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

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2
votes
2answers
71 views

Engine doesn't want to stop

I have a '59 Nash Met. with a straight 4. It runs great, but when I turn it off the engine continues to run for up to a minute, sometimes violently shaking as it comes to a halt. Any idea what causes ...
0
votes
1answer
68 views

weather causing power loss

Why would my engine lose power when the weather temperature gets warmer. While driving the vehicle will not have as much power when it gets warm or hot.
4
votes
1answer
187 views

Overheating & boiling in the overflow tank

I have had the gases checked in my overflow tank (which boils short distances) and also over heats. Two different mechanics tested the gases and said it's not the head gasket but yet it still boils ...
1
vote
1answer
248 views

2006 Volvo s40 started smoking suddenly

Had my car serviced two weeks ago fuel consumption and great and been driving smoothly. Yesterday driving from work it suddenly started smoking terribly. Stop at the gas station checked the oil and it ...
4
votes
1answer
632 views

2015 STI White smoke

My 2015 Subaru WRX Sti is emitting white smoke from the exhaust. The smoke smells like burning electronics. When I pull over and open up the hood, I also see white smoke in the engine bay. The smoke ...
7
votes
4answers
14k views

How reliable is a second-hand Subaru 2.5 RS 04-05?

Basically, I've been a Subaru enthusiast for a few years but never been able to purchase one because I'm still a student. However, this summer I will be able to. The issue is that I need a reliable ...
4
votes
2answers
2k views

Dealership Installed “Oversized” Oil Drain Plug As Solution

In this question, we discuss stripped oil pan threads. I learned it is a result of user error - over tightening and cross threading, by the dealership I consistently go to. Many people have come ...
8
votes
2answers
3k views

Low power, bad gas mileage, smelly exhaust after engine work

My 92 Civic has had low power (need to use at least one gear lower than usual to get the same power) and has been getting bad gas mileage (15-25mpg vs 32-42 mpg usual) since I replaced the head ...
1
vote
0answers
27 views

over loading, missfiring [closed]

My car is missing particularly whenever ur going up hill or in any case where u have to give it more gas. I've replaced plugs, caps, Cool Pak's. Ignition module, tps sensor, mass air flow sensor and ...
1
vote
0answers
85 views

Engine smooth after techron then rough again [closed]

I used techron additive. After a gas tankful, the engine is smooth and powerful as new. However after another tankful of normal gas the engine is rough and sluggish again. Why is this happening? ...
2
votes
1answer
280 views

E46 Check engine light on at high altitude

In my E46 BMW, the yellow check engine light always turns on when visiting Lake Tahoe (altitude ranging from 6000-8000 feet). It usually turns off if I've been there for a couple days. After many ...
9
votes
2answers
6k views

Lugging the Engine (Manual Transmission)

So...lugging the engine obviously isn't something that is good. But why? For example when you feather a clutch to get the car moving, it lugs for a quick moment when you hit the catch point (When ...
2
votes
4answers
4k views

Is starting idle RPM always lower in colder temperatures?

I've noticed that my 2008 Jetta 2.5L 5W40 generally starts up with an idle RPM of at most 1.2K RPM around the freezing temperature (say when the temp sensor reads 33°F), or even at just about 1K ...
4
votes
1answer
186 views

E46 engine chirps when idling in the morning

The title pretty much sums it up. If I haven't driven the car in a few days, the BMW E46 engine makes a faint chirp for about 30 seconds when I start up the engine. It's more like a rapid chirp, as ...
4
votes
0answers
258 views

Ford Fiesta Mk6 Diesel Engine Fault

Upon acceleration the following lights illuminate once the engine reaches 3000-4000 RPM: A message; "Engine Fault" appears on the dash screen. Once this happens, the engine will no longer rev ...
2
votes
1answer
225 views

Honda Engine Seize & overheats

I have Honda Trigger CB and it's a good motor vehicle but when I cross speed at 100km/hr. It heats a lot and often get seize in mid way. It then need to cool off to let me ride it again. Also it gives ...
3
votes
0answers
190 views

Renault/Dacia Logan 2014+ engine temperature indicator?

the Renault/Dacia Logan 2014 and above have indicators like this: As you can see, the dial at the right has the total mileage and the fuel indicator only. I'm wondering if there is an indicator for ...
4
votes
1answer
202 views

