Questions tagged [engine]

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

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Coolant level fluctuates too much

I have a problem with the coolant level from my car (Renault 1.5 dCI engine). It fluctuates too much. I left home with the coolant level at the minimum mark. After approximately 10 minutes I stopped ...
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Is 1600€ reasonable for fixing the gear box inside a motorcycle motor? [closed]

So I was riding normally in 6th gear when a huge sound came from the motor. Basically I couldn't go into any other gear apart from the 6th. This is my repair shop's quote. The motorcycle is ktm Duke ...
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How to go on about deducing which would have more pull by comparing the max torque and max bhp of a car [closed]

So I had this question a couple of days back and I still am not sure if the answer I came up with is right. I was comparing the specs of 2 cars lets say A and B. Car A: max torque: 113 Nm @ 3300 rpm ...
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Knocking under load on first gear

I have this issue.. I already asked on FordOwnersClub, but I feel like here I might have a better chance to sort it out. I bought a Ford Focus mk3 2011 with 1.6 ecoboost 134kW engine with 90k km. My ...
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Oil change and no oil question

We took our Kia Optima Hybrid (2014) to a shop for an oil change. We've had the car nearly three years, no engine issues at all. Normally, my husband and his dad handle the oil changes, but we were ...
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New Kia Stonic, vibrations and clutch noises

I have a new Kia Stonic 2020 1.0L T-GDi ISG , got it on July and 8500km on it It already had an issue with miscalibrated hill assist sensor (already fixed) so I wonder if it has other issues ... what ...
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Auto acceleration Kawasaki rouser 135LS

After starting my motor it’s auto acceleration for a while and then it came to back to normal after That only I can ride Is that any problem?
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Finding TDC with a screwdriver.. what if screwdriver gets stuck?

I was performing a leak down test on a chevy vortec 4.3L V6. In order to find TDC on the #3 cylinder, I stuck a screwdriver down the spark plug hole and slowly turned the crank pulley with a wrench. ...
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How does a OBD II misfire detection monitor know “exactly” which cylinder is misfiring?

I do know that magnetic pick-up coils are used to detect crankshaft position and these sensors are used to tell which cylinder is misfiring. These magnetic pick-coils do not produce a smooth & ...
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2004 nissan sentra white smoke from engine then radiator busts

I just got 2004 nissan sentra had been setting up for about year now. I was told at the time only thing that could be wrong with it was the cam shaft position sensor, and possibly the catalytic ...
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How to inspect a brand new motorcycle before buying from showroom?

When you decide to buy a brand new bike from an official Suzuki, Kawasaki or Yamaha showroom, how can you inspect to be sure of that the bike is brand new with zero mileage? What if the bike has been ...
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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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Oil leak on engine top

So I have a 07 Subaru Impreza wagon 2.5. It’s seems to have oil on top of engine behind power steering pump. It’s definitely oil and not tranny fluid. I checked oil pressure switch and it’s not coming ...
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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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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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Is this Purge valve ticking sound normal? Youtube video

It is 2001 Corolla 1.8 engine. I'm still in the process of diagnosing an intermittent P0171 code. I posted a video in other post and user Carguy was very helpful and he mentioned that this ticking ...
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1answer
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VW Golf 5 FSI Jerks When Driving

Please help. I have recently serviced my VW Golf 5 with air cleaner,oil filter,fuel filter and plugs but the car still jerks most times when driving. I had it diagonised and gave me error codes P1403 ...
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1answer
38 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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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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2010 Dodge Charger Base Model won't go over 25mph+ (P0370)

Having some troubles with my vehicle. It will not go over 25+mph and it is very choppy. Bought a code reader and it comes back with P0370. 2010 Dodge Charger base model
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I am looking for cylinder head bolt tightening torque specs for a Benz OM651

I am currently working on a Benz Vito bus engine and cannot find the engine tightening torques. I have search all over the web for this information with no luck. Thanks in advanced.
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1answer
91 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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59 views

Revs go up when I depress clutch pedal

As I was driving my 2001 Mazda Tribute today I was pulling up to a red light and I depressed the clutch pedal as I came to a stop. Once the clutch pedal was depressed the revs suddenly shot up to ...
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1answer
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Should I re-build my engine?

12 months ago, I bought a 1999 Mitsubishi Delica with a 4m40 2.8TD engine (diesel). The vehicle itself has done 120,000 miles and runs very well. There is a very slight oil leak somewhere. There is ...
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Unknown pink car fluid running low

When I opened the car hood, I see a pink fluid running low, I am not quite sure what the liquid is, and would I be able to add it by myself? What is this pink fluid? And would I be able to add it by ...
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1answer
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What is the black box between my air filter housing and throttle body?

I recently purchased a 2001 Dodge Dakota 4.7L SOHC. I want to start working on my own vehicles more. But I have very little experience and this question reflects that. Please correct me if I get ...
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27 views

Engine Oil Change Duration regarding with respect to Engine Oil Top Up

We all know that engine oil are of 3 types namely 1. Mineral Oil 2. Semi-Synthetic Oil 3. Synthetic Oil. Right. And their drain intervals 2000-2500 kms, 3000-4000 kms, After 6000 kms correspondingly. ...
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Why Long Term Fuel Trims Remains in Negative?

