General internal combustion engine questions.

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1k views

Ford Taurus common oil leak area?

On my last oil change, the technician noted some oil around top and side of the engine block and said there is a small leak. The only way to find where it is coming from is doing the whole dye test, ...
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3answers
91 views

Why are drive by wire systems so unresponsive?

Purchased a honda Fit seeing their reasonable price and good engine power. However I have a lag between me pushing the pedal and the engine responding. I constantly have to downshift to get any power ...
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3answers
121 views

do all quattros have shafts connecting front and rear axles

I have recently purchased a 2009 Audi A5 Quattro, and in looking underneath the car there does seem to be a place for a shaft to connect the front axle to the rear axle (which you would expect) but ...
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1answer
88 views

Which engine part is this?

I own a speedboat that is powered by a 5 liter V8 Mercruiser with 200bhp. Yesterday when trying it out for the 1st time this season, 2 things happened: 1 - the boat was always trying to turn left ...
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3answers
126 views

What kind of gasoline additives will help maintain the engine efficiency/life?

Aside from the traditional maintenance of oil changes, and keeping fluid levels correct - what else will help prolong the engine's life? I recall a few years back gasoline additives were the thing to ...
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2answers
394 views

Why does a car's engine vibrate at start, despite the circular geometry of its component's dynamics

If a well balanced system starts moving, it should not vibrate ! Or if it does, it should vibrate even more at high speeds ! But a car clearly vibrates hard during the startup, to then stabilize.
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2answers
1k views

Motorcycle popping on acceleration

I have a 1975 Honda XL250 that I bought earlier this summer. Up until recently its been running great. It was leaking a little gas, but nothing too serious. When it started to get worse, I opened up ...
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1answer
178 views

2001 Audi A4 corroded part… What is it?

I noticed under my hood that a piece looks corroded through. My car hasn't given any warnings or check engine lights and no liquid is coming through. No one I ask knows what it is. Please help! ...
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3answers
323 views

Dying car, at random intervals

So my 1996 Jaguar XJR is just stopping at random. It happens when the car is doing low RPM, like when I am coming/stading at a stop light. Any ideas on where to start to troubleshoot this problem? ...
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2answers
108 views

Seized engine on 13 yo Infiniti, out to pasture for 1 yr. Donate for scrap or worth a revisit?

We live in the temperate Northern California foothills, and lo these many months ago, my wife took my father's 2001 Infinity up the Reno mountain pass without seeing (or checking) the dangerously low ...
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1answer
317 views

Maxima (2002) MAF Sensor Failures

I have a 2002 Nissan Maxima that I've owned since 2003. I'm now on my sixth Mass Air Flow (MAF) sensor. What seems to wipe them out is hard acceleration (3/4 throttle - not so extreme as to induce ...
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1answer
44 views

Is there a place where I can buy new stock GM Engines?

I am looking into a new project, and one idea that was tossed around is to replace the motor on the truck with a FlexFuel model. I looked around and see gmperformanceparts website, but they don't have ...
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3answers
244 views

How can I do a cheap but safe and good tuning which will improve the cars performance?

I have a Skoda Octavia 5 1.6 MPI and I want to make a good cheap safe tuning that will increase the cars performance above 100 hp it already has. How can I do that?
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2answers
1k views

Is short drive trip bad for your engine?

My wife's car often uses to drive to a nearby grocery store, which is too close to our house (about 2 miles). Some one told me that I should change the engine oil more often because engine is working ...
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1answer
453 views

Add 2 stroke oil to a 4 stroke petrol engine during burn-in period

I'm planning to get a new petrol (gasoline) car soon. A friend of mine, who worked as a motorbike mechanic when he was young, told me he puts a small quantity (125 ml / 4 oz) of 2 stroke oil in the ...
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2answers
1k views

BMW 330D 2001 E46 Turbo Charger not working as expected after changing

I have a problem with my car. My car: BMW 330D, 135kw, 2001 year, E46. A week ago my turbo charger got broken when I was driving. There was a lot of white smoke going out of exhaust and there was ...
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2answers
279 views

How is the clanging sound produced in the engine?

