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

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4
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1answer
82 views

Banging sounds coming in front of my car

I'm having a banging sounds coming from the front of my car. Usually they appear after 5-10 meters when I'm driving. It's like one small knock and then around 5-6 more knocks and then they stop until ...
4
votes
3answers
324 views

Car will not start Sometimes?

Hey i just wanted to ask about my girlfriends car she has been having problems with for over a year.. we had it checked but they always say nothing is wrong (usually because the car starts when they ...
1
vote
0answers
33 views

Is it good to start your car up until the engine temperature gets to the middle? [duplicate]

I usually start my car up for around 10-20 minutes before actually driving it to warm it up. I know it's not needed anymore with newer cars but is it better to do it?
4
votes
4answers
275 views

Can 100% calculated load be reached in neutral?

While searching for information about how is engine load calculated I came across this question which contains an equation for the ECU load calculations. As I understand it under fixed atmospheric ...
2
votes
2answers
80 views

Interpreting Cylinder Compression Readings

So I've been having some engine trouble with my 98 Mazda 626 GF 2L, specifically a low, rough idle and lack of power on acceleration. One of the things the WSM says to check for both these problems ...
5
votes
3answers
88 views

2005 Dodge Caravan - Erratic Misfire

The engine was misfiring for quite a while. At some point, the battery went dead due to a bad alternator and all the electrical systems went nuts. I replaced the alternator & battery. At some ...
3
votes
1answer
151 views

Replace 2003 Highlander engine w/Avalon or Camry?

I have a 2003 Toyota Highlander, 3.0L V6, FWD, mfr 12/02, with a blown engine. My local salvage yard sold me a 2002 Avalon engine that "is exactly the same except the intake manifold". I took the ...
1
vote
2answers
59 views

Does a 2010 volkswagen jetta 2.5 have a timming belt or timing chain or both

Does this 2.5 volkswagen jetta se 2010 have a timing chain or timing belt or both. And need to know how to time it
5
votes
3answers
403 views

Should I avoid full throttle when driving with a cold engine?

Apparently I should avoid full throttle until my engine temperature is warmed up fully (to 90 degrees on the gauge) Normally I just get in and drive normally after about 10 seconds, and then after ...
5
votes
2answers
93 views

Very slight arcing of good spark plug wires

While looking for the reason of occasional misfires I checked if my spark plug wires are arcing at night. There was no textbook arcing with popping sounds and pretty lights, but there was extremely ...
2
votes
2answers
102 views

Filled oil with 10L - the car now has problems with the engine cutting out or badly vibrating the car

My husband added 5L of oil to the car, he was told to add another 5L. Now the car makes a very loud sound almost like a vacuum. The car switches itself off when started. Speed picks up very slowly ...
4
votes
1answer
47 views

1997 Honda Odyssey - How do I know if the valves are still good after both the timing belts broke?

I hired a mechanic to replace my crankshaft pulley sensor. He ended up doing something wrong. We tried to crank it and it sounded like a dead battery and the sensor broke and hit the oil pump. Put a ...
2
votes
0answers
97 views

Mazda 323 F is losing power when driving?

I've had a Mazda 323f for a few years now with no faults. But now, it's running poorly with a loss of power that then picks up. I replaced the coil pack and it ran great for a few weeks but then loss ...
2
votes
3answers
67 views

2002 Mitsubishi Galant - Squeaking and starting problems

Just got this 2002 Mitsubishi Galant. I knew it had couple of problems with it, as I'm decently handy with cars. I thought I could figure out the problem. I'm a bit stumped on this one. My first ...
1
vote
1answer
30 views

Studder first starting

Hyundai Tucson 2008. Gasoline model. I live in a very hot climate and when I start my car in the morning it studders for a while. If I pump the gas, it disappears and doesn't come back. I ...
2
votes
2answers
77 views

Lapping Valves - Using Water as Test Medium

I've lapped my valves and want to check if they are sealing properly. Everywhere that I've read talks about using stuff like, acetone, gasoline, paint thinner... to fill the exhaust/intake ports and ...
5
votes
1answer
127 views

Shop replaced engine, blew about six weeks later

A local repair shop recently replaced the engine in my 06 Pontiac Solstice. They obtained a used engine from LKQ. I'm not sure how many miles the replacement engine had (unfortunately). Wednesday ...
2
votes
1answer
131 views

White smoke is coming from my engine. how do i find out what it is?

