Sentences with phrase «idle the engine for»

How many people really know that you need to idle the engine for a certain amount of time, to allow said turbos to spool down, before shutting the engine.

It's much «greener» to clip a battery charger onto the battery than it is to idle the engine for that long.

Not exact matches

By leaving their engines idling for long periods, drivers contribute to air pollution, waste fuel, and produce noise and fumes that harm the environment and public health.

Those modifications include stop — start (idle - off) systems in which the engine shuts down when the car is stopped during driving; low rolling - resistance tires (which are harder and thus less flat, reducing friction); variable valve timing for engines, which increases gas consumption efficiency; and fuel economy computers or displays to encourage eco-driving, such as such as those in the Toyota Prius, which show miles per gallon averages for that moment, hour, week or month, or when riding downhill, so that drivers are more aware of how their driving impacts fuel efficiency.

RailPower Technologies Corp.'s Green Goat diesel — electric «switcher» — a small, short - distance locomotive for assembling, disassembling and moving trains in rail yards — was a promising technology powered primarily by batteries (even when it idled) and employed its diesel engine only to recharge the batteries.

The maximum thermal efficiency of present - day gasoline engines for automobiles is on the order of 30 %, believed to fall to a level as low as 15 % in states from idling to low - speed city driving.

Think about like the engine of a car that in a safe haven would be in a nice, slow, idle, not stressed at all versus in your garage a car where there's somebody who has their foot all the way down on the gas pedal and so that engine is just accelerated at much higher speed than it ought to be for a car that's parked in a garage.

The OEM battery in my 2008 Jetta SE 2.5 L has been nearly fully discharged one month back (had insufficient surface charge after a prolonged use without the engine running, but leaving it idle for 20 minutes made the car start again), then worked fine for a few days afterwards (but without being subjected to much charge), but then was discharged again after only a quarter of the prior abuse (since it was probably not fully charged since the prior discharge, me underestimating the driving time it would take to bring the battery back to fuller life, plus possibly missing out on water, as I found out later).

If the IAC is bad or sticking, it will be hunting for an idle, which is what your engine sounds like it's doing.

As the other answers say, the engine will idle high to start with, as the ECU compensates for the colder block and thicker oil by running the engine richer.

And that idling is one of the hardest things for an engine to do, tuning wise.

It's all a big balancing act that usually ends up at a 750 RPM range idle for a typical car, sometimes a bit lower for a big engine, and sometimes up to about double that for small engines.

Lately, after driving around long enough for the engine to get hot, the idle speed will sometimes race.

I was just searching for an answer to find how the idle speed of an engine is decided and who makes that decision.

I've read more opinions over the years suggesting that idling more than a couple of minutes is actually bad for your engine than I've read that it's good.

When idling, the load on the engine parts is so low that you may easily cause more «damage» during normal driving, e.g. when approaching red line for a moment or something.

Letting engine idle for about 7 minutes stopped this from happening.

Instead there's cleverly designed back box that delivers a muted burble at idle, yet as engine speeds rise the change in pressure causes the gases to bypass the longer silencer tube and head straight for the exit pipe, essentially creating a louder straight - through set - up.

I have a Volvo s40 1.6 D. I left engine running on idle for 20 mins or longer, then drove off.

For example, at the red light when idling and without touching the gas pedal, the engine in some cases starts «hunting», oscillating between the usual minimum rpm and an higher value like I was giving rpetitive pushes to the pedal, or, more frequently, the engine start keeping a quite high rpm (I estimate 2000 - 3000 rpm), VERY constant, before dropping back to normal.

If gunge builds up on the butterfly valve, it can restrict the air required for a smooth idle when the butterfly is closed, so the engine ECU needs to open the Idle Air Valve more that it thinks it should have to and you get into a cycle oidle when the butterfly is closed, so the engine ECU needs to open the Idle Air Valve more that it thinks it should have to and you get into a cycle oIdle Air Valve more that it thinks it should have to and you get into a cycle of...

