Questions tagged [engine]

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

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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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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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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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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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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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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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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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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 ...
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OS MAX FS 70 Exhaust Thread Size

I was trying to figure out what kind of thread size the OS MAX FS 70 engine uses for its exhaust connector port. I am talking about the following (green circle) I could not find this in the manual, ...
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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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Is it harmful to drive downhill in low-gear with high RPM? [duplicate]

I went to a mountain range the other day with my Seat Toledo from 2001. Going downhill, with 12% inclination, I downshifted to 2nd gear to avoid braking all the way. The car still picks up speed, ...
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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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Problem with P0159 code Chrysler Pacifica

Helo I have replaced the catalytic converter with a non original one because i didn't find an original part in Iraq it was stolen ... previously I had p0430 ... but now I have p0159 which refers to ...
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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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Vauxhall Astra intermittent engine problem

I have a 2015 Vauxhall Astra (petrol) with a strange intermittent problem, hoping someone might have experienced something similar. The car lost power and stalled after driving perfectly normally. It ...
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Is it bad to rev a diesel truck right after starting it?

There's an Isuzu pickup at my work and the drivers almost always rev it after starting it up, it's really hot here too so it has no issues turning over, compared to colder environments I guess. ...
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IAME KA100 go-kart engine will not 'cough': Can you recommend what to check next?

I recently purchased an IAME KA100 engine and am trying to get it to 'cough' (let alone start), and would like suggestions for what to check next. Here is what I've checked so far: Compression is 125 ...
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There's no replacement for displacement

I grew up with the saying "There's no replacement for displacement" when referring to engine size, performance, etc. Does that saying still hold true today? It's getting harder and harder to ...
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Chevrolet Matiz doesn't start first time in day

I have a 2008 Chevrolet Matiz car, 3-cylinder 0.8L engine with the following symptoms: Start hard the first start of the day (after 10-12 hours) then start each time from the first, if the interval ...
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Mitsubishi mirage Code P1590 A/T torque reduction req. comm

The check engine light on my mitsubishi mirage is on and upon scanning the codes, I am getting the following codes: U0131 EPS CAN timeout U0101 T/M CAN timeout U0121 ABS/ASC CAN timeout P1590 A/T ...
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Is damage caused to an engine by a Spark Plug an " external influence"? [closed]

My knowledge of engines is poor. How do I continue the fight for a warranty claim? Merc C180 Year Model: 2019 Mileage: 42 000km’s Diagnosis: • Vehicle misfiring usually indicates a fuel / ...
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Blue Smoke coming from exhaust of scooter after a month of engine rebuild

Recently i had an oil change and a month ago had my engine half rebuild.But now,Blue smoke is coming from exhaust.I suspected oil leaking inside engine but due to worn out piston but since its ...
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Subaru Forester - petrol coming out unlit in bursts out exhaust. Ideas on what could cause it?

I've got a Subaru Forester '02 2.5L that I push kind of hard off road on New Zealand beaches. I had a near dead battery recently so bought a new one but on replacing it I must have wiped the ECU ...
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Why my 1985 Cadillac Deville crank but can't start

Last autumn my cady run perfectly. Then I didn't drive it much during the winter (Nov - Apr), maybe only total less than 50 kms. In may it started have difficulty to start, but when I used spray fluid,...
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2014 Ford Mustang 3.7L V6 Bank 2 Lean on startup until engine warms up

I've been having an issue lately that has not always been the case. For reference, my car has an aftermarket air intake (AirRaid) and BBK Long-Tube headers w/ O2 sensor extensions, a catted X-pipe, ...
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Choice of lubricant for model „diesel“ fuel

I bought some old small combustion engine for model cars/boats/airplanes. They are not operated using nitro fuel and flow plugs but simply by the (adjustable) compression of the fuel which is why they ...
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ATF in engine oops

I accidentally put 6 qts of ATF in my diesel engine. Ran for just a few minutes until I realized what I did. Drained all ATF and replaced with engine oil. What else should I do?
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engine replacement wont start

can anyone help please changed engine on a 59 reg focus 1.8tdci could not find a good one anywhere near so ive got an 08 tdci as replacement same engine code kkda noticed while swapping the 08 has a ...
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81 views

Is this behavior normal in a long uphill road at 102 degrees Fahrenheit?

