Internal Combustion Engine. Most engines in road going vehicles are 4-cycle internal combustion gasoline engines.

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17
votes
4answers
28k views

Driving in second gear at 65+ mph

I accidentally drove my 2000 Grand Marquis on second gear on the highway. I was going 65 for like 5 minutes and tried to get it to 70mph but the car was shaking, when I realized I put it into regular ...
4
votes
2answers
1k views

OVERHEATING 07 grand prix

My car has been overheating bad I took it to auto zone and hooked it up to the check engine thing and they said it was getting to 207 withing 10 secounds. It get hot fast and my heat doesnt work ...
1
vote
3answers
2k views

How do I determine if my Toyota Camry 1994 LE has a 5S-FE or 1MZ-FE engine?

My car: Toyota Camry 1994 LE, 4 cyl, 4 door sedan. What is the type of the engine?
1
vote
0answers
30 views

New car should run slow for better mileage - Myth or reality? [duplicate]

I just bought a Ford Ecosport and it has been only hours old. The dealer told me to drive the car at as slow speed as possible for the first 3 months (not more than 80 kmph) although my car can easily ...
1
vote
2answers
3k views

Lower quality oil vs high quality oil [closed]

tl;dr Which is best? Buying high-quality, longer-lasting, but more expensive oils and changing oil less frequently or buying lower-quality oil but changing more frequently? As I'm trying to find my ...
1
vote
1answer
267 views

Mean Piston Speed in Turbocharged Vs. Naturally Aspirated Engines

Does anyone know why the mean piston speed might be lower in the average turbo gasoline engine compared to the average naturally aspirated engine? Scratching my head to figure this out but no luck so ...
1
vote
1answer
107 views

Overflow tank's lid has been opened for a long time

I've just found that overflow tank's lid has been opened by itself. I dont know how long maybe four months since I bought it. Coolant level is now above the full mark. Does it cause any damage to the ...
20
votes
11answers
153k views

What happens if a single spark plug unexpectedly goes down in a multi-cylinder engine?

AFAIK vehicle manuals say owner must replace spark plugs every N miles. Suppose he fails to do so and a single spark plug unexpectedly dies in an engine with multiple cylinders right in a freeway. ...
6
votes
2answers
3k views

Really high idle after tightening spark plugs

I had a very nasty tick in my engine after doing a bunch of work to it, I just redid my chain tensioner which went a long way to fixing it, then I found that spark plugs could cause a tick, so I ...
0
votes
1answer
107 views

Oil change: which is the best option? [closed]

I am a new driver and need to change oil. I have following options. Which one should I select? My car: Toyota Camry 1994 LE, 4 cyl, 127000 miles. NTB: $19.99 It includes following services: Tire ...
1
vote
1answer
184 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
2
votes
1answer
181 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
842 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 ...
-2
votes
3answers
1k 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
4k 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 ...
3
votes
2answers
952 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 ...
1
vote
1answer
2k 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
361 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
692 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
33 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
102 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 ...
1
vote
2answers
96 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
1answer
3k 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
273 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
414 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)
18
votes
2answers
10k 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 ...
1
vote
1answer
2k 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
296 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
475 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 ...
7
votes
2answers
20k 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
330 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
236 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
934 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 ...
4
votes
2answers
698 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 ...
1
vote
1answer
556 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 ...
1
vote
1answer
106 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.
2
votes
1answer
201 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 ...
4
votes
1answer
621 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
418 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
245 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 ...
4
votes
1answer
3k 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 ...
0
votes
2answers
2k views

VW 1.4 TSI EA113 Variations

What does VW do to improve HP and Torque from their 1.4 TSI engine? e.g.: CAXA: 90 KW @ 5000 200 NM @ 1500-4000 CAVD 118 KW @ 5800 240 NM @ 1500-4500
2
votes
2answers
219 views

Holden Commodore not moving

I own a petrol powered Holden Commodore car 1998 model and it worked fine till last week. Suddenly it stopped moving freely. When I press the accelerator up to 30% it makes noise but doesn't move. If ...
-1
votes
2answers
71 views

What do these lights mean?

When I stop the car (by hitting the brake pedal), the engine all of a sudden stops while on drive. Here are the lights I get: What do they mean? Is it a battery problem?
3
votes
1answer
389 views

How often should spark plug wires be replaced?

I last replaced them with the plugs about 4 years/60-70k miles ago. I bought platinum plugs I if I remember correctly, so I still got some life on those. The car (2001 Buick Regal) is still in good ...
2
votes
1answer
389 views

Cold start Squeak noise

I have an 04 Toyota Camry Solara. The car is in very good condition at 165k miles. Although since two winters ago I have noticed only in the cold mornings when I first start the car there is like a ...
4
votes
1answer
517 views

When I remove a spark plug is it bad news if dirt or grime falls into the engine

Despite my best effort to clean up a corroded spark plug and blowing the area with an airline before removing would it be bad news if dirt or grime falls into the engine in the process of removing it? ...
1
vote
1answer
315 views

How to know if a '97 Ford Escort Engine is Federal Emissions or California Emissions

I did a search on the VIN and the engine type is listed as: 2.0L I4 SPI Can anyone tell if it is California or Federal Emissions? From what I've been told they have completely different intake ...
7
votes
2answers
2k views

What is the likelihood that my crankshaft is warped?

This may be an involved question so bear with me. :) I have a 1998 Honda Accord EX (4cyl) with 281xxx KM, and last week I was told by my mechanic that the harmonic balancer is warped. And in fact, ...
4
votes
1answer
766 views

Misfiring Engine Hyundai Accent Executive

My Hyundai Accent Executive is 2001 model. Recently the engine started misfiring badly during idling with Air conditioner on. It is almost like the engine is going to turn off any moment. The ...