I own a 92 chevy lumina, when i drive or let it run for a little bit it will smoke from underneath the upper radiator hose. it is not the actual radiator hose as i changed it thinking it was that. ...
2
votes
1answer
137 views

Engine oil reducing almost to half

I recently changed engine oil of my Apache rtr 160. I used otul 5100 15W50. Later I started experiencing vibrations, a lot of vibrations. I checked on the engine oil. The quantity is reduced to half. ...
3
votes
2answers
65 views

No radiator fluid in resevoir

Obviously you shouldn't drive with no coolant, because in most cases obviously your car will overheat, blow a head gasket and all that fun stuff. I drive a 4cyl 2.5L Ford Ranger. One time I realized ...
9
votes
6answers
472 views

Fuel consumption at same speed of different engine

I am wondering why two car running at 100 km/h for example with a 100 hp consume less fuel that an engine of 300hp. Even if I take a supercar lighter and more aerodynamics it will consume more. But ...
7
votes
4answers
144 views

2002 Ford F350 Superduty 7.3L Turbo diesel using a quart of oil every 43 miles

This Diesel engine has been rebuilt and it didn't use any oil till the HPOP went out. I replaced the oil pump and then I noticed my turbo when going up a hill and the Turbo would sound like a sneeze ...
2
votes
1answer
112 views

What is this ticking noise while pulling away?

Lately I noticed a slight ticking noise when pulling off calmly (from a stop light, for example) at the exact moment the car starts moving. Happens when the engine is still cool, before I hit the ...
2
votes
3answers
150 views

Car engine dies when I am not pressing the Gas

Make: Chevrolet Aveo UVA 1.2 LT 2007 model. When ever the gas is not pressed, the engine stalls. Even the engine does not starts unless I press the gas while turning the key. At high speeds every ...
0
votes
1answer
103 views

Is my new car engine damaged?

I bought New Nissan 2 months ago. I was driving on down hills but as it was late at night and no car on the road, I enjoyed of high speed (4-5 min) and I didn't use the break . When we reached my ...
0
votes
3answers
172 views

Impact of cigarette lighter ports on car battery

I have a cigarette lighter hole in my car that produces 12V. I bought a cigarette lighter extender that has 3 cigarette holes and each hole has 12V so that's 36V instead of 12V. Will that damage my ...
1
vote
0answers
80 views

Oil leaking, bad valve cover? [closed]

I noticed that my oil was empty 4 days after it was full. There is oil residue on the top of the engine and on the inside of the hood. I am wondering if this could be from a bad valve cover. It is a ...
4
votes
0answers
25 views

Hiace 1996 ignition/motor problems

I have a 1996 Hiace. I was driving and it just died, nothing. Dash lights all work, but motor will not turn over, nothing from starter. It has dual fuel, and was wondering if it could be the AEB 552 ...
1
vote
2answers
259 views

ECU signals to CAN bus

What methods or ideas are out there that can match or change an SR20det ECU's signals or codes in order for a newer CAN bus system to read, for example, the power steering to work as well as the ...
4
votes
4answers
1k views

What does it mean when soot is coming out of my exhaust?

I have a 2001 Jetta Wagon (Golf Variant is caller in my country). Petrol engine. Usually rides school and back (15 miles) with engine between 2000 and 3000 rpm. Just did a 300 mile trip at ...
-1
votes
1answer
76 views

Drive no longer works on my Chrysler 300

I have 2006 300 Chrysler v-6 Hemi engine AWD 6 cylinder. I went to start my car this morning, put it in drive, but it wouldn't go. Then I put it in reverse and it would drive back as well as neutral. ...
1
vote
2answers
40 views

03 Pontiac Grand Am won't start

I was driving the car today oil light came on went 1 mile to store and got oil but was only 1 qt low put it in had about 3 miles to go got one mile when it died again pushed it to the house now it ...
2
votes
1answer
524 views

engine light is blinking now

My car had no oil in it. I went and got the oil changed, and it was running better .I filled the gas tank up and then all of a sudden the engine light started blinking and it did not have power ,like ...
2
votes
2answers
358 views

Erratic Oil pressure in a 2005 Chev 2500HD with 6 litre gas engine

Bought truck in April. about one month later oil pressure would drop to zero and warning message would display Low Oil pressure and warning chimes would go off. Local GM dealer tested with mechanical ...
2
votes
1answer
112 views

Coolant light is on even after topping off

2000 Pontiac Grand Prix Gte - My low coolant light came on so I parked let it cool down went to auto store n got the Dexcool antifreeze and filled it past the hot marker. Drove it on the interstate ...
5
votes
3answers
4k views

Does revving a car when cold make it warm up faster?