Imagine riding your motor bike from plain ground to an uphill path, initially it climbs the road in top gear. Then gradually the bike begins to slow down and the sound from the 100cc petrol engine ...
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2answers
80 views

My battery was too low, and now my check engine light is on

I've noticed it in the last year (2013) that my 2008 Jetta with the original OEM battery would be taking a little longer to start than before, sometimes (but very rarely) not starting in the amount of ...
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2answers
95 views

Going more than recommended Speed in Break-in Period

I have a new Yamaha motorbike. Seller told me not to ride speed more than 50 Kmph for first 1000KM but I rode it 60 for 10 - 15 minutes due to some reason. How does it affect to my Motorbike ?.
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2answers
63 views

Where can I buy the 2005 Mazda 3s 2.3L oxygen sensor plug?

I bought an oxygen sensor with the wrong plug. I wonder were could I buy a plug like the one on my car in order to connect the oxygen sensor properly? This is an image of the plug on my car. Does ...
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3answers
508 views

Looking for suggestions about what to try and fix on my tecumseh snow blower engine that stalls after you stop putting load on it

I have a troy bilt snow blower with a tecumseh engine and it starts great and runs great. Most of the time, anyway. It will scoop up snow and throw it just fine, and then for no obvious reason it ...
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2answers
3k views

2006 Chevy Cobalt front end (strut mount?) noise

I have a 2006 Chevy Cobalt and since I bought the thing, the front suspension makes this horrible clunking noise every time I go over a bump. I don't know how to describe the noise other than it only ...
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1answer
1k views

Engine stalls in hot weather

I have this strange problem with my Nissan Sentra 2002(80K miles). When it is about 90 deg F outside and driven more than about 10 miles the engine seems to miss badly(like for e.g. when you run out ...
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2answers
666 views

What is the potential damage of a temporarily partially submerged front end?

I have a 2005 Nissan Sentra (base model, FWD, 1.8L 4-cyl engine) and I took some bad advice from the Maps app on my iPhone and I ended up driving on a very, very bad road. At one point, I drove into a ...
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2answers
1k views

2000 Nissan Maxima Service engine light

The dealer diagnosed it and says it got tripped by catalytic converter and rear oxygen sensor. The total estimate was around $2000. The blue book value on his car is around that amount. Is there a way ...
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1answer
45 views

Should I run my generator dry in preparation for storage?

I think this is on-topic after reading the FAQ, so I figured I'd go ahead and ask. I gave my gas generator its scheduled 3-month interval "workout" last night, and after letting it run for about 30 ...
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2answers
2k views

Car shakes when in gear at red light

I bought a '96 Toyota Camry about a month ago. When I first turn the car on and the engine is cold, I can have the car stopped (in gear) and it will not shake. The idle RPMs will be at 1000. After ...
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2answers
811 views

Host of small performance problems in 2006 Hyundai Elantra

I bought a used 2006 Hyundai Elantra (Automatic) back in early 2011. At the time, I was needed to have a car quick, and it seemed like a good deal, but the longer that I've owned it, the more problems ...
3
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1answer
579 views

2000 VW Golf TDi (Mk. 4) grey smoke from exhaust before engine has warmed up

I have had my Golf for 8 years. It’s had good maintenance and a the record is kept by my dad. It’s just passed its MOT (Ministry of Transportation) test, and the mechanic mentioned that the tappets ...
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1answer
1k views

How do I find a vacuum leak? I'd highly prefer not to use a carb cleaner spray

The car is a 1998 Oldsmobile Intrigue with 3.8L V6 engine (3800 Series). I've been doing my research and due diligence, but please understand I'm very inexperienced with automobiles. I went to ...
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1answer
666 views

OHV vs. OHC: which is faster in speed, horse power?

What are the main differences in OHC and OHV engine designs, and which is faster or more powerful? Also, which is more reliable?
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1answer
283 views

2000 Grand AM GT engine and electric cut out randomly while driving

My Grand Am is cutting off randomly while driving. I have not been able to purposely reproduce the problem, which makes diagnosis difficult. I am looking for any advice in diagnostics, or parts to ...
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2answers
302 views

Advice needed - My car has burn mark on hood and seems to be leaking oil

I have a 4 year old, well loved Honda civic with only about 25K. It has been serviced nearly every 6 months. I just took it for a service a few weeks ago and today I noticed that it seemed to be ...
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3answers
528 views

Is it feasible to Turbo a NA engine while maintaining 87 AKI octane fuel use?

