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

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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 ...
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1answer
60 views

Are there any vehicle engines that don't have a mechanical oil pump?

I my answer to How to move car a small distance without tow dolly I suggested putting a manual transmission vehicle in 3rd gear while towing with a rope or strap to apply back pressure and help keep ...
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2answers
57 views

What exactly is an intake manifold?

This is one of those phrases I have heard a lot but never bothered to ask what it meant. Until now. What exactly is an intake manifold?
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1answer
87 views

How to increase horsepower? [closed]

How can you increase horsepower on an engine through general modifications without modifying the internals of the engine? Are there benefits or tradeoffs from doing so? What kind of things could I ...
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1answer
105 views

Is pre-heating a modern engine worth it?

I have a 2011 Toyota Yaris and live in climate where -5C temperatures are common and -20C are not unheard of. The car has an electric engine pre-heater installed. I don't know exactly what is the type ...
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2answers
1k views

Cadillac CTS 2007 3.6 oil consumption

3 months ago I bought Cadillac CTS 2007 3.6 with 31k miles, next day I went to local garage and changed the oil, filters, etc. I have driven 7k miles since and when driving last week car started ...
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1answer
823 views

Importance of engine compression ratio

Please explain the importance of Engine Compression Ratio. In Text books I could find the following importances Engine Cold starting Characteristics Torque Generated Fuel Consumption Noise ...
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1answer
484 views

Old Air Compressor Rebuild (and general piston engines) - Oil On Cylinder Walls?

So I have recently acquired (for free) a circa 1973 Speedaire 20 gallon compressor with no history. After a short while of use the check valve failed and when I removed it I noticed it and the air ...
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2answers
86 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 ...
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1answer
69 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? ...
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1answer
49 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 ...
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1answer
96 views

Why do casting numbers on engine blocks matter?

In this question the OP references the block casting number his 454 GM motor. Why is the block casting number relevant information when talking about an upgrade to an American V-8 engine? Is this ...
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2answers
64 views

What senses/controls how much fuel is spent for a given RPM?

When maintaining a constant speed on the highway whether up, down or flat the engine still has the same RPM (assuming the incline is shallow enough not to require a gear change) - common sense would ...
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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 ...
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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 ...
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1answer
99 views

Honda Shadow VT750 louder exhaust noise, low power

Recently, my motorcycle got smashed by my girlfriend (who was driving behind me) in the rear. As a result of the impact, I got propelled into the rear of the car in front of me. Both fenders are ...
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3answers
404 views

Honda FIT GP1 HYBRID 2011 knock

in my auto gear honda fit gp1 hybrid car, (mileage 56 000 KM) I had a engine tune up and changed my injectors (8 injectors) last month and after 2 weeks i started getting a slight knock (jerk or ...
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1answer
966 views

Acceptable amount of slack in a timing chain with high mileage?

1995 Chevy S-10 Blazer - 4.3 L Vortec V6 (vin W with PCM) - 230,000 miles original owner. FWIW, this model car/engine does not have timing chain inspection and/or changing as part of the routine ...
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2answers
705 views

What causes too much fuel for my Briggs and Stratton engine?

I recently bought a generator that uses a Briggs and Stratton 17hp Vanguard engine. Before purchasing the generator, it had not ran in several years. The fuel was stale and the oil needed to be ...
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1answer
15k views

Which Reluctor Wheel on LS Engines?

Around 2005 or 2006, GM started using a 58-tooth reluctor wheel, where before they used a 24-tooth wheel in the LSx based engines (LS1, LS2, LS3, etc.). This wheel is used as a way for the computer to ...
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5k 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 ...
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3answers
3k views

Cylinder 1 and 4 has low compresion, after engine has been redone

I have a Opel Corsa 1999 B type. We had a mechanic redo the engine about 4 months ago, but this week it just does not want to start. Today had other mechanic look at the engine, and did a quick ...
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593 views

engine underpowered in idle - what can be done to improve a diesel engine power at low RPM just a bit?

There is an engine which is a bit underpowered when idling, it can not even keep the car moving on a flat road when in gear and idling at 700..800 RPM - see link. What can be done to improve its ...
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3answers
28 views

Engine oil sludge

My question is, have ever heard of it making engine oil gel, or turn sludgy if you can call that a word? I haven't, but 05 Chevy Equinox I'm servicing had this happen. Not sure if it started before or ...
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2answers
44 views

2004 Dakota problems

I have a 2004 Dodge Dakota 4.7. My truck started to shake going down the road. I heard a pop unsure if it was metal slapping or a backfire. Had it towed home and hooked it up to a computer. The codes ...
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1answer
432 views

Engine run-on (dieseling) condition suddenly getting much worse

1995 Chevy S-10 Blazer - 4.3 L Vortec V6 (vin W with PCM) - 230,000 miles original owner. OBD-I (or 1.5) GM transitional year with OBD-II style connector. I've been working on my vehicle a lot ...
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1answer
986 views

Is cylinder leak down test needed if compression test results are fine?

