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  So I was driving on the highway when all of a sudden my car stalled. After numerous attempts of trying to restart it just would not turn over, only sputtering a few times. Immediately I'm thinking fuel pump. No clanking, no smoke, no loss of performance throughout the other 300 miles I had already driven to that point. I checked my oil and it wasn't marking. I had a friend meet with some oil thinking there was some kind of safety mechanism on the vehicle to keep the engine from getting damaged. Added almost 3 full quarts of oil, attempted to start it again. Same result. Got the car towed 45 miles home to the tune of $213.
  Woke up the next day, read some forums and came up with many different scenarios. Checked the battery 1st, fully charged. Checked the fuel pump fuse, completely fine. Pulled out the back seat and headed for the fuel pump. Turned the push button start to the on position and heard the fuel pump making the priming noise fine as well. Next I went to AutoZone and borrowed the fuel pressure guage tool and hooked that up to it. Attempted to turn over the vehicle again, no marking showing any pressure getting through on the guage. So my question is, can the fuel pump still be my problem even though it seems it is priming correctly?
  
  Let me take you back even further than that...
  I bought the car back in March of this year. After a couple of weeks I started to notice a small puff of smoke from the exhaust upon start up and took it to Infiniti immediately. After their diagnosis, they determined the car had a sludged engine and needed to be replaced. Tried to hit me for 6700 for a used engine or 11000 for a new one. I told them i had no performance issues, no irregularities, no knocking, no nothing. Then they go on to tell me that another person brought the same car to that same dealership a year before and they told them the same thing. They couldn't believe it was still going. I decided to go with a couple of mechanic buddies of mine and add a cleanser. This I did twice after about 1000 miles and the car has been fine. I figured my problems were solved. Not the case anymore. DOES ANYONE KNOW WHAT I CAN DO AT THIS POINT????? I'M at a huge loss right now.

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3/4

 

Did u clean both throttle body's - Ive heard that that junk that builds up can make car shut off while running-

 

oil wasnt marking? so like it had no oil?

 

When was the last time you checked your oil?


No oil in your engine and you are thinking fuel pump?


[QUOTE=David Cruz;4145424]

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  So I was driving on the highway when all of a sudden my car stalled. After numerous attempts of trying to restart it just would not turn over,

/QUOTE]

Dude you've got a seized engine!

That is what happens when you run with no oil.

BTW AAA gives free towing up to 200 miles.

Find another vehicle.


Telcoman

 

Yea if its seized its essentially totalled. A 09 G is worth less than an engine replacement. RIP.

 

How often did you change the oil? Previous owner negligence could have contributed to sludge build up and engine damage that led to this. I'd second what Telcoman said. Expensive repair. I'd go with the used engine or new car.

 

I have seen Engines for $1450 the Install probably about the same. It would be cool if you upgraded the New Engine to handle more power.

 

Your engine may very well be seized, but before doing anything drastic I'd check to make sure the battery cables are clean and tight, there's no corrosion inside the casing of the battery cables, and the grounds are clean and tight.

 

I appreciate all of your feedback. Thank you, btw.
1st question, if the engine was seized as you keep saying. Wouldn't I not even be able to crank it at all? It's completely sounding normal with full power and just sounds like it's not getting air or gas. It has plenty of juice trying to start.
Next, so far I have checked battery, fuel pump fuse, fuel pump is making a priming sound like it should, I also checked the fuel pressure with a guage today and it did not mark anything upon trying to start. Usual sign the fuel pump is bad, but I sprayed the intake(all factory btw) and even after spraying it would not turn over.
Then I disconnected the camshaft sensors one at a time, then both at the same time, tried to turn it over again. No luck. Went on the mass air flow sensors and repeated the same process. One at a time then both off together. Nothing.
There is absolutely no clanking when I tried to start it, no weird noises, no weird smells or smoke coming from anywhere. None of that. Hopefully all that can give you a better idea of where I am. Thx again.

 

change your fuel pump and find out. if there is no pressure at the fuel rail i would assume fuel pump