As winter comes along, I've always thought that revving the car would make it warm up faster, so the heating works better to clear the icy/steamed up windows. Does revving my car at idle to about ...
1
vote
1answer
49 views

Why does my 2012 Honda Fit's engine oil quickly get dark but my ~2009 Ford Edge's oil seems to stay quite clear?

My brother's approx. 2010 Scion's oil seems to get dark rather quickly as well. I've heard that darker oil means that the oil is doing its job and keeping the engine clean by bringing the contaminants ...
0
votes
1answer
93 views

Does using heat in the car SAVE gas?

Its well known that using heat in a car is almost free (see for example here). It is also known that using the heat can reduce the engine temperature which otherwise needs to rely on water cooling. ...
3
votes
3answers
445 views

Pontiac Sunfire mysteriously won't start

So, here's the deal: -No lights, no noise, no clicking. -Battery voltage reads fine on multimeter. Terminals are very clean and not corroded. -But it won't jump start. -Headlights turn on. -Fuses are ...
5
votes
2answers
2k views

Why is cold-start fuel mixture enrichment necessary?

I know a rich mixture is more fuel added than air in the ratio required (14.7:1), but how can it affect anything? I mean, if fuel is added but with no air it can't combust, so how can that affect the ...
6
votes
3answers
532 views

What is the effect of adding more cylinders to an engine design?

I was trying to understand more about torque when I was comparing two engines, totally different engines. one engine ( Straigh 4 ) that produces 149 ft-lb at the maximum HP given (237HP@8300) the ...
3
votes
1answer
1k views

Car won't start - replaced alternator - didn't help

I have a 5-6 years old Mazda 6 2010, 2.5L engine. My car simply won't start. I had this issue yesterday, so I called roadside assistance and they were able to jump start my car. I drove straight to ...
1
vote
1answer
208 views

Why do engines get louder with age?

My engine (Ford Escape Hybrid 2006) has gotten noticeably louder over the years. Not to the point that I'm concerned, but it has gotten me wondering why exactly engine noise gets worse with time. I've ...
0
votes
3answers
274 views

99 honda civic motor issues

I have a 99 honda civic. The engine started knocking while my boyfriend was driving it. He said it had just started. It was low on oil so i figured it was just overheating. However that didnt fix the ...
2
votes
3answers
545 views

What happen if an engine is welded directly to frame (no mounts)?

Just curious ... any downside beside a lot of vibrations?
0
votes
1answer
173 views

Does shifting gears at 10000 rpm damage my car?

If you drive a high power gasoline sports or a muscle car with a manual transmission, will it do any damage if I shift gears at 10000 rpm?
2
votes
3answers
318 views

Ticking or clicking when accelerating

So I've had my Ford F-150 for a few years now. It's a 2001 and up until the other day it was running and sounding like new. On the way back from work I stopped at the gas station to fill up. When I ...
8
votes
3answers
2k views

Car won't start, possibly due to ants in batteries

Yesterday there were a ton of ants crawling out of some hole in my backseat. I sprayed the shit out of them. This morning, when I try to start the ignition, my engine clicks a lot but won't turn ...
4
votes
1answer
118 views

Reversed the battery terminals - What damage have I done? [closed]

I inter-switched my battery wires, positive to negative. Now the car moves but does not accelerate, even with the pedal to the floor. What damage have I done by reversing the battery terminals? The ...
6
votes
3answers
229 views

Can a valve suddenly break in half? Versys 650 destroyed engine

this week-end, I had to disassemble an engine from a kawasaki versys 650 (early). The bike lost power while making ugly metal sounds. It never started again. RIP. context: 108.000km, mostly higway ...