If I compression test my engine and the results are fine, could there ever be any need to leak-down test it as well? IOW, can a leak down test ever fail if the compression test is fine. RELATED: ...
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1answer
321 views

Is it possible to paint my Mk1 Golf Engine in either Matte Black or Grey? If so, how?

I am currently doing up a Mk1 VW Golf and I have reached the stage where I need to make a decision on my engine paint. It will be at shows so I want something nice (but not Chrome). Is there any way I ...
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1answer
485 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 ...
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2answers
409 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 ...
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4answers
3k views

Add 2 stroke oil to a 4 stroke petrol engine during burn-in period

I'm planning to get a new petrol (gasoline) car soon. A friend of mine, who worked as a motorbike mechanic when he was young, told me he puts a small quantity (125 ml / 4 oz) of 2 stroke oil in the ...
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1answer
32 views

I hear a click when i go to start my car… But starts up on second attempt

Why is my 2009 chevy malibu doing this click before i start it up?
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1answer
46 views

1995 Dodge Viper

So my friend is interested in this 1995 Dodge Viper he's seen on a pre-owned showroom and I have some questions that I'd like to ask. What kind of questions related to that specific car should we ...
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1answer
47 views

revving sounds and the engine cut

I have a 2002 Subaru Forester. My engine light came on a couple of days ago and I was planning on bringing my car in to have it checked out. This evening as I was driving I felt like the car would ...
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1answer
58 views

New fuel pump and spark plugs but gas pedal still not responding

I have a Ford Explorer 2007 and I'm experiencing the car cutting out on me. For example, when turning a corner with the engine revs low, the gas pedal wouldn't respond and then the car cut out. It ...
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1answer
97 views

oil level on dipstick

Which way should this dipstick be placed? When placed in with the bend facing towards the engine it gives a different reading from when placed facing the opposite way. There is not a great deal of ...
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1answer
173 views

What is the Carter Gas Filter for?

I'm confused with this, are there any combustion gasses in the carter and why do they need to be filtered? What is the Carter gas filter, where is it located and what is its use? Is there a way to ...
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1answer
3k views

Grinding Sound at Specific RPM/Speed

I have a 2011 Ram 1500. For about a month I thought I was hearing a clunk between 2nd and 3rd gear. I finally decided to listen carefully by turning my radio off. I now certainly notice it, but it is ...
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1answer
57 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 ...
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1answer
80 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 ...
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1answer
82 views

Brake Mean Effective Pressure, how is this an effective measurement tool for engines?

Many engine designers measure success with Brake Mean Effective Pressure What are the equations used to calculate Brake Mean Effective Pressure? Why is this a more or less effective measurement ...
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2answers
104 views

Toyota Avensis '99 - engine performance problem

My girlfriend and I drive an old Toyota Avensis that was produced in 2000. Its engine is Toyota's 3S-FE. Let me spare you my theories and tell you what symptoms arise: When the engine is cold, it ...
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1answer
150 views

Reliability of water test for valve seal

I took my valves out, cleaned and lapped them and put them back together. I also put new valve stem seals. At least on one side of my V6 Tacoma. I performed several water tests to check the seal of ...
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2answers
187 views

replacing distributor— spline doesn't align

I'm working on my 63 impala (283 motor) and the previous owner had put a beat up Delco HEI distributor on the car, but it's so large that you can't really time it correctly-- the cap hits the firewall ...
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1answer
242 views

Yamaha FZS Ver- 2.0 Engine Seizure

I gave my bike (Yamaha FZS ver 2.0) to an authorized service center for it's first-time service. The mechanic didn't fit the drainbolt (which is under the engine) properly causing the engine oil to ...
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2answers
6k views

Ticking noise when accelerating

I have a Vauxhall Corsa "C" (2003)(EU) which is a standard 16v 1.2 petrol, the engine is chain driven and sits at 50k. I don't think it was well looked after (service wise) in previous lifes. ...
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1answer
716 views

Random Misfiring - Tried All Basic Fixes - Tech Says Engine Ground

Starting about a week or two ago, my 3.4L engine (2004 Chevy Monte Carlo LS) has thrown a p0300 code, random misfire. Here are the things I've done: Changed spark plugs and wires Knocked fuel ...
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4answers
1k views

Engine repeatedly dies at shorter and shorter intervals this cold morning, finally won't start

I have Pontiac Grand Am 2004. It's been needing some regular maintenance, but other than that runs mostly fine. When I went out to start it this morning, it started fine. I went to start brushing snow ...
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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 ...
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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 ...