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How can that be possible??????

How can fuel be introduced into the combustion chamber, with the car off?


I'll give you a few hints:


Fuel Pump = Electric
Injectors = Electric
ECU = Electric


Car is off.

 

^What he said.

 

I was going to post a long reply but everyone on here seems to have covered everything pretty well. So here are my two cents.

1. electric fan not running(since the car is OFF) = radiator not cooling
2. trans in a low gear = high RPMs for the engine = unusual temps

 

Chris, any time I've ever had to be towed I always call for a flat bed, however there's nothing wrong with towing a RWD vehicle if the trans is out of gear. This whole incident is the responsibility of the tow truck company, you don't need a lawyer at this point that's what your auto insurance is for. Let them deal with the responsible party and have Infiniti fix whatever is wrong with the G....engine, trans or radiator.
Gary

 

Gary,
It is absolutely not a good idea to tow a car by the drive wheels more than a few miles. Just because the car is not in gear doesn't mean that things in the drivetrain aren't at work.

"There are trailers that keep all four wheels off the ground, tow dollies that lift only two wheels, and tow bars that keep all four wheels on the ground. You may think, "What's the difference? Towing is towing. The way you pull a car or truck behind your vehicle doesn't really matter, right?"

It matters a lot. If you let a towed vehicle's drive wheels stay on the ground, you risk severe transmission damage. "

A little info for you guys.

http://auto.howstuffworks.com/auto-p...ve-vehicle.htm

 

^ But the transmission was already damaged. It needed a new clutch.

Also, if the car is in gear, it is even possible to two the car? I know you can't push a car when it's in gear.

 

Probably needs more than a new clutch now.

 

The transmission is damaged because the clutch needs to be replaced......

Those are two totally different parts, man.

You can tow the car while it's in gear, but that's a terrible idea.

 

yes, you can tow a car while its in gear. it would take more force than the average person could provide to push it while in gear though.

 

^+1

The radiator is the least of your worries

 

I was assuming since you mentioned fuel was helping keep temperatures low then it was entering the engine.

I was simply building on that idea.

Here is the quote im referring to:

Why mention fuel when its got nothing to do with whats happening to the car when its being towed.

Clearly this isn't a straight forward issue and the OP needs to jump in and tell us whats going on with the car as soon as he finds out.

 

I see, you got the post wrong.


To clarify:

When an engine is ON, it needs combustion (fuel, air, spark). The fuel igniting is what causes the "explosion" this is what we hear coming out of the exhaust (Rapid Explosions)

By the car being off, no fuel is introduced. So all you are left with is friction. Friction alone with no cooling (even fuel) will cause damage.


I wouldn't be amazed if his cylinder walls are damaged. Pistons travel at a high rate of speed. Some close to 3500 FEET PER SECOND.


Thats why I mentioned fuel. because without the fuel added into the equation the problems are now magnified substantially.

 

The oil is there to take heat out of the piston friction. The radiator is used to take heat away from the heads(combustion process). IMHO, the pistons just turning with the oil pumping doesn't create that much heat. Ever see those wear tests on TV for the oil commericals? Where they have a bath of oil reducing friction on another piece of steel? Heat isn't the issue as long as the friction is down. Which is exactly what the oil is supposed to do

 

Most people with manual boxes tend to place the lever in 1st Gear, and sometimes pull the E-Brake.

thats a fact.



Now,

Say (hypothetical) your car gets towed in 1st gear at 35-45mph

What damage do you think you are doing?


actually lets sit down and do some math shall we?

VQ35DE Stroke = 81.4MM = 3.204724409448819 INCHES (rounded off 3.21)

So 3.21 Inches x 6500 RPM = 3477.5 FEET PER MINUTE

http://www.csgnetwork.com/pistonspeedcalc.html

Rub you hands together at 6500 RPM see what happens.



Sure add some oil, But what happens when that Oil reaches the temperature that is equivalent to the temperature of the friction? Remember the fans are not running and what helps cool the engine oil? thats right! the water block at the oil filter, so if the fans are not running that means the radiator temperature spiked (RAPIDLY) because radiators have relief valves (the cap) but only so much fluid can escape through a 1/4inch thin hose.

 

Yet, I am very sure your first gear is not designed to go at 45MPH for long as it will be far over 6500RPM