General internal combustion engine questions.

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5answers
599 views

Why didn't tuning box or remap work on my mondeo st tdci

I brought a tuning box a few months ago. When I fitted it, it didn't work so I sent it back. They tested it and it was working fine, so I tried it again, but it wouldn't make my car any quicker. So I ...
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1answer
178 views

Mean Piston Speed in Turbocharged Vs. Naturally Aspirated Engines

Does anyone know why the mean piston speed might be lower in the average turbo gasoline engine compared to the average naturally aspirated engine? Scratching my head to figure this out but no luck so ...
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2answers
1k views

Lower quality oil vs high quality oil [closed]

tl;dr Which is best? Buying high-quality, longer-lasting, but more expensive oils and changing oil less frequently or buying lower-quality oil but changing more frequently? As I'm trying to find my ...
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1answer
129 views

Is a 1994 Jeep Wrangler engine reliable

Its gone 150000 KM (93,205 miles). Would its engine be reliable to last another couple of years? Should I be on the lookout for any noises the engine makes that signal trouble? Thanks
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1answer
387 views

2002 Chevy Malibu spark plugs

Three of the spark plugs in my 2002 Chevy Malibu are easy to reach and change, which I did successfully. The other three spark plugs are difficult to reach, difficult to see, and are in a position ...
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1answer
181 views

Why there is no injection on 1st and 4th cylinders in Fiat Punto?

I have Fiat Punto 2 1.2 with LPG (sequence, stag 4). There is problem with the injection on the 1st and 4th cylinders. Sometimes it works and sometimes it doesn't. 2nd and 3rd work without problems. ...
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1answer
1k views

Buzzing Sound coming from Nissan Altima engine after accelerating

I have a really sharp buzzing sound coming from my 2006 Nissan Altima engine. The sound starts and stays around as soon as press the accelerator. Doesn't go away until I turn the car off. I know ...
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1answer
775 views

How to use BG Fuel Injection System Cleaner?

Recently, after a periodic servicing visit for my car (which has a multi point fuel injection system), the mechanic handed me BG Fuel Injection System Cleaner Part No. 210 and asked me to put it in ...
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1answer
42 views

Vauxhall Repair Center vs Local Mechanic

I'm in a point that I have to decide between: Vauxhall Service Center - that I have never used before Local mechanic - which I have done MOT and service checks before and sounds reasonably ...
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2answers
269 views

Toyota manual transmission problem

I took my 2003 Toyota Matrix in to the dealership for service. It has 105,000 miles - the oxygen sensor needed replacing, but no other issues found. Now I feel as though I need to shift to a higher ...
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1answer
732 views

Honda Odyssey 2003 makes squeaking noises on cold start

Something squeaks when I start the engine after the car was sitting in garage for the night. Squeaking goes away after 2-3 minutes. Here is a video Car has following replaced a month ago: harmonic ...
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1answer
944 views

Misfire in cylinder 4

About 8 months ago my engine light came on, and after pulling the code it was a misfire in cylinder 4. My vehicle is a 2004 Mazda MPV, and only has 60K miles on it. Everyone I talked to was skeptical ...
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1answer
231 views

Adjusting the idle setting on a 2005 Cavalier

The air conditioning unit on my 2005 Cavalier only engages when the engine is idling above a certain level (observationally, it appears to be between 1000 and 1200 rpm). During the summer months, ...
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1answer
204 views

Toyota Camry 2000: Odd Coughing when starts

Recently, I notice that my car begins coughing couple minutes after it starts. It have happened since Jan, 2012. First, I thought it might be due to Winter since it is cold weather. However, it ...
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1answer
67 views

v-tech now vs then

Back around 2003-2006 I looked into V-Tech which was using a variable cam lobe with a more agressive profile that engaged when "needed". Today, we have motors with a continuously variable valve timing ...
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1answer
155 views

How can I know what engine is compatible with a 2001 Mazda 626

I am selecting an engine to go into this vehicle and I want to know what my options are. What I know is that the engine that was a 2.5L, The transmission is standard. Wikipedia says the 2.5L engine ...
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1answer
2k views

Timing Belt Replacement Schedule on 2004 KIA

Can anyone tell me at what recommended mileage should the timing belt be replaced on a 2004 KIA 4 clylinder engine. And if you know, is this a job for a pro or can a do it yourself person do it? ...
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1answer
712 views

Coil Pack Location

Where are the coilpacks located in a 1998 Buick LeSabre? Images would be most appreciated. Robert
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0answers
16 views

over loading, missfiring

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 ...
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0answers
28 views

Engine smooth after techron then rough again

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? ...
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0answers
15 views

2001 GMC Jimmy wont start?

Hi I have a 2001 GMC Jimmy it was running fine, then parked it. it starting acting funny, sometimes would take a couple times to start, so checked my oil dipstick, it read a little high and smelt ...
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1answer
71 views

my car acts like its going to stall at a stop

my car drives fine but when i come to a stop light or any stop it acts like it will stall but never does. did some easy things like oil change. no check engine light is on but it seems to keep ...
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0answers
36 views

Ticking/clicking when accelerating 1997 Dodge Caravan

My caravan began ticking when accelerating yesterday. It ticks fairly loudly when accelerating and much softer and slower when idle, or slowing down. Ticks slow and steady when idle or in park. Does ...
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0answers
32 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 ...
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0answers
43 views

Bmw 320 d 2011 n47t

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 ...
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0answers
30 views

2011 Kia Optima Repair

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 ...
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0answers
40 views

Chirping sound from intake manifold, car stalling out?

