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

2
votes
1answer
13 views

Proper spark plug gap

What is the gap for a 98 ranger 3.0? The stickers under hood are gone and there is no book in glove box. I just bought this truck and have nothing to go on.
0
votes
0answers
27 views

White smoke coming from under my hood

I have white smoke coming from under the hood of my car. I was wondering what it is, and how long i can drive with this happening. So far its been 2 weeks this has been going on. I. 2 weeks I'll be ...
1
vote
1answer
9 views

2000 mercedes e320

My car keeps shutting down after 10 Mins driving 20 to 30 min of sit time and were on the road again. Temp gauge reads hot but engines not hot nor is the coolant.the fan works if I hookup to a battery ...
0
votes
0answers
6 views

Motor vehicle peguet 206 oil mix with water tank

The problem is coming in my car oil mix with water and car temperature does not go up then 100. Otherwise engine starting and all of tings are working best very smooth on road and also when I speed up ...
0
votes
0answers
17 views

Knocking noise in hood of car

2005 chevy classic v4. The car first made a noise that sounded like a fishing line being reeled in after replacing serpintine belt and tension pully the car started making a knocking noise?
0
votes
1answer
11 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 ...
0
votes
1answer
35 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 ...
2
votes
2answers
20 views

1996 Volvo 960 won't spark or inject

After a customer had destroyed his engine(wrong fuel), the engine was replaced by my colleague with a 2nd hand one from a running car. However, it won't inject or spark when starting. It concerns a ...
0
votes
0answers
40 views

Car dies while driving through water

I was driving home the night of yesterday with my Honda Accord after a down pour unknown to me that the road had been flooded and because some other cars were driving through I had to follow. ...
0
votes
1answer
27 views

High rpm on neutral but flatting the gas pedal on D doesn't increase the rpm

I am making this question as an update to my previous question . I am not sure if updating that question will draw attention to it or keep it buried in the sea of questions here, if it gets updated ...
0
votes
0answers
15 views

2005 Honda Civic LX

Why does my Honda take two cranks to start but there's no check engine light or nothing I have the starter and alternator and battery tested and they're fine?
2
votes
3answers
35 views

Engine Running Rough and Shaky (with video) (2001 Toyota Camry)

The problem My 2001 Toyota Camry CE (4-cylinder gasoline engine) has run rough and shaky the last several weeks and several hundred miles. The car has about 226,000 miles. I bought the car new and ...
2
votes
1answer
31 views

Crankshaft position system variation not learned p0315

08 Chevy Malibu starts and stalls scanner shows crankshaft position system variation not learned how can I fix this. This engine was running strong not 48 hours ago put in different car now it's ...
2
votes
2answers
36 views

Motorcycle engine mounting bolts grade

I need to decide upon a pair of bolts that will be used on my motorcycle to mount a pair of frame sliders. The already present frame sliders are installed with (supposingly???) 10.9 grade M10x1....
1
vote
1answer
42 views

2006 Buick Rendezvous 3.5 will not rev over 3500 rpm in park or driving with pedal to the metal. Any ideas?

3.5 will not rev over 3500 rpm. PO 449 is the only code stored. It will not rev over 3500 cold or hot. After driving 10-15 minutes seems like the transmission is searching for a gear, just ...
0
votes
1answer
23 views

‘98 saab 900 dies during the summer heat

My 1998 saab 900 turbo has been dying while driving. The issue only happens when it is very hot outside. After running the engine for 10-15 minutes my cars tachometer will jump up and down ...
1
vote
0answers
39 views

What could cause worse-than-normal acceleration?

