Engine cranks but no start I have replaced everything

KRAUTHEAD

MEMBER
1996 NISSAN ALTIMA
2.4L
4 CYL
2WD
AUTOMATIC
240,000 MILES

I have replaced everything on the car that's replaceable. Every time I added a new component the worse it ran. I replaced intake gaskets, distributor, All the sensors, fuel regulator, low idle sol, vacuum switch, vacuum regulator, You name it I replaced it, fuel pressure is 60 lbs. Other than main computer why wont it start? No fuel coming out of return to tank.

Sunday, July 18th, 2021 AT 10:53 AM

1 Reply

JACOBANDNICKOLAS

MECHANIC
110,176 POSTS

Hi,

Will the engine start for a couple of seconds and then stall if you use starting fluid?

First, take a look through this link which covers the most common causes of a crank no start condition.

https://www.2carpros.com/articles/car-cranks-but-wont-start

Now, if you look at the pic below, it identifies the manufacturer's specs as far as fuel pressure. The pressures indicated are with the engine running at idle, but will only go up slightly with it off. It indicates with the regulator disconnected, it should have 43 PSI.

When you say there is no fuel to the return, that doesn't make sense. Something must be blocking the fuel from going through the fuel rail.

If I recall, the test port is after the filter. So, if you are showing 60 PSI there, the fuel has to go somewhere or it's blocked.

Have you released fuel pressure and then removed and inspected the fuel rail?

Let me know.

Joe

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