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

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7
votes
2answers
41 views

How to flush engine coolant system after oil intrusion

My 02 Buick LeSabre has oil coming from the radiator into the coolant reservoir. Just recently I had a new motor put in to fix the issue. What would be the best/proper way to flush the radiator? It ...
6
votes
5answers
746 views

Engine on BMW G650GS 2011 does not start when it's hot

I have a rather strange problem with my BMW G650GS. In the morning, when the engine is cold, it starts fine with a single crank. There is no problem with riding, the engine works fine and never ...
3
votes
0answers
26 views

2006 Mercedes E350 4matic , v6 engine

Drove kids to school , stop to get ha and made it home then was about to leave back out and the car started to drive sluggish as if it didn't want to do . I proceeded to pull over at a gas station and ...
9
votes
1answer
78 views

Ford Tractor 5600

This is a older tractor. My question relates to the fuel system. The older fuel injectors don't have any external seals? All of them seat and 3 don't leak but one does. I was looking for a seal but ...
10
votes
6answers
10k views

Why does a diesel sound like that?

My car is in the shop for a repair, and they gave me a loaner. It's a Chevy Cruze Diesel. Sitting on the driveway, my wife said, "It sounds like a truck". It does. So what exactly it is about ...
5
votes
3answers
418 views

Honda Odyssey engine cut out

I have a 1997 Honda Odyssey automatic, it stopped running in the middle of the road and when I tried starting it again it made a loud whining sound, then I turned the key off and tried again and it ...
0
votes
3answers
170 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 ...
6
votes
0answers
52 views

Warm fuel injected engine stutters when accelerating

I have a 1994 Honda Concerto 1.5l gasoline car, fuel injected. When the engine is cold there are no accleration problems. But once it warms up it stutters if I step hard on the gas. When it does ...
5
votes
3answers
93 views

I drove my car with the dipstick left out, did I do any damage?

Please guide me. I went for a regular check up of my new Celerio gasoline driven car. The Maruti Workshop mechanic made a mistake. He left the dipstick out after he checked my oil. I figured it out ...
5
votes
1answer
32 views
9
votes
6answers
466 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 ...
8
votes
1answer
93 views

How often do you need to run a car?

I have a car that is garaged and not used much. How often should I take it out for a drive and for how long each time? I currently get it serviced every 10,000 KM.
3
votes
1answer
634 views

How often to start/drive a vehicle to keep it healthy?

In order to keep a gasoline-powered vehicle healthy, how often does it need to be started or driven? Please specify if it actually needs to be driven, or if just starting it and letting it run is ...
5
votes
2answers
623 views

Does the a gasoline or diesel engine supply 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 ...
12
votes
7answers
16k 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 ...
8
votes
1answer
79 views

Can't find schrader valve

I have a 89 camaro with a 350 engine, where can I find the fuel valve where I connect the fuel pressure tester? I looked up videos on where it's located but mine doesn't seem to have it, is there ...
4
votes
2answers
5k views

Engine hesitates and sometimes stalls after filling gas tank

On my car (2005 Dodge Grand Caravan) when I fill up my gas tank, almost immediately afterwards pulling out of the gas station my van sputters, misses, hesitates, call it what you will. The past couple ...
6
votes
3answers
356 views

Engine temperature range?

Our 'new' ('07) Cobalt has a digital temp readout. Temperature varies substantially, depending on driving conditions - I've seen it as high as 210(F) on city streets, on a not-very-warm day. Our old ...
6
votes
2answers
49 views

Rhythmic “soft screeching” noise for a minute after cold starts on cold days … sometimes

2004 Infiniti G35, 155k KMs (~97k miles), totally stock. Intermittently, after cold starts on cold mornings, I hear a "soft metal screeching" oscillating roughly twice a second. The sound disappears ...
11
votes
3answers
5k views

Why does diesel engine have redline much lower than petrol engine redline?

why do diesel cars redline at around 4500 rpm whereas petrol ones around 6500 -8000 rpm? Does this have something to do with the compression ratio?
19
votes
4answers
1k views

What are the benefits of a dry sump?

I've heard references to dry sumps, usually in reference to racing engines. But more recently I came across an article about a 'supercar' which stated that it had a dry sump. What are the benefits of ...
6
votes
1answer
47 views

08 Silverado 5.3 rough idle and dark cold start exhaust

I recently bought a 2008 Silverado 5.3 with 77k on it. After a couple weeks I noticed that at idle the engine would stumble and my rpms would drop slightly. It eventually set off the check engine ...
7
votes
3answers
51 views

Where can I get help finding my way around the engine of my specific model of car?

After a bit of intensive study I've learned the ins and outs of how a car works, the majority of it. Not well enough to stop needing a mechanic, but well enough to understand what every component ...
5
votes
2answers
52 views

Engine sputters when turning left corner

In my 1986 Ford F-150 (carbureted) when I go left around a corner, the engine sputters. Feels very similar to running out of gas, but it picks back up once I stop turning. Only happens in a sharp ...
16
votes
1answer
9k views

Is this what is making my car sound like a racecar?

Recently, my car (2000 Mercury Grand Marquis) started sounding like a racecar: the engine became very loud. There's clearly something going wrong with the exhaust system. I'm trying to understand ...
14
votes
2answers
887 views

Why is a W-16 called, well, W?

The term "W-16" seems to imply some sort of configuration that resembles the letter W, which implies three banks of cylinders with one sharing a common cylinder head. In fact, the Bugatti W-16 in the ...
7
votes
1answer
139 views

Scatter Camshafts - What are they and why do I want one?