I have a manual transmission (2008 Honda Fit Sport) and recently got my car serviced, including oil change and "fuel system cleaning", at a shop I have never used before. After the service, my car ...
1
vote
1answer
27 views

Engine Rattle at Constant Acceleration

2005 Subaru Legacy GT 5MT Having an issue where my Subaru feels like I'm driving over a constant rumble strip. Thought it may have been a spark plug issue but changed those out and still not fixed. ...
1
vote
0answers
22 views

Kia Cerato 2009 won’t start - dash lights won’t work

Yesterday I disconnected the battery and reconnected it again (correctly) so I could change a head light as it was very hard to reach. Once the battery was reconnected my car wouldn’t start and my ...
0
votes
0answers
21 views

Engine vibration/shaking

I have a 2005 Volkswagen Gol G3, I changed the air filter and a few days later it started to shake a lot when idleling but it runs pretty smooth as soon as you accelerate or cruise; when the car is ...
1
vote
1answer
22 views

Clutch Pulses at low RPMs - Problem? [duplicate]

I drive a used 2009 Toyota Matrix S (80k miles), and this is my first manual transmission car so forgive me if I'm describing something obvious and pedestrian here. Recently, I've noticed some odd ...
0
votes
1answer
49 views

How manufacturers recommend a certain oil viscosity

I recently bought a 220 cc motorcycle.Manufacturer recommends 20W50 engine oil.I have seen owners manual of 250 cc motorcycle by another manufacturer where recommended oil viscosity is 10W30.I want to ...
0
votes
1answer
16 views

I can't turn my key on, in the start key.can you help pls [closed]

I can't turn my key on, in the start key.can you help pls any idea?
0
votes
0answers
15 views

Why does my scooter slow down and dies repeated in first 10 minutes, but runs fine after engine runs warms? [duplicate]

I bought my brand new 50cc GY6 engine chinese scooter two months ago. I have started to get problems. On the first engine start of the day, it starts up perfectly on the first try but when I throttle, ...
1
vote
1answer
41 views

Can you estimate engine condition based on how quickly the oil turns black?

I checked the oil level on my car that had oil changed 2000 km ago (the car doesn't seem to consume any oil, so I don't check it every 1000 km). The oil color was in an intermediate state between new ...
25
votes
4answers
9k views

Is it really impossible to fix a seized engine?

I had an engine seizure that happened while I was driving the car: it ran low on oil and suddenly the engine stopped working (with a bit of smoke). Now after being towed, I have left the car (and ...
0
votes
1answer
59 views

Car suddenly stops accelerating and overheat indicator comes on

Vehicle: Skoda Fabia TDI 1.2L diesel While driving back home, the car suddenly stopped accelerating and the RPM was stuck at 1000, even when I applied more gas. Immediately after, the overheat ...
0
votes
1answer
46 views

Why do car manufacturers use different brands of spark plugs simultaneously?

When I changed the spark plugs on my 08' 4Runner, I noticed it had alternating Denso and NGK sparks plugs in the engine. The manual has them both listed: Denso (K20HR-U11) and NGK (LFR6C-11). What is ...
1
vote
2answers
51 views

Cleaning pistons / cylinders with cylinder block still in car

I'm planning to do a "deep clean" on my engine and part of that is to clean carbon / gunk from the piston faces and cylinder. I was planning to use WD40 and a slightly abrasive cloth like a green pan ...
1
vote
1answer
28 views

conrod bearing segments

I'm building a 1.9 td PSA motor, type DHX and ordering new segments I found the mark on all the segments on the same side, I've checked again and again and all indications are that the item ...
3
votes
3answers
119 views

Car starting hack works - but is it an issue with car battery, starter or alternator?

I recently noticed that my car had the issue starting without giving it a boost. It has original battery and has 155k on it. Over the course of 2 weeks I realized below two things which helps car ...
1
vote
0answers
40 views

Help me diagnose my lack of power & lean condition

I have a 2000 Mercedes CLK 320 with the M112 V6 engine at 125 000 kms. The car has rough unsteady idle and is lacking a lot of its power - to illustrate, 0-100 km/h takes exactly 10 seconds, while ...
1
vote
1answer
48 views

Broken ignition coil: spark plug's fault?

Two days ago my Opel Corsa D LPG's engine started to misfire, and by means of an OBD interface I found out it was cylinder 1. First thing I thought about were the spark plugs, as I haven't changed ...
0
votes
0answers
37 views

Can reversing into another vehicle damage your engine or other vital components?

If you are reversing your car at a rate of about 5km/hr and you hit something in one of the following scenarios A) a stationary vehicle Or B) a vehicle moving into your rear at a speed of at least ...
13
votes
3answers
4k views

What does O/D mean on a dashboard & a button under the transmission button?

