross 105 Km/Hr while travelling on ...
2
votes
2answers
122 views

SB350 cutout at freeway speed, revs fine in neutral

Was hoping someone could help me out with an issue I'm having since I'm running of ideas... In case it helps, its a 71 Nova with a small block 350. Carbuerated and HEI, without any computer chips or ...
5
votes
1answer
110 views

Would a snapped valve necessarily seize the engine?

Long story short, after a brief near-redline excursion (a long tunnel and open windows may have been involved), and about 10 minutes of gradually loudening TAK-TAK-TAK-TAK that couldn't be drowned out ...
6
votes
2answers
5k views

Engine Size and Fuel Consumption

I have this weird misconception that the engine size is related to the amount of fuel being burned in one cycle(4-stroke engine). I know this is stupid but how does engine size relate to the amount of ...
0
votes
2answers
90 views

Why doesn't the engine coolant dry up while the engine is running?

Why can't coolant dry inside the engine during engine operation?
-4
votes
1answer
93 views

Why need to change gear in car? [closed]

Could someone let me know why it is necessary to change from gear to gear ?What is the scientific foundation? I heard " The higher your speed the higher your gear, the lower your speed the lower your ...
2
votes
1answer
287 views

Ford Fiesta - the colour of the water in the water container

I own a hatchback ford fiesta. I took my car out for a drive today for 10 minutes and when I came back, I opened the hood and checked that the water in the water container was quite hot (not ...
3
votes
2answers
344 views

High-pitched squealing coming from engine

I Have a Datsun Safari 1983 2,8L petrol. Recently I was driving off road with it and the next morning the fan belt was making this squealing noise. So I adjust it and all was well. 300km later a new ...
4
votes
2answers
14k views

Oil in coolant - how much trouble am I in?

I have oil in my coolant reservoir. Could it just be the head gasket or is it almost certainly the entire engine or might it be something else entirely? Thanks in advance...
1
vote
1answer
248 views

2002 Chevy Malibu spark plugs

Three of the spark plugs in my 2002 Chevy Malibu are easy to reach and change, which I did successfully. The other three spark plugs are difficult to reach, difficult to see, and are in a position ...
2
votes
2answers
166 views

Does the a gasoline or diesel engine appy fuel at high speeds when not pressing the pedal and more

Let say I directly connect a small engine to my bicycle, and that I'm superman who can overcome any force. Then I start cycling (using my legs...) - the engine starts to rotate, even though I haven't ...
0
votes
1answer
64 views

engine speeds on startup (wont idle) after sitting for years - 1986 honda civic

Engine speeds on startup (wont idle) after sitting for years - 1986 honda civic. As soon as I turn the key on it will keep speeding up higher & higher.
3
votes
1answer
68 views

Corsa Sport (2007) low compression cylinders 2 & 4

I have been having trouble with my Corsa. It sometimes just cuts out or does not want to start at random times. I have had the car serviced, I have had the starter motor replaced & am now having ...
2
votes
1answer
113 views

motorcycle oil for m50B25TU (BMW E34)?

I just bought an e34 from a friend and he said he uses liqui moly racing synth 10w-50 for the engine. My mechanic was quite surprised when I told him and said I shouldn't use that, instead use real ...
5
votes
4answers
2k views

How reliable is a second-hand Subaru 2.5 RS 04-05?

Basically, I've been a Subaru enthusiast for a few years but never been able to purchase one because I'm still a student. However, this summer I will be able to. The issue is that I need a reliable ...
4
votes
2answers
3k views

Diesel Engine difficult to start

I have a diesel powered Audi A4 B7 (2006) 2.0TDi (the 170BHP variety) with a manual gearbox, which I've owned for around 18 months. The car has just short of 100k miles and has a full dealer service ...
4
votes
1answer
204 views

2001 Pontiac Grand Am SE oil in the coolant

Recently my car started chugging and "vibrating" at low speeds, and the check engine light is flashing on and off. On inspection, I found oil in the coolant. I don't know a lot about cars, but a ...
1
vote
2answers
69 views

2003 Acura TLS running hotter than usual

I'm having some concerns with my car's engine temperature. Last weekend after being stopped at an intersection, the engine temperature went up higher than usual, about 75% of the way to the red line. ...
2
votes
1answer
108 views

Safe way to clean oil sludge around the engine?

My Case 85xt Skid Steer has a hydraulic leak somewhere but the engine area is covered in oil sludge so I can't tell where it is coming from. Is it safe to use de-greaser and or water around the engine ...
2
votes
3answers
631 views

Remove rounded manifold bolt

I'm trying to take off the manifold bolts on an old Chevy 350 (the ones that connect the manifold to the header). I got 4 out of the 6 bolts out, but 2 are extremely struck and rounded due to all the ...
3
votes
1answer
874 views

2000 VW Golf TDi (Mk. 4) grey smoke from exhaust before engine has warmed up

I have had my Golf for 8 years. It’s had good maintenance and a the record is kept by my dad. It’s just passed its MOT (Ministry of Transportation) test, and the mechanic mentioned that the tappets ...