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

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2
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0answers
64 views

P0304 code on PT Cruiser

I have a 2005 PT Cruiser Convertible that's leaking oil in #4 cylinder causing engine light to come on. Now, I have changed valve cover gasket and tube seals, spark plugs and wires and coil, pcv ...
6
votes
0answers
49 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 ...
9
votes
3answers
119 views

Should I replace piston rings on chevy 350?

I recently acquired a chevy 350 manufactured in 2015 for free because of some crank issues. I'm in the process of rebuilding it and have finished the disassembly of the engine. The engine itself only ...
4
votes
1answer
52 views

Lean Fuel Code on V10

I have 1999 V10 Ford chassis on a 2000 Coachman motorhome. Engine starts great when cold, runs great, idles great, no skipping, missing, etc. Problem is that after driving more than 30 minutes or so ...
2
votes
1answer
45 views

2004 Honda Pilot wont start

I have a 2004 honda Pilot. Ok look carefully it has 510,453 miles on it. It wont start. I had a bad alternator for 2 weeks over charging my battery. I changed it. New spark plugs also. So 2 days ago i ...
4
votes
4answers
101 views

Will my 2002 Mustang make it from California to Iowa?

I have a great 2002 Mustang automatic 6cyl in great condition, but I am a worrier and want some outside opinions. I am the second owner of the vehicle. Have owned it for 1year, 7 months and I get my ...
5
votes
1answer
81 views

engine push rods

I have a Toyota owner Jeep. Had a blown head gasket, most likely cause it got over heated. I removed the head and had machine shop do a valve job and had the head re-surfaced, put together, set the ...
4
votes
1answer
59 views

Vehicle tries to stall when at a stop

Have a 2009 Saturn. Two weeks ago I took it for a basic oil change at the dealership and requested that it be checked out for any other problems but I have noticed that sometimes at a stop light it ...
4
votes
1answer
43 views

Can getting rear ended crack your engine mount?

I was sitting at a dead stop at a traffic light when a pickup truck rear-ended me. I drive a Honda Accord and the bumper withstood the impact pretty well but still needs to be replaced. Immediately ...
5
votes
1answer
75 views

I have engine oil in my coolant. What might be the reason?

I have purchased a pre-owned car. After the purchase I saw there was engine oil in the coolant reservoir and also the coolant level is going down slightly. Engine is not heating up. What do I do? ...
8
votes
1answer
101 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.
4
votes
2answers
70 views

Putting a cover on the bike while engine is hot

Is it safe to cover your bike as soon as you shut the enigne after a 20 mile ride? I cover 40 miles daily to and fro for work. I reach home around 11 pm and barely have the patience to climb down from ...
3
votes
2answers
79 views

fuel system problem

I have a 89 camaro I personally don't think it's a fuel pump issue and I recently changed the relay, but whenever I turn the key over sometimes I hear the fuel pump turn on sometimes I don't. Could it ...
3
votes
0answers
49 views

Engine jolting and struggle starting

I drive a 2002 VW Polo automatic, and in the last few days it's really been struggling to start when it's cold, and then this morning the car would jolt on acceleration every now and again, when the ...
4
votes
1answer
89 views

Diagnosing a rhythmic engine noise

I have a 2000 Toyota Camry with the 2.2l 4 cylinder, 5S-FE engine. The car has 143k miles on it. I currently run 0w40 Mobil 1 full synthetic motor oil with the Mobil 1 filter. When I was changing ...
5
votes
1answer
58 views

Civic R18A2 oil consumption

Looks like my Civic burned or lost 2L of oil in the past 6 months, I think that is excessive. At previous oil change garage mechanics advised me to use 5w30 viscosity oil because 0w30 is too thin. I ...
0
votes
2answers
43 views

94 Jeep Grand Cherokee Laredo

My '94 Jeep seems to want to stall out at red lights and stop signs. It runs fine otherwise. However, upon cranking first thing of the day I have to let it idle for maybe five minutes before driving. ...
6
votes
1answer
41 views

