General internal combustion engine questions.

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1answer
28 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 ...
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1answer
232 views

Hyundai Accent 2006 Hard Start Problems When Cold

I am the owner of Hyundai Accent with a diesel engine. After very cold nights, the mornings are a nightmare. The engine starts fine but a light for check up is on most of time on board, and after gear ...
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2answers
970 views

What are the reasons to mix oil & coolant?

Frontal impact vehicle is there fan motor touches the oil cooler,oil cooler slight impact is there, in coolant tank oil and coolant mixed, what are the reasons to mix the coolant and oil in this ...
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1answer
63 views

Issue w/ weedeater engine - doesn't stay on

So, here's the problem. I'll prime my weedeater, put full choke on, pull the cord a few times. Now, BEFORE, the engine never started with full choke. I would need to move it to half choke, pull the ...
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2answers
146 views

Squeak on agressive clutching - Renault Megane

I am looking at buying a Renault Megane 2005 1.4 petrol. The car looks in very good condition but it has a subtle squeak if I release the clutch pedal too suddenly ... this is either on gearing up or ...
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1answer
326 views

High RPM and engine heating on 2001 Subaru Legacy

I have a 2001 Subaru Legacy L station wagon with 143k miles. I do not know when the timing belt was done, or when the spark plugs were replaces last. I only know that the brakes, tires, and one of the ...
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1answer
465 views

How can I identify which cylinder is responsible for a petrol engine misfire?

My petrol engine has developed a persistent misfire. How can I figure out which cylinder is the culprit in order to hone in on the root cause?
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2answers
1k views

I have an issue with Stepping on gas and no increase in speed

It only happens rarely.. but sometimes when stepping down the gas it would suddenly max out the speed gauge, and you hear the very loud engine noise as if i stepped down the gas all the way, but what ...
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1answer
191 views

How to spot remove high temp engine paint?

I've recently painted an engine post reassembly, due to cost reasons. No doubt I've encountered overspray on certain parts. I know sandblasting the engine proper is a huge no-no, and soda blasting ...
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1answer
137 views

Engine swap considerations

I'm interested in restoring an old car that has a relatively underpowered engine. I'm curious how difficult it would be to replace it with a different (cheaper, more common, more powerful) engine. ...
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2answers
2k 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
828 views

Change in engine oil color just after oil change

I have changed my new Swift VDI car engine oil at 19344kms. Just after the oil change at 19344reading means car is not run even 100 feets i checked the oil and i found it very black in color and it ...
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2answers
81 views

Purchasing a Used Car - Advice [closed]

I'm looking into purchasing my first vehicle. I have a friend who's really into buying/selling VW's and he has a Jetta from the early 2000's with 240 000 km on it that he insists is a great deal and ...
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2answers
293 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. ...
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2answers
367 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 ...
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1answer
843 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?
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1answer
598 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 ...
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1answer
2k 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 ...
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1answer
3k 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 ...
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1answer
81 views

Why my bike shows petrol missing before 2000 RPM in all gears?

I am using Hero Karizma R (225cc, 5 gears). Recently I feel a missing in all gear befor 2000 RPM. Sometimes my bike turn off due to this missing. Usually it happens at 1st/2nd gears. After 2000 RPM ...
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1answer
59 views

BMW e46 problems after Lysol in air intake

I was spraying Lysol into the cabin air intake (not the engine intake) right under windshield wipers while running the fans, and after doing this for several minutes (fans on the whole time, Lysol ...
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1answer
151 views

Risks of “excess and lack” of Engine oil

I ride a Honda Stunner CBF 125 CC daily for approx 30 kms, with an average speed of 45 km/hr. I noticed that my motorcycle has been consuming too much engine oil like it not used to few years ago. ...
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1answer
32 views

2004 Chevy Silverado 4.8 check engine light on

Codes are: P0101 mass air flow circuit failure. P01071 bank 1 lean and P0174 bank 2 lean. Did a replacement of the intake manifold gaskets and a fuel injector de-carbonization service. After 40 ...
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1answer
139 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 ...
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1answer
326 views

