Questions tagged [engine]

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

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5answers
6k views

Running Harley for 100 miles with no oil

The bike just had the oil change, however they forgot to put the oil back into motor. I left on a trip and rode 124 miles before any issues. I starting hearing this loud, loud noise from motor and I ...
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1answer
43 views

Is it true that crankshaft counterweights help with extending the life of the main bearings?

I have heard that use of counterweights in crankshafts also help with bearing life because "counterweights reduce peak main bearing inertia loads". Is this true? If its true how does that ...
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1answer
429 views

Toyota Funcargo (Yaris Verso) 1.3 VVTi (2NZ-FE) connector near oil filter

I was seeing my Yaris Verso VVTi 2NZ-FE engine and a cable was hanging (with light grey connector, 4 pin socket, and a single wire line) that is not connected anywhere. I tried to search for the ...
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1answer
18 views

Rod knock on first startup in months

2003 Mitsubishi Lancer 150,000 miles, manual 5speed, no check engine lights. This car has been sitting for about a month or two and when I tried to start it, it wouldn’t start so I eventually tracked ...
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1answer
91 views

Engine Runs Cold Nevers warms up above 1/4 way. 1995 Chevrolet G20 4.3L V6

1995 Chevrolet G20 3/4 ton Van 4.3L V6. The van never runs any warmer than 1/4 on the instrument panel. I have replaced the thermostat twice. Same issues. I have replaced the temperature control ...
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2answers
44 views

Severe "Clunk" while riding

I have a 2009 Suzuki Boulevard M90. Been running great, with little to now problems since I bought it new. The other day as I was riding, a large "clunk" happened. It felt like it was on the ...
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1answer
27 views

Burning smell comes from the engine oil sump area

My motorbike has been suffering from an issue which goes like this . Whenever I drive for a few kilometres a smell comes from the engine oil sump area even if the engine oil is brand new . One year ...
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1answer
144 views

Mapping VW DTCs from a scantool to the raw data obtained

I scanned a VW Golf TDI 2015 using a scantool (at a workshop) and it gave the following 2 codes - Engine module: P0103 - Mass Air Flow (MAF) (G70): Signal too High Instrument cluster module: ...
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1answer
53 views

Citroen C3 2006

I have a Citroen C3 2006 petrol engine that for some reason it never been used from new. It only have 33 km, it was stood all this time, obviously without battery. Now we are trying to start it but it ...
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1answer
98 views

Why does my car have a knocking sound but i have oil in it?

my car is over half way full of oil, but it has a knocking sound. I'm not sure if its from the oil or what but it knocks faster as I rev the engine or speed up. Can someone please help me? Thanks
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2answers
956 views

Vehicle Stalls at lights and going up hills

After driving a few miles, 2002 Ford Explorer will start sputtering after stopping at a light. Also, does the same thing when going up hills.
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1answer
77 views

What do you think of these spark plugs?

Still trying to diagnose an erratic positive fuel trims. Next step will be making sure that the lean condition i have is caused by less fuel delivered or weak spark not a vacuum leak. I pulled spark ...
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1answer
34 views

2019 QX50 CVT: Sudden drop in MPG + change in engine noise -- no codes

I'm seeing a sudden, significant (>40%) drop in MPG from my 2019 QX50 (FWD, CVT). I do a fairly regular long drive from SF to Sacramento, and highway MPG for these trips has always been ~31-33MPG; ...
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1answer
12 views

Bajaj pulsar RS200 shuts off while trying to slow down or stop the vehicle

I have been a owner of pulsar RS200; ODO- 24,650, idling RPM-1.5, never touched FI system for servicing, just gone a round trip of about 400kms, by start of the ride filled tank, while returning while ...
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2answers
940 views

Mitsubishi Galant over heating with battery light and brake light on

I have a 2000 Mitsubishi Galant ES 2.4 cylinder engine. I parked my car after leaving the laundry mart and I got in to pick up my children and it would crank but won't start. So we changed the spark ...
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1answer
33 views

VW EOS ESC Error message

My VW 2015 EOS works great but since my last tire rotation, the ESC Stabilization Control Error appears while drive on dry roads at a constant speed. Engine slows, cannot accelerate. Must pull off ...
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1answer
44 views

Gas consumption when engine braking [motorcycle]

I am trying to figure out how much gas an engine uses when engine braking in a four-stroke engine (motorcycle). I understand that the gas consumption should be close to zero because the wheels are ...
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2answers
115 views

Issue with car rev'ing and brake!