Rubber gasket maker on rocker cover

After recently taking my car to have a new rocker cover gasket fitted as it was badly leaking I noticed the guy who did it put a ton of gasket maker on the rocker cover when he sealed it, heavens ...
9
votes
1answer
119 views

What are the various kinds of tappets / lifters and the advantages / disadvantages of each

A previous question about tappets found here: What are Tappets? covers the basics of tappets. If we go the next step, here are my questions: What are the various kinds of tappets / lifters? What ...
4
votes
1answer
104 views

Is intentional kick-down bad for the engine?

I have a car with automatic gear (Mitsubishi 1600cc, if it matters) and sometimes when I want to gain speed quickly (e.g. when passing a slower car in a two-way road) I do a kick-down. I know it ...
1
vote
0answers
55 views

City golf 1.3 overheating badly

I bought a new thermostat and heat gauge switch, however, my car is overheating. Every time I fill it with water, it sucks the water and I have to refill it. When I switch the car off it over heats ...
4
votes
1answer
99 views

My 95 civic lx from hell

I bought a civic from a couple of girls who had previously said that they had a bit of trouble with the car overheating, but it never broke down on them. It had 120k miles on it and they were asking ...
10
votes
1answer
197 views

What mechanical revolution is measured in “RPM”?

I do realize that it stands for revolutions per minute, but what are the revolving pieces that are measured? Assuming it is the crankshaft, is RPM calculated by the crank shaft sensor, or by some ...
2
votes
1answer
73 views

How good is auto engine start stop feature? [closed]

Some new car models feature this auto engine stop when the car is in complete stop while you foot is on the pedal and auto restart the engine once you release it. Is this "feature" any good? I think ...
4
votes
2answers
80 views

any downsides to early spark plug changes?

Are there any downsides to early spark plug changes? some say 10k 15k etc and some do it as early as 5k =S but would it be okay to get into the habit of changing them after each oil change (6k) miles ...
1
vote
1answer
102 views

OIL ON MY ALTERNATOR

My 1996 XH Ford GLI LONREACH UTE with a 4.0 Tickford motor 5 sp man, had a oil leak (oil leak fixed! and I was quite proud of myself) from the rocker cover gasket, resulting in enough oil that would ...
1
vote
3answers
50 views

03 Pontiac Grand Am will not start. Transmission problems?

I have an 03 Pontiac Grand Am. About 9 months ago I had to put in a new motor, I've also put in a new starter and battery. For the last 5 months my car has not been able to go over 50 mph without my ...
6
votes
4answers
303 views

Do air filters purifty air better with age?

I have been reading in a few places that air filters get better with age, is this true? And how much better? Would it have any effect on quality of the oil or make oil dirty faster? Or is there ...
7
votes
1answer
109 views

Short shifting after full throttle

Other than normal wear and tear, are there any detrimental effects or added harm done to the engine by going full throttle in 1st and/or 2nd gear, then shifting up well before redline (say 4k rpm on a ...
2
votes
2answers
79 views

1999 Toyota Tercel shakes when stopped

The car is old, I know, but it only recently started doing that... When it's in park, and the engine is on, there is a non-noticeable shake, but when it's in drive, and I'm stopped at a light the car ...
9
votes
2answers
575 views

What's the cause of Diesels' typical clatter noise?

I guess it's related to their basically running off knocking, but if I were to explain it to someone like this, it wouldn't convince me neither. [Edit] From ...
6
votes
1answer
128 views

Electric water pump control

Electric fans are now common on cars, both aftermarket and stock. The advantages in horsepower, faster warmup, and hence emissions are well documented elsewhere. The same reasoning can be applied to ...
4
votes
1answer
42 views

ENG PWR REDUCED 2009 Chevy Cobalt LS

I have a 2009 Chevy Cobalt bought used a year ago from a dealership near me. It has about 81,000 miles on it and just recently started messing up. My coolant temp will start heating up to about ...
16
votes
5answers
3k views

Aluminium engine vs Cast Iron engine

What is the advantage that the aluminium engines provide over the cast iron engine apart from the fact of rusting and weight reduction. Manufacturers like to boast about their all new aluminium ...
14
votes
2answers
411 views

What is a leak down tester and what can I do with it?

