Engine cranks but no start I have replaced everything

1996 NISSAN ALTIMA

240,000 MILES • 2.4L • 4 CYL • 2WD • AUTOMATIC

KRAUTHEAD

MEMBER
3 POSTS

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.

Jul 18, 2021 at 3:53 AM

JACOBANDNICKOLAS

✓Experienced Mechanic
110,240 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

Image (Click to enlarge)

Professional Diagram for 2CarPros Members
Click here to log in and view diagram.

Jul 18, 2021 at 2:33 PM

Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.