I have 04 VW Polo, it's a bit a complicated for me to explain as I have limited knowledge of car terminology, and this issue happens frequently but not constantly. So, issue number 1 is while I may ...
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2answers
116 views

B18A1 Acura Integra Motor

I have a B18A1 motor. Is it possible for me to use the oem crankshaft for a turbo build? I also am wondering if anyone would be able to give me insight about using aftermarket pistons with the stock ...
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1answer
70 views

Does always driving in a low RPM harm the engine?

I am not a very sporty driver because high speeds frighten me. My car is a 2013 BMW F30 with N13 engine. I always drive slowly whether i am in a city or on a highway. I never ever go past 90 kph (56 ...
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0answers
15 views

1995 accord ex - hesitation during acceleration

I have a 1995 Honda accord Ex with the VTEC engine. when I press the gas pedal for a fast acceleration, at around 3000 to 5000 rpms the rpms will drop or begin to fluctuate around and then stabilize. ...
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1answer
52 views

Misfire at idle

I have a 97 Montero sport with 2.5k miles on the engine(it’s remanufactured). I’ve been chasing a p0305 for 2 years but can’t find the problem. I know I have a possible vacuum leak since the fuel ...
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3answers
31k views

Should I run my generator dry in preparation for storage?

I think this is on-topic after reading the FAQ, so I figured I'd go ahead and ask. I gave my gas generator its scheduled 3-month interval "workout" last night, and after letting it run for about 30 ...
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1answer
58 views

What should I do with my car after driving into water? [duplicate]

So my car drove into water, and it stopped working at some point. I then stopped my car, and me and a couple other people fished out the car. We were able to start and drive the car after and I ...
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1answer
134 views

Audi 2.0T Tapping Noise When Accelerating (Up to 3000 RPM only)

Car: 2013 Audi A4 2.0 4-Cyl Turbocharged AWD Mileage: 71,457 miles Video Clip: https://youtu.be/HX1wXk84wq8 The car is exhibiting a tapping noise when the engine is under load at lower RPMs. Test ...
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2answers
48 views

Effect of same engine but with slightly less capacity (cc) and hp

There's a vehicle whose engine is 1332cc which produces 94 hp in its home country. It was recently launched in my country with the same engine, but they downsized it to 1299cc (91 hp) for tax benefits....
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1answer
62 views

Do monster Truck Engines have an ECU/ECM

so I was designing a body for the CRD Monstertruck mod for BeamNG.Drive, (so I could design the body within the game before making it IRL) and when considering the engine (I'm coding the JBeam file ...
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1answer
98 views

2000 Daewoo Musso 2.9 TDI Engine shaking heavily in idle, getting better in higher RPMs

I bought my first project car dirt cheap it's a Daewoo (Ssangyong) Musso Diesel SUV which has one of the most reliable engines, the Mercedes OM602 This car is starting fine but the Engine is shaking ...
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1answer
1k views

Birds nesting in my truck grill near radiator

Bird are nesting in the front grill of my 2018 GMC Sierra. I am afraid it will cause a fire and this area is very hard to get to. Any ideas on how can i stop them from building nests in my grill ?
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3answers
3k views

Corolla idle fluctuation and noise

This is a 2009 1.8 Corolla with 150k km on the 2ZR-FE engine. At idle RPM's cycle up and down by one or two hundred RPM and there is a gasping or rotational noise from the right hand (belt) side of ...
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1answer
235 views

2013 Mazda 3 Engine not turning off while pushing the start/stop button

My 2013 Mazda 3 does not turn off the engine while pressing the start/stop button. If I continuously press the start/stop button for three or four times then engine stops and goes to the acc mode. ...
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1answer
75 views

Rough engine sound at 30-60 mph on a 2012 Toyota Camry

I have a 2012 Camry, 4 cyl, whose engine has a random rough sound on a light acceleration, between 30 and 60 mph. It's very brief, but seems to be getting worse and more frequent. It doesn't happen ...
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2answers
65 views

I have a 2000 GMC Sierra 5.3L that won't start/run as of today

My truck has died on me 3 times today. When I put it in park and turn it off the doors don't unlock themselves. Then when I tried to start it up again nothing! No sounds, no lights. Then when I do get ...
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1answer
166 views

Black soot on the exhaust pipe of subaru forester sg5 turbo

I am experiensing some black soot from the exhaust pipe of my forester sg5 turbo. This started after changing to a bigger turbo(td04hl). What could this mean and the advisable repair? Kindly
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0answers
16 views

Seat Leon 1P (2012) sometimes shuts down the engine after starting

Summary For about a year I have been observing the following behavior. After starting the engine, sometimes the RPM would dip very slowly until the engine begins to stumble and then shuts down. So far ...
4
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1answer
113 views

ECM replacement - starter runs during reprogramming?