Over the past 2 weeks or so my car has been making a chirping sound near the intake manifold and the accelerator. The chirping sound comes and go, and about a week ago I had an issue where my car ...
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0answers
58 views

Truck won't crank; no sound from starter relays

I have a 1997 Expedition, which badly needed a tune up: the motor was shaking. I changed the plugs, which stopped the shaking; two days later the truck won't start. The battery is hot and the lights ...
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0answers
34 views

Engine stalling out, chirping sound, 2003 ford taurus SE

Over the last week I've had a chirping sound coming from somewhere near my engine bay. It has been very inconsistent (At first would increase when accelerating, then increase when coming to stop, then ...
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0answers
23 views

Have to shake the car to get it started

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 ...
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0answers
31 views

Cold Start Problem Chrysler LHS 2001

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 ...
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0answers
28 views

what engine oil does a 1992 subaru liberty auto stationwagon need? Answers in “w” units please

what engine oil does a 1992 subaru liberty auto stationwagon need? Answers in "w" units please i need to add oil and I cannot find a good reference as to what to use - the oil at the garages are 20 ...
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0answers
11 views

Slow Accleration And Moving

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.
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0answers
48 views

Is 115HP engine enough to drive on steep hills?

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 ...
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0answers
46 views

ford figo doesnt start after recharging the battery

I have a ford figo and I got the battery recharged and got it fixed .now the car wont start. Ther is a symbol which has pic of a car n a lock on it and that keeps blinking wenever I try to start and ...
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1answer
87 views

Saab 93 Automatic died when waiting for traffic light and won't start again

I just bought a 2006 Saab 93 Aero 2.0T automatic in October, 72000 miles. Everything seems perfect. But 2 weeks ago, the engine died while I was waiting for red light in the town centre, I just braked ...
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0answers
26 views

Problem with engine starting up and dying right away

I bought Honda Civic 2013 LX which had an issue with the original key. I drove with valet key and drove it about 60 miles. After that it's dead. I thought it's an original key issue which I have had ...
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0answers
135 views

2003 mazda 6 won't move or go into gear

I was driving this vehicle on the highway going home. All of a sudden I noticed the oil light coming on, battery light came on too and I could not go past 60mph. So I suddenly pulled over and as soon ...
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1answer
39 views

Which engine does a 2005 Kymco People 50 have?

I am looking at purchasing an aftermarket 70cc big bore kit for a Kymco People 50 2-stroke scooter. The issue is that I don't know what engine this has. It seems that the 4-stroke "4T" model uses a ...
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0answers
22 views

Does “slogging” an engine (open throttle at very low RPM) increase mechanical wear? [duplicate]

When I was taught to drive, I was told that "slogging" the engine - open throttle at low RPM, e.g. 1000 RPM - was bad for it. Particularly when driving up a hill as that means you'll be stuck at that ...
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0answers
44 views

Chevrolet Corsa doesn't accelerate until I restart the engine

It works fine for the first 10 km or so, then it'll suddenly stop accelerating, as if I weren't even pressing the pedal, and I have to restart the machine and it'd work again, for at least other ...
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0answers
104 views

Honda Accord 2003 V6 - seems that there's a slight lag in acceleration than before - what could be the cause?

I've recently noticed that there's a slight lag from when I depress the gas pedal to feeling the car accelerate. What could be the cause? I the mornings when I start the car I hear a ...
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0answers
29 views

New car should run slow for better mileage - Myth or reality? [duplicate]

I just bought a Ford Ecosport and it has been only hours old. The dealer told me to drive the car at as slow speed as possible for the first 3 months (not more than 80 kmph) although my car can easily ...
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1answer
75 views

Overflow tank's lid has been opened for a long time

I've just found that overflow tank's lid has been opened by itself. I dont know how long maybe four months since I bought it. Coolant level is now above the full mark. Does it cause any damage to the ...
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0answers
82 views

How can I rev my engine in drive while holding the brake and not stall? [duplicate]

Possible Duplicate: Why doesn't the engine stall out when you come to a stop with an automatic transmission? Occasionally I press both pedals simultaneously. I can feel my car trying to ...
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1answer
948 views

Where to start with 'Motor for Intake Manifold Flap (V157): Open or Short to Ground'

I recently hooked my 2005 Audi A3 to VCDS after the engine management light came on and got the reading: Motor for Intake Manifold Flap (V157): Open or Short to Ground I have seen various images ...
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2answers
138 views

Why doesn't the engine coolant dry up while the engine is running?

Why can't coolant dry inside the engine during engine operation?
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1answer
108 views

I want to replace my renault clio engine F8Q by another one of toyota

I want to change the engine of my RENAULT CLIO II 1.9D. This engine was broken when the stone hit the bottom of the engine (carter) then the engine stopped to work because there was any oil. So I ...
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2answers
41 views

Oil in radiator? 1991 Ford Telstar

The radiator water is a browny color and very viscous. Oil levels have dropped beneath minimum on dip stick after adding 1.5 liters of oil.
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1answer
195 views

How to know if a '97 Ford Escort Engine is Federal Emissions or California Emissions

I did a search on the VIN and the engine type is listed as: 2.0L I4 SPI Can anyone tell if it is California or Federal Emissions? From what I've been told they have completely different intake ...