General internal combustion engine questions.
2
votes
2answers
494 views
Car runs uneven and jerky, but why? (Mazda 626)
I have a Mazda 626 (sedan) -97 and lately its been running uneven and jerky.
Have had in in for repairs and changed battery, oil+filter and spark plugs. Still had problems and tried to use a engine ...
2
votes
1answer
93 views
How much vacuum should be present in a 2 stroke intake manifold?
I have a 2 stroke Mercury 2.5 hp that has recently been dropped in the water. The motor used to run fine but now it won't start. I have dried the motor out and cleaned the carby, it's got plenty of ...
2
votes
1answer
846 views
Car starts really hard after I drive it a while then stop it and start it again
I have a quite old (10 yrs) car that I didn't used to often (it mostly sit in the garage). Last month I took it for a ride and the engine overheated. I took it to the service and the guys there fixed ...
2
votes
2answers
210 views
2003 Nissan 350 Z won't accelerate
We own a Nissan 350 Z and this morning it would not start. It would turn over but it wouldn't fire. After pulsing the gas a little bit it would start but then letting off the gas would cause it to ...
2
votes
1answer
71 views
How to identify parts needed for a repair?
Here's a general question: How do you identify, in advance, what parts will be necessary for a repair (including all the various fasteners, o-rings, etc), and order them? Certainly for simple ...
2
votes
0answers
36 views
Brake Specific Fuel Consumption of 2-stroke vs 4-stroke
How much fuel do various types of engines burn per power output? I'm especially interested in naturally aspirated piston engines, and comparing two-stroke to four-stroke.
The wikipedia article gives ...
2
votes
0answers
16 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 ...
2
votes
2answers
57 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 ...
2
votes
1answer
47 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 ...
2
votes
1answer
53 views
Holden Commodore not moving
I own a petrol powered Holden Commodore car 1998 model and it worked fine till last week. Suddenly it stopped moving freely.
When I press the accelerator up to 30% it makes noise but doesn't move. If ...
2
votes
1answer
278 views
Identifying American (Mercury) Mariner outboard
We have Mariner 9.9E outboard motor. Having hard time figuring out year and Yamaha equivalent (early Mariners were Yamahas in disguise). There is very little information on those, and it is hard to ...
1
vote
3answers
2k views
Best Ways to Pass Emissions?
I recently bought a 1989 Mercedes 300E that didn't run. Has a straight-six gas engine. Thanks to the miracle of Seafoam and a lot of luck, I was able to get fuel delivery happening again. I then ...
1
vote
4answers
203 views
How to prevent a car from boosting?
Considering a turbo car. The specific model is a Dodge Caliber SRT 2008, but I'd prefer a more generic answer.
How can one prevent the car from boosting while still having a car that can be driven ...
1
vote
4answers
3k views
Uneven idle when my '93 Honda Accord's engine is cold
When I start the engine cold in my '93 Honda Accord, it will rev up to 2000rpm and slowly go down to 800 rpm as the engine warms up (normal behavior), unless I do one of the following during this ...
1
vote
2answers
2k views
High-pitched squealing coming from engine
I've been told that a wet serpentine belt causes this. Is that true? If not, what else could it be? How can I fix this?
This is a 2004 Chevy Trailblazer (4.2L 6-cyl. engine). I hear the noise ...
1
vote
1answer
323 views
Why bikes with gears are preferred when there is gearless(or automatic gear) technology?
I know that lower gears have higher acceleration & low top speeds and higher gears have low acceleration & higher top speeds. But I would like to know why this gear system was designed first ...
1
vote
2answers
89 views
Are engines of the same model bike identical?
I am planning to buy a Yamaha Crux from the showroom. I'd like to know how to compare the engines in each of the available bikes of the same model. Will they differ in any way? One mechanic I know ...
1
vote
4answers
194 views
Car engine starts only for a fraction of a second and doesn't anymore?
Recharged the car battery, dashboard lights all on, starter motor producing the starting sound. Engine not starting. After seeing this question, I cleaned the solenoid brushes and at the first turn of ...
1
vote
2answers
175 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 ...
1
vote
1answer
61 views
how a car engine can get accustomed on some behavior?
A lot of people say that a car engine gets accustomed to the driver style and in particular to specific RPM gear changing and it will perform into those "learned" parameters.
I must mention that I am ...
1
vote
3answers
61 views
Should I do anything or check anything before starting my push mower after sitting all winter?
I didn't do anything to "winterize" it, but we only had a few stretches of really cold weather (less than 20F) and the majority of the winter was between 20F and 50F.
Should I do anything before ...
1
vote
2answers
152 views
Best cars for drifting [closed]
I'm trying to find list of best cars for drifting (cheep and with left wheel), Can anyone please suggest me some cars?
1
vote
2answers
1k views
What could cause an engine to make a chirping sound when it's first started up?