Please read this carefully before posting comments or answers. This is NOT an overheating issue. It is just about cooling system behavior under specific conditions. My car cooling system has two fans ...
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When I try starting my Honda it’s hestitant then it starts

I have a 2004 Honda Accord and when I go too start it, it doesn’t Just start right up like it stutters then starts. I took it too Autozone and had them check battery starter and alternator. They are ...
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54 views

Broken welded nut inside frame for motor mount

I was trying to replace the passenger side torque mount on my 98 civic and both nuts that are welded inside the frame snapped off. Now the bolts and nuts just spin. I’ve read similar posts from people ...
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Idle speed on Ford KN Laser 1999 Auto switches between 1500 and 900 RPM

Ever since I've had my 99 Ford KN Laser Auto, I've been plagued with idling issues. When I first got it, it was barely idling at about 500 RPM. I've replaced the plugs, TPS and crank sensor after it ...
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Cat 7 HEUI pump failure incidence rate

Not exactly a car engine, but I am wondering if anyone has seen any statistics or guidance on Cat 7 HEUI pump failures? The pump compresses engine oil which is then delivered to the diesel injectors ...
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1answer
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Peugeot 3008 2014 1.6 turbo - engine fault at 5000rpm

At about 5000 rpm up a hill I get an engine fault message with codes P1336 and P1339. Car gets shaky. Restarting the car and the shakiness is gone. Clearing the codes and car is back to normal, runs ...
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Jeep 4.0 inline 6 engine won't turn over by hand, need help

Here is the backstory. Wife had her 2004 Jeep Wrangler running and driving fine and the transmission went out about 2 years ago, it was a 42rle. The Jeep sat at her parents ranch outside with no ...
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2009 Jeep Liberty Engine

My 2009 Jeep Liberty’s engine seized and I’m looking for a new motor. Found two for the same price, however one is for a 2008 liberty and the other is for a 2009 liberty. Is there any differences ...
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94 Toyota Camry. Car has good starter, battery and alternator yet it won't start. The starter just clicks once but won't turn over the engine

I have a 94 Toyota Camry, that used to run well until last week when the negative battery cable snapped from the terminal and caused the vehicle to lose power and ultimately die. I reconnected the ...
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Why does my car engine run extremely quiet after a few minutes of downhill driving?

I don't want to say my car (Peugeot 406 1.8 16V) is noisy (don't get me wrong) but in normal driving, engine sound can be heard inside the cabin during acceleration. However, when I drive in downhill ...
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Mercedes C180 Kompressor ODB 2 P0170 & P171 errors

Recently been having problems with my 2004 Mercedes C180 Kompressor. It was driving well, sometimes at stoplights, it would rev inconsistently but would only be only a few 100 rev/min. This wasn't a ...
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ECU after engine swap

I have a 2005 wrx, previous owner engine swapped it to the STI short block (EJ257) so now it’s a 2.5 instead of a 2.0, i’m trying to buy an accessport for it, but i don’t know which one to get because ...
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Toyota RAV4 - 4cyl 2008 - moderately faint clunking noise when going over bumps plus shut off recently while driving but able to turn on right after

This RAV4 makes a faint clunking noise sometimes when driving over bumps - especially seems like the right front wheel and for sure more clunking when driving over bumps with just the right-side tires....
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Engine valve cover replacement due to oil leak followed by new, seemingly unrelated, symptoms

A couple of days ago my Chevy Cruze 2013, ~85k miles, had its engine valve cover replaced and 2 cam adjuster magnets resealed, according to the paperwork, due to an oil leak at the top of the engine. ...
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44 views

Does engine oil compensate below-threshold Catalytic Converter performance?

I have a Toyota Yaris 1.3 VVT-i with 2SZ-FE engine. The car has 100K of mileage (I recently bought it with no service history). Most importantly, its check-engine light is on for "catalytic ...
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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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Can I use 0w 30 instead of 0w 20 engine oil in Honda wrv deisel model of 2019?

I am not able to find the specific engine oil online or offline as per the recommendation of Honda. Can I use any alternative oils?
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Engine dies when brake pedal is pressed

1995 Chevy Cheyenne C2500 dies when brake pedal is pressed. Run fine when started. I changed the brake booster and the EGR valve and problem still there!!!!
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2009 Subaru Legacy Poor acceleration with no DTC codes

2009 Subaru Legacy EJ253 Non Turbo 4EAT transmission The car seems to be in LimpHomeMode although I don't know how to verify that. Very poor acceleration with some hesitation when in drive. The ...
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479 views

Which school of thought is right for breaking in engines - keep RPM below 3000 for the first 3000 miles, or rev up to redline?

My friend has overhauled his engine recently and he sought my advice about the most efficient way of breaking in his new engine (Peugeot 405 1.8L Petrol). It is usually said that you should keep RPM ...
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44 views

yellow oil pressure warning light gone off without doing nothing but then I ran 1000km and found low oil level

some weeks ago I saw a yellow oil pressure warning symbol and I move the dipstick up and down then it gone off. As I am not a Car guy I didn't check the oil level because I don't know how much it ...
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59 views

What happens to the oil inside the oil pan when you park your car in 40% slope? Does the oil come into contact with oil pan gasket materials? Harmful? [closed]

I want to know at what percentage of slope, engine oil touches oil pan gasket material? Is it harmful for the gasket?

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