(mid-90's Buick) Someone I know had an ECM injector drive output go bad. He got a replacement ECM online, but had to take it to a shop (not a dealer) to get it 'initialized' (If that's the right word....
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1answer
48 views

2004 Chevy Tahoe burning oil & coolant, smoking, and turning oil to jelly

I have a 2004 Chevy Tahoe with about 180k miles. Its really taken care of with regular maintenance. Recently after driving 30min on the highway, the next time I turn it on white smoke comes out the ...
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1answer
1k views

Speed sensor location on 03 jetta 2.0 engine

So i was driving yesterday n the car shut off. I lost acceleration first then the car shut off leaving all my lights on. I pulled over turned it off then tried to turn it back on n i got nothing. No ...
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1answer
1k views

Bike stops Suddenly after 2 to 3 Km

I have a Royal Enfield 350 Classic,15000km and 4 years old. These days I am facing a problem ,it stops after a few kms. I was on highway and it stopped so I visited a mechanic he said there is water ...
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1answer
170 views

Smoke from engine, cranks but wont start

I came off the motorway to a slip road, slowing down to 20mph and about to turn when I saw smoke coming from my engine bay. Then all the lights on my dashboard (not just warning but all of them) ...
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1answer
53 views

2014 HARLEY ULTRA EXHAUST UPGRADES

I'm helping a buddy. He has a 2014 Harley Ultra Classic with a high output 103. It has 23k miles, Vance & Hines Short Slashes, Vance & Hines Heavy Sucker air filter, and Vance & Hines Fuel ...
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2answers
85 views

What things cannot be tested(except by elimination) when trying to diagnose a sluggish engine?

As far as I'm aware there are certain things that cannot really be diagnosed if you have a sluggish engine and so you can only find them by elimination. As an example if you test a car due to ...
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1answer
602 views

What will upgrading the Camshaft do to my BBC 454?

I have been told that upgrading the Camshaft in my GM 454 will increase performance. What will this do exactly and what will the engine actually gain? 10069286 block casting 454cu '90-'91 MY, Mark IV ...
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1answer
117 views

Is this internal engine component cracked?

I was inspecting my engine (1.6L N15 Pulsar) yesterday and I noticed some moisture on the rocker cover coming from the oil fill cap. I unscrewed it and it looked like it was allowing some fluid out. I'...
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1answer
58 views

Metallic Engine Sound Coming from 2005 Nissan Altima

My car recently started making a sound coming from the engine. It's hard to describe, but it's something like a mix of metallic and squeaking. I thought it would be better if I recorded it: Listen to ...
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17answers
65k views

What happens if I change the oil when the engine is cold?

I have always changed the oil in my vehicles with the engine hot, because the manuals always say to let the engine reach normal operating temperature first. Oil change instructions all over the ...
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1answer
134 views

2004 Monte Carlo SS supercharged white smoke coming from engine

2004 Monte Carlo SS supercharged with 145k miles: I just replaced the upper intake manifold and supercharger gaskets...plus the oil pan and transmission oil pan and dipstick gaskets. I'm still ...
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3answers
254 views

Determining my Kia Forte Trim Level

I'm trying to figure out my trim level on my kia forte from 2011. The sticker on the inside of the drivers door jamb says "trim: WK". What trim level is this and what engine do I have? Is there anyway ...
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1answer
486 views

Ford Fiesta MK6 deep moan with release of accelerator

While driving my Fiesta on the motorway I noticed that at around 3000rpm/70mph that if I release my foot off of the accelerator completely (I just let the current momentum propel me forward) the ...
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1answer
4k views

Engine temperature gauge stays on cold

I have a 2011 Hyundai equus and all of a sudden my temperature gauge stays on cold I checked my coolant level and it was low in which I added the correct amount and drove for awhile but temp gauge is ...

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