Noise when the engine is idle

I would like to know why my car is making noise when the engine is idle, but the noise is silence when I pressed the clutch ?
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1answer
74 views

1974 Ford Econoline E200 Van acts fuel starved after warm up

I have a 1974 Ford Econoline E200 Van with an 8 cylinder with the present symptoms: It starts and runs great, but once is warmed up, it feels like it is not injecting fuel. It loses power and slows ...
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1answer
87 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 ...
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1answer
145 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 ...
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2answers
162 views

Ford Figo doesn't start after recharging the battery

I have a Ford Figo. I had the battery recharged and got it fixed. Now the car won't start. There is a symbol which has pic of a car and a lock on it and that keeps blinking whenever I try to start and ...
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1answer
150 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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1answer
100 views

What percentage of ethanol can my ford take?

What is the highest percentage of ethanol my car can take? I have a ford escape 2007. I have been putting in either 10% or 20%. Thank you
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3answers
59 views

2001 Honda Civic timing belt assembly repair question

I have a 2001 Honda Civic. I bought it almost 2 years ago at just over 100,000 miles. It now has almost 116,000 miles and when I took it into my mechanic for a failed sensor replacement he told me ...
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2answers
714 views

Massive oil drop in the course of a few days

A few days ago i posted a question about the dealer reporting some oil spillage/leakage but that it passed the mechanical test. I checked the oil level of the car from my 80 minute drive home and it ...
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2answers
136 views

Oil in coolant, Pontiac Grand Am 99

I have a 99 Pontiac Grand Am which has done 160,000 km. Recently, I found oil in my coolant. Will this damage my car? What could be the reason behind this?
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4answers
332 views

Tunning the ECU of a Volkswagen Golf MK6 1.6 TDI DSG

I am a owner of a Volkswagen Golf MK6 1.6 TDI DSG (105HP), and i am a beginner in mechanics, but in computers i am an expert. I stumbled upon those days on some websites that claim to bring you ...
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1answer
208 views

99 chevy suburban motor kicks back

What would cause a fuel injected motor to kick back while cranking it? I have a 1999 chevy suburban 4wd 5.7 ltr. I know it needs an intake manifold gasket, but would that cause it to kick back and ...
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1answer
95 views

Engine torque throughput curve is flat or wavy in low gears between 2000 and 4000 rpm

As the title says BMW's (93 E34 525i M50B25TU) engine misbehaves in low gears, namely in 1st and 2nd, most of the time when the engine is cold but sometimes even when it is properly warmed up. The ...
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1answer
64 views

How are the engines of street cars different from trucks and performance cars?

Consider three cars. All three cars have different engines, but all engines are 3 lit. V6s. The engine in first car is made for great gas mileage. The engine in second car is made to be able to tow ...
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1answer
181 views

Different heads on Dodge Magnum 360

I'm working on a 98 Dodge Ram 2500 with a Magnum 360 V8 (roller cam shaft). It had a cracked head on one side, so I purchased a pair of remanned heads from an eBay retailer. These heads are the ...
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1answer
277 views

Hyundai Tucson Diesel 2.0 2008 - Difficulty Starting

Hyundai Tucson Diesel 2.0 2008 and takes at least 4-5 attempts to start before it idles badly for about 10 seconds and then is fine. Doesn't die at the traffic lights, no problems at all otherwise. ...
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1answer
280 views

Engine hesitates when accelerating - 1996 Sunfire

I have a 1996 Pontiac Sunfire with the 2.2L engine. When I accelerate slowly the engine seems to run fine. However, if I accelerate quickly the engine seems to hesitate. I have already replaced the ...
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1answer
114 views

1981 amc concord won't start

I have a 81 amc concord. I drove it and it died and went to start it again there was nothing. Replace starter battery and starter relay. There is no headlights no buzzer no radio no dome light. Any ...
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5answers
790 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
157 views

Diagnose lag in acceleration

Honda Accord 2003 V6 - 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 ...
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1answer
214 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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1answer
152 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
447 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
231 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
2k 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
979 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 ...