I initially thought there should be a way to bolt on a small aftermarket turbo onto my naturally-aspirated Honda D17A2 (9.9:1 compression ratio) engine in my EM2 Civic EX without having to switch from ...
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1answer
947 views

Car Stalls When Coming to a Stop

Make: Chevy Model: Cavalier (4 cyl.) Automatic Year: 1993 Miles: 230K Normally my Cavalier drives just fine without problems. However, if I drive for 45+ minutes then it will sputter and stall out ...
3
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1answer
142 views

What is a gasket head kit?

I am looking at buying a used car, many listed have had "gasket head kit" installed? What is a gasket head kit? Should i be wary about buying a car with one installed? Will the "gasket head kit" ...
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2answers
90 views

What will happen if there is something else also with petrol in car

Today someone broke my car fuel outer case and taken out fuel. I came home by driving but then i have now one doubt in my mind. What if he put something else in tank like water, sand, etc in there. ...
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2answers
291 views

2013 Yamaha XT250 engine clicking/ticking noise

I just bought my xt250 as my first bike after getting my permit about a month ago. It's 2013. At 100 miles I dropped the oil and changed the filter. As a small woman I've also installed lower links to ...
3
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1answer
161 views

How often should spark plug wires be replaced?

I last replaced them with the plugs about 4 years/60-70k miles ago. I bought platinum plugs I if I remember correctly, so I still got some life on those. The car (2001 Buick Regal) is still in good ...
3
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2answers
310 views

High-pitched squealing coming from engine

I Have a Datsun Safari 1983 2,8L petrol. Recently I was driving off road with it and the next morning the fan belt was making this squealing noise. So I adjust it and all was well. 300km later a new ...
3
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1answer
103 views

Honda Accord 2004 V6 Australian, Can stopped in the middle of the road

Recently, when I was driving and had to stop at a set of light the car all of a sudden stopped. All the lights on the spedometer came up, but the A/C, radio all was working fine. I turned it off and ...
3
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1answer
597 views

1994 Ford Escort won't start

I have a 1994 Ford Escort that was bought used 2 years ago. When we bought it, it would barely run, and we had to replace the engine head. As a result of that and other repairs, it has been losing ...
3
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1answer
2k views

Car starts fine after sitting for half a day but has trouble immediately after being driven

I have a ten-year-old car that I don't use too often (it mostly sits in the garage). Last month, I took it for a ride and the engine overheated. I took it to the service station, and the guys there ...
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1answer
1k views

How to attach PCV breather hose on MkIII Golf?

The old "breather hose" on my Mk3 VW Golf became cracked and fell off. I bought a replacement tube, which connects to part of the PCV apparatus on top of the engine via a hose clamp, but it is not ...
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2answers
86 views

Mini Cooper P1638 code

I have a 2007 Mini Cooper. It keeps throwing code P1638 on my code reader on these really really cold mornings, and the engine seems to search for idle, reving betwween 500RPM and 1400RPM. The car ...
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2answers
61 views

OVERHEATING 07 grand prix

My car has been overheating bad I took it to auto zone and hooked it up to the check engine thing and they said it was getting to 207 withing 10 secounds. It get hot fast and my heat doesnt work ...
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1answer
168 views

Low compression and will not ignite after broken camshaft pin and replaced head and gasket

My 95 Geo Metro Lsi 1.0L had a blown head gasket. I replaced the gasket and drove the car for approximately 120 miles before it started spitting and sputtering. Then it died just before I got home. I ...
3
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1answer
88 views

Check engine light between 1300-1800 RPM

I have a 1995 gmc Sierra hd with the 6.5L turbo Diesel engine in it. I just recently bought it and when ever I hold around 1300-1800 rpm the check engine light comes on, when I take my foot off the ...
3
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1answer
388 views

Engine Code P1312 on 2001 Saab 9-3

I have replaced to brand new spark plugs. After some research, it seems that the problem might be the direct ignition cassette. Could there be other possibilities? Thanks
3
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1answer
275 views

Rough noise while accelerating

My car is a 2002 Nissan Altima with 106,873 miles. After 95K miles, my car has been giving a rough noise from the engine. After shifting into second gear, it's smooth until I hit the gas pedal hard. ...