Dear Experts here im attaching log of 1SZ-FE, 1.0L engine for your kind consideration, please advice why my LTFT remains in -ive though MAF, Intake Air Temp sensor, ECT sensor and O2 sensor is working ...
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1answer
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Why my long fuel trim readings are higher than short trim ones?

My understanding of long trim vs short one is that the short trim readings will adjust the long trim after awhile right? For example my short trim readings are in the -5 to positive 7% max while the ...
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2013 Polo Vivo 1.6 overheating warning light

Hi all I'm hoping someone can help me with my car that keeps giving me the engine overheating warning light. The car was in a minor accident from behind and ever since then the warning light comes on ...
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1answer
59 views

What is typically involved to repair a internal combustion engine that has a cylinder misfiring?

I have a vehicle with a cylinder misfiring (according to my OBD-II code reader). I have decided to have a mechanic repair it, as I have never performed a similar motor vehicle repair. Note that the ...
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26 views

Where can I find information about car PIDs?

i'm doing a research and i can't find voltage information from the car sensors, where do you find such information? finding the voltage range would help a lot.
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Motorcycle not starting unless I force it into first gear, but the battery itself is ok

I am having a weird issue with my Kawasaki Z650 2019, as per title. It used to start when I just pulled the clutch, now it needs be forced into first gear in order for it to start (while holding down ...
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My 99 F150 RWD has the P0171 code for its running lean any idea where to start

I got the tool to see why my engine light is on and is running lean. It returns a P0171 code. Any idea where to start diagnosing this?
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What engine are comparable to swap in a Kia Sorento 2.5l 2009

Oil pump has buggered my engine so looking for a replacement. Have been told Hyundai would swap, but clueless as what year model year ect. Any help would be appreciated. Thanks. My is 2009
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Engine/Clutch/Powertrain

When my engine is in neutral it reaches red line with no problem. It also has power in first and second gear. The problem happens when i am driving up a long incline, I will be in third or fourth gear ...
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Peugeot 206 2003 engine overheating STOP light

I bought my 2003 Peugeot 206 second hand from a private car dealer about 4 months ago and everything seemed ok, except for the exhaust pipe appearing to be tied with plastic zip locks. About a month ...
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2answers
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Is it a good idea to switch to 5W-40 engine oil from 5W-30 after hitting 120k miles?

I've got a 2011 European-spec VW Golf Mk6 Variant with a 2.0 TDI engine (CFHC engine code, Euro 5 emissions standard, equipped with a DPF; no AdBlue, no 4Motion) with almost 200.000 km (roughly 120k ...
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Engine issues raised tac

My wife has a 2015 Chevy Cruise and the tac is raised up a little bit from where it used to sit. Can it just need a tuneup?
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My car will start right up no sounds but will die after 30 mins of idling

It's a 1998 saab 900 s 2.3 L car was maintenanced regularly until 2019 which it sat until I bought it a couple months ago. The car is in great condition. When I start the car it turns on perfectly no ...
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58 views

Engine oil change interval

Very confusing topic I want to know exact drain interval of engine oil company says 6000 km and my mechanic says every 2000 . I use semi synthetic veedol take off 4t 10w30 api sn in my hero honda CBZ ...
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Flywheel timing

I pulled the flywheel off my 4 cylinder diesel without checking any timing marks, I've since learned I probably should have. It's in the shop being machined right now (for new clutch), but I'm ...
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Peugeot 207, Head gasket blown?

4 vti coolant has a brownish color and its oily to the touch. I did an oil change about two weeks ago, I'm wondering if it could be connected, the coolant level didn't really budge. I remember the ...
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Will a Mazda 6 GH 2009 2.5 L5 engine also fit a Mazda 6 2005?

I’m Wanting to know if an engine taken out of a Mazda 6 GH 2009 can be fitted/is compatible with a 2005 Mazda 6.? Are there any other makes/models of engine that would work for me or anything else I ...
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Which direction to turn crank for engine “normal” operation?

I'm working on a valve adjustment for a 1994 Suzuki Katana 600. I'm at the point where the signal generator cover is off and I'm ready to rotate the engine and make my measurements. However, the ...
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Is my engine missing a bolt?

Civic coupe vti 1999. Engine is b16a2. I notice there engine has a hole for what seems to be a stud. Couldn’t get my head positioned to see if it goes into the engine. I have taken a picture from ...
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125cc miss-fire new wiring loom

I’ve wired up a road legal pit bike, but it’s miss firing I kick it up it high revs then drops and then revs up again it seem it’s only doing 2 strokes as it should do 4 (so it’s lighting and sparking ...
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126 views

Low LTFT, high STFT

Disclaimer: I am a novice, so I possibly have made many errors during the process. I have a Mercedes-Benz A Class w168 (2001). It has a problem that sometimes, when running low RPMs it shuts down (...
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Thunderbird 350 stopped during acceleration

I have problem I put my Thunderbird 350 on stand and start it in neutral gear. It will remain on till I do not do anything. But when I do moderate acceleration it becomes off. I have already cleaned ...
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55 views

RPM dropping after refueling

It only happens when I refuel and then drive and everytime I come to a complete stop it drops RPM from a normal 1k to 500 and then goes back up to 1k I am not sure what’s wrong I use 93 premium ...

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