My car has an O/D button under the transmission button. When I press it, it turns O/D off. When O/D is off, the revs go up more than when O/D is on. What does O/D mean and what does it do to the ...
1
vote
1answer
89 views

Why would Acura still use SOHC?

I noticed that Acura still uses SOHC engine on some of their cars. Is there a specific reason why? I've personally talked to an Acura technician about this question but he just said it allows better ...
1
vote
0answers
16 views

2008 Chevy Cobalts engine light came on, rpms fluctuates/ stalls, and rpm needle shows zero

My car is a 2008 Chevy Cobalt (standard). I was driving my car the other day and I felt a slight chug, so instinctively I just shifts down a gear and went on my way. The next day it did the same thing,...
1
vote
1answer
20 views

Engine transporter

My VW TDI transporters engine dies after I remove my foot from the accelerator panel. And won’t start again when hot. It is also blowing excessive white smoke. All started after refuelling.
1
vote
1answer
13 views

Toyota prado 2009 Diesel auto

When I sit at the lights in gear I am getting a louder than normal vibration sound. If I go into neutral I loose it and goes back to normal diesel sound.
2
votes
0answers
67 views

Engine loses power at certain rpm once it gets hot

I have a Pulsar 220 which starts good but after riding few kms, engine starts getting too hot. Even the high temp and oil change sign starts blinking. There is no issue with engine oil. As I get it ...
1
vote
0answers
33 views

MITSUBISHI ASX 2012, Diesel - Engine performance around 2000 rpm

My ASX 2012 car is running strange when it's around 2k rpm. It doesn't mather what gear the car is in. Below and above it seems totaly fine. I lack the propper English word for it, but the car gets "...
1
vote
1answer
49 views

What do all these codes mean? 125331324255

My 1994 Jeep Grand Cherokee limited was running great, as always, but then a few day ago it didn't want to idle some times and without a shudder or misfire etc. the RPM would drop down to zero and die....
0
votes
0answers
34 views

Chevy concerned about engine

What damage could have been caused? My car had been driven while loosing oil. Became noisy. I was unaware anything wrong. I stopped and checked the dip stick, no oil was on it, also smelled hot. Oil ...
0
votes
0answers
20 views

Help please !!!! Having trouble after sparks plugs and coils change

Well I had a bad week and I they had to change my spark plugs and and coils, also the fuel filter. After they did that it worked great for that day but the next day it was not accelerating as I was ...
0
votes
2answers
23 views

Mitsubishi Mirage 1994 shudders with acceleration

My Mirage (1994, 4G13 (carb), ~95,000km) shudders whenever I accelerate. This is largely a recent problem. This generally occurs after ~2min of driving and persists for ~20 minutes. Depressing the ...
3
votes
2answers
65 views

No acceleration until depressing gas pedal some more, OBD shows P0170

My Mercedes CLK230 (1997, 4 cylinder) has the following issue: when I depress the accelerator pedal, (almost) nothing happens until a certain angle (not too much but clearly noticeable), and after I ...
3
votes
0answers
20 views

Car wont start 1994 Oldsmobile CutlussCiera

I have a 1994 Oldsmobile Cutlass Ciera 3100. A person before me put in fuel pump and filter, timing chain, crank sensor,cam sensor, New starter. Car still don't start. It cranks maybe 3 times and ...
2
votes
1answer
86 views

VW Polo 6n 1.4 Engine and gearbox problem

I have a Volkswagen Polo 6N Petrol 1.4 8v 60cv from 1997 with 168 000KM. It's my only car and I can't afford to get a new one. It's been looked after and has been in the family since new. I have ...
2
votes
0answers
33 views

Car keeps breaking fuel injectors?

Ok so i'm having quiet a strange issues with one of my cars (08 X5 E70 4.8L V8) that may be worth discussing. It seems to keep "blowing" through injectors on only one bank. Suddenly i noticed CEL and ...
0
votes
0answers
11 views

94 Cherokee Laredo 5.2 Magnum

I'm coding out 25 which means idle air control motor. The engine wants to start but doesn't stay running could that affect the engine to run???