Background There are quite a few head gasket related questions on the site. Coolant or water in the oil, oil in the coolant or water in a radiator, etc. I'm thinking that some instruction on howto ...
12
votes
3answers
889 views

Cold air intake causing rich condition

This is a follow up question to my initial question which can be found here : LTFT and STFT values are off and don't make sense Car is a 2015 F10 M5 Mods : Cold air intake, aftermarket rear ...
13
votes
2answers
177 views

How do I troubleshoot the source of oil in my coolant?

I would like to know the step by step troubleshooting procedure for discovering the source of oil appearing in coolant. There are several different points of failure that can be the root cause for ...
6
votes
1answer
48 views

Oil leakage or normal engine procedures

It was raining yesterday and I noticed the typical rainbow colouring of some of the water around my car. Couldn't tell there and then if it was a car body fluid leak or just the water going trough the ...
2
votes
0answers
16 views

I have oil in the coolant of my Suburban what is the cause? [duplicate]

I have a 2002 Chevrolet Suburban with a 350 engine it has oil in the coolant. What is the cause? It has over 200000 miles.
3
votes
1answer
65 views

Over heating of my 05 Honda Civic

I first purchased my Civic in Jan of 2015. My first car had terrible over heating problems so I decided to get rid of it for my civic. Turns out, my Civic has the SAME problem. I decided to take it ...
4
votes
1answer
65 views

Starting Enfield with low/dead battery

My bike has a very low/dead battery and it doesn't start. What I did though was, kick the bike for few minutes and later it started, but when I tried to move the vehicle by putting it in first gear it ...
1
vote
2answers
59 views

Squeaking sound before the engine starts

I just imported an Isuzu Bighorn (1992 model) from a reseller. When I turned the key on the engine only squeaks and squeaks. After several trials the engine struggles and eventually starts. I don't ...
2
votes
1answer
46 views

High pitch hum/ringing

Ive started to notice that there´s a high pitch hum or ringing (sort of like a high pitch ringing in your ears sometimes) when the engine is running. And when i turn off the engine its like turning ...
3
votes
3answers
223 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 ...
5
votes
2answers
107 views

What does NM@rpm mean in car's spec sheet?

I checked my car's specs sheet this morning and in it I noticed: Torque NM@rpm: 145@4600 What does NM@rpm mean?
3
votes
1answer
67 views

What does BHP@rpm mean?

In my car's specs sheet I noticed: Power (BHP@rpm): 117@6600 What does BHP@rpm mean?
2
votes
2answers
58 views

Higher idle RPM on first start at morning

Unlike starting the car in the afternoon, after you've already started it at another time of the day. I understand that the higher RPM can be because of the temperature, however on hot days it's still ...
3
votes
0answers
71 views

BMW 320D 2011 ED - Engine Malfunction Icon

driving back from work and this warning light came on.. the car wet into limp mode but then was ok after 1 second. No lights on after that! today the same thing happened driving to work came on for 1 ...
2
votes
1answer
54 views

No water flow in the radiator - 99 Cadillac STS

What's wrong when water doesn't flow from your radiator. I already put a water pump and a thermostat on putits still running hot. What could be the problem?
1
vote
0answers
75 views

After many repairs engine still vibrates (1995 Ford Probe, 4-cylinder, automatic)

If memory serves me correctly, repairs / replacements include: all mounts (engine and transmission), torque converter, entire electrical system, harmonic balancer pulley, various sensors, checked for ...