Motor Vehicle Maintenance & Repair Stack Exchange
Motor Vehicle Maintenance & Repair Stack Exchange

Questions tagged [engine-load]

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How is engine load determined?

I'm struggling to find information on how engine load is defined. Is it really just a fancy word for torque demand? There are three parts to this question: Is there a theoretical equation that is used to define engine load? If so, what is it? I…
Zaid
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Is high engine load bad?

I drive a 4-speed automatic with a 1.1L 70 HP engine. Naturally, I very frequently find myself in situations where pressing the gas pedal deeper doesn't increase acceleration (i.e. maximum engine load). Some of these situations include going uphill…
glibg10b
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Pivoted curved-path piston engine

Years ago, I saw a documentary about engine efficiency where people were testing a pivoted, curved-path piston engine. The claim is that the standard piston engine, with straight up-and-down path, causes lots of friction with the walls while the…
fernacolo
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Can 100% calculated load be reached in neutral?

While searching for information about how is engine load calculated I came across this question which contains an equation for the ECU load calculations. As I understand it under fixed atmospheric conditions engine load depends only on current…
I have no idea what I'm doing
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Is driving at 3000RPM the same for the car, whether you are in first or fifth gear?

So I was wondering, when taking the car on a straight in 5th gear at 3000RPM (~108km/h) or in first gear at 3000RPM (low speed), what are the differences experienced by the engine ? Apart from airflow being better at high speed I guess, the engine…
P1kachu
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What would be better for an engine driving at 60mph or 70mph? I wish to get the most miles out of my engine?

At 60mph my engine revs at 2800RPM and at 70 it's 3200RPM. My qustion is which condition would give the most miles from my engine.
ceefax12
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Reverse on Auto transmission isn't engaging properly after extensive engine braking

First post onto this forum. We have a 2012 Hyundai SantaFe with a 3.6 Super charged petrol engine. Recently we spent some time visiting the local mountains, and I needed to use the auto box in a low gear for both ascent and descent, switching…
DaveM
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Calculated vs absolute engine load

The OBD-II protocol (SAE J1979) has a couple of PID's that relate to engine load: +------+-----+---------------------------------+ | Mode | PID | Description | +------+-----+---------------------------------+ | 01 | 04 |…
Zaid
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Determining active gear from OBD2 for Ford Fiesta

I am trying to to write an app which advises the driver to change gears and do some other driving quality assessments. For this purpose I need to determine the RPM and currently active gear in a manual transmission vehicle. I am working on a Ford…
Mohammed Lokhandwala
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Diesel Engine Power

Let's say we have a 6 cylinder diesel engine having 385 KW power. Now I am running this engine at high idle of 1900 rpm. What will be power produced by this engine? Is it equal to max power or less than that and when I will apply load than it will…
DDiesel
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Broken welded nut inside frame for motor mount

I was trying to replace the passenger side torque mount on my 98 civic and both nuts that are welded inside the frame snapped off. Now the bolts and nuts just spin. I’ve read similar posts from people who had to cut an opening in the frame to access…
user58423
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Accidental brief full throttle on start - any concerns?

I've got a 6 Cylinder N/A BMW (N52 - 3.0) engine with 65,000 miles, that has been fully maintained (last oil change was a few weeks ago). It had been sat for about 10 days, when I got in, started it, and maybe 5 seconds later leaned over to the back…
maxp
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Engine locked while driving

Hi I have a volvo 440 d13 motor. Driver could not get the truck started but dashboard displayed that it was in neutral and no faults appeared. A mechanic went to site and said that the truck was stuck in gear and after getting air into the gearbox…
Rajesh
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Car shutting down on its own while driving

My car is Santro xing (2003 , 1 lakh+ distance). Recently i am facing a problem that it is shutting down on its own while driving. Any specific reason?
Rishabh Dev Upadhyay
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Suzuki Liana 2003, Sounds very loud in engine and won't increase rpm?

I got a Suzuki Liana 2003 1,6 5D that has gone 145000 Km. The engine oil was changed at 140000 km. Air filter cleaned according to instruction since it was new. Oxygen sensor new and working properly (checked with multimeter and diagrams). Couple of…
Payam30
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