Coolant leaking into engine

I had my truck in for service - 2006 Sierra Denali - due to an oil leak. They replaced the "engine oil cooler lines to pan gasket". Within a couple of days had a major issue - coolant had gotten into ...
0
votes
1answer
911 views

Won't pickup speed

Got1991 caddy press pedal to floor won't pickup speed engine dies out what's the problem could it be my fuel injectors fuel pump will not accelerate no leaks transmission good no smoke 1991 ...
2
votes
1answer
193 views

Dodge Ram SRT-10 Problem

My Dad owns a 2005 Ram SRT-10 Quad Cab. The problem is when my dad trys to go over 100 MPH it doesn't let him. And I know the Ram SRT-10 can go a lot faster than that. In fact the Ram SRT-10 can reach ...
14
votes
4answers
35k views

Why does a Turbocharger only produce boost when the engine is under load

As per the Title. Why does a turbocharged car only produce significant boost whilst the engine is under load. Is is something to do with how much exhaust is being produced or is there some kind of ...
3
votes
1answer
849 views

Why does my engine hesitate when I first start?

My question may be related to this other one, but its answer is inadequate for me to be able to diagnose my problem and know what to do to fix it. When I start my car in the morning (or sometimes ...
4
votes
2answers
8k views

Engine never warms up (actually: it cools down) at highway speeds

I have a 1997 Caravan (base model) and normally on my drive to work and my highway drives in rush-hour, the engine warms up just fine. I took a road trip for work, about an hour and fifteen minutes ...
1
vote
0answers
172 views

Bmw 320 d 2011 n47t [closed]

I've got my timing chain fixed before it was too late . I had a great experience with my local dealer and replaced it free of charge , my question is , will it ever get this bad again? I got a 2 year ...
2
votes
1answer
215 views

Sluggish Acceleration

I have a 2003 Kia Spectra. Just replaced the radiator. The car does not overheat when running, no fluid leaking. However, car is very sluggish when accelerating. Rpm goes up but car jerks into ...
4
votes
1answer
1k views

2005 Honda Accord cold start idle is low

I'm not a car expert so I don't know if I'm being alarmist or not but this problem just started happening the past week and seems to be getting worse fast. Hopefully the terms I'm using is helpful in ...
5
votes
3answers
381 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 ...
1
vote
0answers
178 views

2011 Kia Optima Repair [closed]

While driving my 2011 Kia Optima LX with 58,000 miles, the engine shut off and I coasted to a stop. Attempting to restart resulted in one weak crank then nothing. There is fuel and electricity. The ...
3
votes
2answers
109 views

Engine stalling/not wanting to go

Hello so I have a 1988 chevy 1500 with a 350 in it. I drove it for about 10 minutes the other day no problem would spin the tires over easy also. The next day I drove it to my grandma's no problem. I ...
2
votes
1answer
945 views

Transmission Fluid Pump - 2008 Crown Victoria Police Interceptor P71 CVPI

Hi, I have a 2008 Ford Crown Victoria Police Interceptor. My car runs in forward and reverse for a short time (30 seconds to 2 minutes) and produces a loud whine noise. I believe this to be the ...
17
votes
7answers
90k views

Is idling bad for your engine?

If I sit in my car for 30-40 minutes with the AC and the car idling, does that "hurt" the engine, or does it simply waste gas and pollute the air? Would it be better if I turned off the car? A ...
11
votes
1answer
2k views

Why does diesel engine need a warm-up before the start-up?

When starting up, diesel engine needs approximately 5s before turning the key for ignition. Why is this neccessary and what can be damaged if you don't do that?
2
votes
1answer
125 views

1988 chevy k1500 350

I have a chevy that has a loss of power and stalling. About a week ago I drove it and it would spin the tires over, but the next day it wouldn't. it could be bad gas the truck was in the shop for ...
2
votes
1answer
694 views

Normal spark advance for 96 LT1 engine? STFT also varies bank 1 vs bank 2. What does it mean?