It seems in the world on mini's as in Mini Cooper, there is a camshaft called a scatter cam. It changes the timing for cylinders 2 and 3. I've heard of changing the timing to have 1 and 4 firing at ...
12
votes
2answers
160 views

Motorcycle Four Body Carburetor Synchronization Balancing

I would like to adjust four-body carbs by myself, in order to avoid spent money every time. What are the basic rules, tools and secrets of synchronizing multiple carburetor bodies?
8
votes
1answer
272 views

Is the unreliability of the 400 Small Block Chev an Urban Myth?

The Gen 1 Small Block Chev gradually grew to 400cid. To achieve this massive volume the bores were siamesed and the conrods were shortened.The engine when produced in passenger car form had the same ...
3
votes
0answers
24 views

Audi A1 makes a loud engine sound

I recently started hearing really loud noises coming from my engine. When I turn the engine on the noise is much louder then normal. When I open the hood to look at the engine I can see it is shaking ...
4
votes
0answers
189 views

High Idle and Engine Noise in Chrysler 300c Hemi

I recently bought a 300, it had 170000 miles on it. When I test drove it nothing felt wrong what so ever. Week later it started turning off by itself in the middle of the freeway or alleys. Got it ...
6
votes
0answers
461 views

Strange surging and like it's going to stall, hesitant whilst idling

I have been having an issue with my Peugeot 207 (2008 model) 1.6L VTI petrol engine. The cam cover was replaced by the garage but hasn't fixed the problem. I have lost faith in them. I managed to ...
2
votes
1answer
29 views

Replace lifter without removing heads or engine in 2000 Mustang?

https://www.youtube.com/watch?v=F-9dFdGq-vI I don't see why it wouldn't work as long as I torque everything down correctly and put it back together correctly.
8
votes
3answers
92 views

Merits and demerits of OHV vs OHC

Can anybody tell me about the merits and demerits of OHV (overhead valve) vs OHC (overhead camshaft)? Some experts say that an OHC engine will run faster than OHV engine. Why is this?
4
votes
2answers
1k views

Motorcycle heats up within minutes of driving in the traffic

Ice cold engine of my KTM Duke 200 heats up and shoots the highest temperature and the gauge reaches the extreme within like 15-30 minutes of driving it in traffic. And the engine stops and doesn't ...
8
votes
3answers
40k 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...
3
votes
3answers
437 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 ...
10
votes
1answer
48 views

VW Bora V6 2005 - Sump Replacement Question

My sump cover has a huge hole and I'm going to replace it. Can I take the cover off from underneath the car or does the motor have to be lifted to recover the sump cover?
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 ...
0
votes
1answer
63 views

How to go VTEC with a D16A8 DOHC engine [closed]

Living in South Africa. I have a 160E Honda Ballade ABS and a D16A8 motor. Need to go VTEC BT, not sure if I can go F18 SOHC VTEC, replacing the engine and gearbox and management. Is it possible to ...
5
votes
1answer
55 views

Rod knock in my engine?

Kindly assist. My 1GFE engine had a rod knock sound and I replaced all the bearings, oil filter, cleaned the sump & strainer and tolled it with brand new fully synthetic oil. The engine ran for ...
5
votes
2answers
82 views

Can engine oil type cause a car to overheat?

I own a Peugeot 405. At first I was using 20w-50 engine oils but The last time I went for changing the engine oil I used 10w-40. After that The engine temperature rises constantly and (even when it's ...
6
votes
3answers
530 views

After Replacing EGR valve and tube: repeat of code P0401 for 98 Accord V6

About 13 months and 7500 miles ago, my mechanic replaced the EGR Valve and Tube and cleaned the intake to solve the low airflow problem. Now I'm again getting an insufficient flow warning with my ...
6
votes
0answers
43 views

semi loud growling noise at all speeds

I have a 1998 GMC Sonoma SLS with a 4.3 l V6 Vortec. It used to purr, now it growls, sounds like a small diesel engine. Vibration can be felt (mostly in the dead pedal) and also vibrates/growls in ...
4
votes
0answers
82 views

Radiator has a leak and the upper hose is clogged, car does not overheat. White smoke from upper hose

My car is a 2003 Buick Century and it has been leaking for the past few months (puddles of coolant under the car). Now the car begins to have white smoke coming from the engine and it has a sweet ...
3
votes
1answer
83 views

1996 Mustang GT won't start with shifter in Park, but will start in Neutral

I just had this weird problem today. The engine will turn fine, but won't start with shifter in Park. Once started in Neutral the motor runs fine with no hesitations. Battery is strong. Any ideas?
12
votes
4answers
27k views

Engine power specification at different rpm?

Car companies advertise power of an engine at different rpms. Car 1: 80 PS at 6000 rpm Car 2: 85 PS at 6500 rpm What does the power at different rpm mean? Does it mean Car 1 has better power than ...
0
votes
0answers
44 views

Cleaned Battery Corrosion and Now Engine Won't Rev

I had a large build-up of battery corrosion on my car battery. I unplugged the cables off it, cleaned the terminals with soda. After reattaching everything, I now find that while my truck will start, ...
3
votes
1answer
37 views

Engine won't rev past 2500 in Park/Neutral

I am just through replacing the catalytic converters on an 06 Ford Expedition with about 151k miles on it. To break in new cats, you must run it at idle for about 5 minutes, then increase the engine ...
3
votes
3answers
186 views

2004 powerstroke white smoke now no start

I have been trying to fix my truck for a while so long story. I need help bought a 2004 power stroke with 100k miles. It ran well for 15k miles then started having low power for first few minutes to ...