Make sure the engine idles smoothly and revs cleanly, as you'll need to charge for the red line to extract all the performance according to Mike, «You really have to rev the nuts off it».

The symptoms of engine - valves that are too tight, are as follows: Bad fuel economy Difficult to start Stalling idle The manual for my scooter...

Cold engines use higher fuel to air ratio and higher idle RPM, which is partly responsible for the increased volume.

Then the engine is started and run at idle only for about 20 minutes.

Engine was only idle for 24 hrs..

Your vehicle, which is old in terms of engine controls and technology, will tend to try and advance spark at idle and run a little lean for emissions purposes.

I will say for the root cause of condensor / engine cooling fan inoperative what you will see is terrible A / C performance at idle and good performance at 60 MPH.

It is natural for an engine which sits idle for a long time to have some starting trouble.

It is normal for the idle to be higher (up to 2000 RPM) when the engine is cold.

There's a burble from the exhaust at idle that sounds like it's been carefully modelled on an i20 WRC in «road mode», but for the rest of the time the engine is the model of restraint, rarely rising above a background hum and only making itself known via its effortless mid-range urge.

New beetle 2000, I put a 327 obd2 elm and I used it for a few months to see the speed, tachometer and engine warm up, now I have serious suspicions that it has ruined the engine time, it has a uneven idle.

Since it is not dependent upon engine speed for the noise (you stated the noise increased speed while the engine itself remained at idle).

The first time I did the test I was idling in line for 20 minutes and they read engine temp as 126 C *.

He was made aware that I had these start - up issues before and that it was idle for a while but periodically was started to prevent the engine from freezing up.

There is also a top tray for mounting equipment as well as a police engine - idle feature and rear anti-stab plates.

Hi to those starting engines which have been sitting «idle» for more than three months.

I don't have corroboration or evidence on this next bit, which is just my speculation, but I suspect that there is just a stack up of various tolerances and timings in the system and gains set in the automatic idle throttle controller in the car's computer that for some engines under some conditions stack up in a way that causes the engine to shut off unpredictably.

The engine sounds great when it revs, but it's too quiet for my liking at idle and off - idle.

If that one is a bit «lazy» (usually because it's clogged), closing the throttle fully might starve the engine of air for long enough to die before the idle control supplies enough air.

But for a truck engine, idle consumption may be larger, but I bet it still requires more than a day.

The problem is that the output from the alternator varies dramatically - when the engine is running at high revs the voltage will be higher than at idle, for example.

After the engine cooled down at the first start with cool engine the idle was not stable for few seconds.

Additionally, diesel engines deliver more efficient fuel economy than gasoline engines and maximize fuel efficiency at idle, making them ideal for tasks requiring prolonged idle time.

What was most interesting was that the Sonata still drove almost exclusively electrically, the electric motor still powering the wheels (unless full throttle was called for) and the gas engine idling no matter what the speed.

The SD4 is decently potent but not as refined as you might expect, with its rather gruff idle literally setting the tone for an engine note that's never what you'd call intrusive but is always present.

You should first check for any vacuum leaks that would cause the engine to idle higher than normal.

The Vertrek also wears Ford's Auto Start - Stop system which shuts down the engine at idle — at a stoplight, for example — and quickly restarts the engine when the driver wants to move off.

It had the same 0.921 in (23.4 mm)- diameter lifters of the first - generation Oldsmobile engines, rather than the standard 0.842 in (21.4 mm), which let engineers increase the camshaft's ramp speed for more power, 385 hp (287 kW), without sacrificing idle or reliability.

It is possible the Idle Air Control valve, which «adjusts» engine idle speed, is faulty, or is receiving an incorrect signal to raise the engine RPM (say for aiIdle Air Control valve, which «adjusts» engine idle speed, is faulty, or is receiving an incorrect signal to raise the engine RPM (say for aiidle speed, is faulty, or is receiving an incorrect signal to raise the engine RPM (say for air...