I've owned a Diesel Peugeot 307 for a year now but during the recent winter months I have noticed a strange sound in the engine when I started it up. As sounds aren't well described with words, I have ...
1
vote
1answer
106 views
Buick Timing Chain or Cam Problem
I have a 1995 Buick Century with a 3.1L v6 engine. I was driving along one day and the car simply quit. After having the car towed to the local shop, they explained it could be a timing chain or the ...
1
vote
2answers
460 views
What can I do to give my lawn mower more power?
I have a 21" Craftsman push lawn mower with a Briggs and Stratton 7 hp engine that is about 6 years old. I've got it cutting on the highest setting, and it still has issues cutting the grass without ...
1
vote
1answer
543 views
Smoke on start-up: valve gasket?
I have a 1990 Honda Accord. Sometimes, when starting up after sitting for a long time, I get blue smoke from the exhaust. This only lasts for a minute or two, after that, there's no smoke whatsoever. ...
1
vote
3answers
194 views
My 2001 Mitsubishi Airtrek revs at 2250rpm for 30 seconds before slowing. Will this speed harm the engine?
My 2001 Mitsubishi Airtrek 2wd with 86000k revs at 2250rpm for 30 seconds before slowing. Will this speed harm the engine?
1
vote
1answer
48 views
Strokes during compression test?
Just wondering what the general consensus out there for the amount of times the vehicle turns over during a compression test? I have heard anywhere from 5-8, and personally crank 7. What is the ...
1
vote
1answer
241 views
Crate motor for 2004 Dodge Neon
I'm looking for a good source to get a crate motor. I've tried some google searches but only found motors with high milage on them. I'm trying to decide on getting a crate or just rebuilidng existing ...
1
vote
1answer
528 views
Does a warped engine block affect compression test?
Check other questions, and did not see an answer.
Backstory: Driving around, discovered pin hole in radiator. Chose to drive home, since I was at my exit, and I lived right there. Blew head gasket.
...
1
vote
1answer
25 views
2003 Acura TLS running hotter than usual
I'm having some concerns with my car's engine temperature. Last weekend after being stopped at an intersection, the engine temperature went up higher than usual, about 75% of the way to the red line. ...
1
vote
2answers
119 views
Cleaning fuel injectors with a pressurized can?
I've been experiencing rough idling on my 2003 Mitsubishi Galant for the last year or so. It has 182,000 miles on it. About every 6 months now I use seafoam cleaner in the tank and that clears it up ...
1
vote
2answers
74 views
Possible to diagnose broken transmission without starting engine?
While I know a little about cars, the bulk of my knowledge came from when I was a kid bolting on stuff to my Honda and racing it illegally. (So, not much.)
My '96 Civic DX (5-speed) recently passed ...
1
vote
1answer
182 views
Cold engine works on three out of four cylinders
When my Honda CBR900’s engine is cold, it works only on three cylinders. When the engine begins to warm, all goes fine and all the cylinders begin to work. What can cause this?
1
vote
1answer
266 views
Engine and gearbox replacement for 1993 Mitsubishi Triton 4x4
I'm sure it's possible technically but I would like to know what the options are for engine replacements. The 4 cyl engine in my Ute is past its life expectancy. I'm interested to know if a new modern ...
1
vote
1answer
608 views
1998 Ford Contour P0171 P0174
I have a 1998 Ford Contour that has a check engine light. I checked the codes, and found:
P0171 System Too Lean (Bank 1)
P0174 System Too Lean (Bank 2)
P0401 Insufficient EGR Flow
P1131 Lack of ...
1
vote
1answer
651 views
How to fix Accord 1998 EX V6 OBD-II trouble code “P0108” — MAP (Manifold Absolute Pressure) Pressure Circuit High Input?
A few days ago, my Honda Accord 1998 V6 EX's "check engine" light came on. Since then, the engine experiences instability during idle. At stop lights, I can hear the engine having trouble stay running ...
1
vote
1answer
47 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. ...
1
vote
1answer
100 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 ...
1
vote
1answer
33 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 ...
1
vote
2answers
77 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 ...
1
vote
1answer
239 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 ...
1
vote
1answer
141 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 ...
1
vote
1answer
282 views
Maintenance on a 2005 Nissan Sentra 1.8S
My previous car was totalled and while shopping for used cars, I have found a 2005 Nissan Sentra 1.8S on sale for a very good price. It is being sold by the current owner, and it has been going to the ...
1
vote
1answer
69 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, ...
1
vote
1answer
95 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 ...
1
vote
1answer
64 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 ...
1
vote
1answer
98 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 ...
1
vote
1answer
1k 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? ...
1
vote
1answer
453 views
Coil Pack Location
Where are the coilpacks located in a 1998 Buick LeSabre? Images would be most appreciated.
Robert