I used my HP Tuners as a scan tool on my 96 LT1 in an Impala SS. The "Advance" as read by the tool sits at -12 deg at idle, then goes down to -35 deg if I rev it (no load) to about 2k RPM. I'm ...
2
votes
1answer
965 views

wont start only rapid clicking 2004 chrysler concorde lxi 3.5L

I have a 2004 Chrysler Concorde LXi 3.5. Couple months ago I was driving pulled over shut car off and went into store..when I can out and tried to start it it just rapid clicks . I let it sit for 20 ...
1
vote
1answer
29 views

Will anti-Freeze leave behind residue?

I bought a used 93 3.1 GM long block engine with 19,633 miles in 2014 from a yard that I found on the internet. The engine was pulled in 1996 and stored by the yard. I did a title search/check to ...
3
votes
1answer
1k views

Engine Heat Indicator effects

I'm curious about the head indicator on my car. After driving more than 5 minutes it levels out pretty much half way between the 60 and 120 degree mark. My first question is: is the mid point at 90 ...
1
vote
1answer
137 views

My 1999 Mazda 626 LX just shut down.

Engine turns over but wont start. While trying to start it, it gave a backfire, I changed the spark plugs plus oil hoping hat would fix it but no such luck. Any suggestions as to what could cause or ...
3
votes
1answer
407 views

Engine sputtering, not accelerating. Left for 20 mins and is now fine?

The car is a Mk1 Golf (1993, 1.8lt, mechanical injection). I was driving up a medium incline and suddenly my car starting sputtering and I lost acceleration. I pulled over and started the engine ...
2
votes
1answer
59 views

first “non-replaceable” parts to break

I'm currently modifying my '08 Subaru WRX with everything from suspension(Sways/Strut/Springs...) to Engine(Turbo/TMIC/Injectors...) and much much more...However I would like to get ahead of the game ...
7
votes
3answers
81k views

Car temperature displaying below Cold or just above Cold always?

I've noticed on my 94 Integra (bought used about 2 weeks ago) that the thermostat is often below cold, sometimes above cold but never up to the center mark. Today I was boiling inside my car as it ...
1
vote
0answers
72 views

Have to shake the car to get it started [closed]

Renault Megane 1.6 2008 model. I just changed spark plugs and fuel filter thinking that was the issue, but it carries on. The problem is when the car is stagnant and off and when I try starting the ...
1
vote
0answers
48 views

Cold Start Problem Chrysler LHS 2001 [closed]

Last night was the coldest night we had for awhile and this morning when I started my car it initially started up and every thing seemed normal. I put it in reverse, backed out, and then when I put it ...
0
votes
1answer
688 views

Honda City 2009 : It would not start Start

My honda city 2009 AT would not start. The gauges would light up. The power windows,radio and AC worked. I was able to turn the key but when I try to start it, it will just give a sound like it is ...
2
votes
3answers
3k views

Possible causes of this Honda Civic K20 engine whine/hiss?

I own a 2008 Euro Civic Type-R which has almost the same engine as the US Civic Si (K20Z3 vs K20Z4). Since a bit of time I have a really annoying high pitched noise coming from the engine. It's ...
2
votes
1answer
38 views

What uncommon tools are needed for a GMC Savanna 2500 engine replacement?

I have done simple repairs, such as the water pump, alternator, etc on vehicles. Having gone beyond simple maintenance (oil, brakes, spark plugs, etc) I have a collection of very common mechanics ...
1
vote
0answers
24 views

Slow Accleration And Moving [closed]

So my car isn't accelerating as it should be the rpms go high but the acceleration is slow and I have a check engine for bank2* catalytic converter could that be the problem.
1
vote
0answers
131 views

Is 115HP engine enough to drive on steep hills? [closed]

I am comparing the VW Jetta S with SE. The S has a 2L engine with 115HP whereas the SE has a HP of 170 (Ref.). I live in seattle area which has steep hills. I would like to know if 115HP would be ...
3
votes
1answer
84 views

Can you make a tapped hole deeper?

I tapped a hole in my motor (to hold the valve cover) but I don't think the pre-existing hole was deep enough. Can you make a tapped hole deeper? As the drill bit for the pilot hole should fit right ...
6
votes
1answer
155 views

How are fuel injectors controlled?

I took the fuel injectors off of a wrecked Volvo 850 GLT 1996. I was testing them to see if they still worked by simply supplying voltage to them, and they do. I noticed that when I increase or ...