It keeps shuting down i have replaced fuel pump, plugs,coil, when driving it will just shut down if let it set for a few min it will start back up now it will not start...

Hi

did you change the fuel filler as it may be dirty

also have you got enough fuel pressure

you should get it diagnosed first to help pin point the problem

fuel filters

car diagnostic machine to detect error codes


cheers

Fuel relay is what I would look into next. Check the temp of the vehicle to when it shuts down.

FUEL FILTER,,IF IT IS OLD-REPLACE!
FUEL PUMP NOT REALLY SUSPECT.....BUT POSSIBLE AS IN A THERMAL SHORTING (AFTER A SHORT TIME)
YOU HAVE TO DETERMINE WHETHER THIS DELAYED STALL ISSUE, IS COMING FROM A FUEL OR ELECTRICAL MALFUNCTION. IE: ELECTRIC CUT OUT...SUDDEN LOSS OF POWER...FUEL ISSUES: ROUGH RU..THEN SHUTS DOWNNING, BUCKING & SURGING
IF YOUR NOT FIXED...JEFF AT: JLGPROP@!YAHOO.COM THE WORX GROUP L.L.C.

Need more information. Is the engine hot or cold when it shuts off ? Does it do it when idling or when driving ? How long do you drive before it acts up? High speed or low speed Please describe the symptoms with more information. Problem could be anything from water in the gas to bad fuel pump, bad spark plugs ,fuel filter, injectors or ignition coils.

Could be the cam sensor, crank sensor, coil pack, fuel pump. Even if no warning light is lit, the computer is recording these shut downs and why. A good mechanic, with the proper scanner can pinpoint the culprit.

I need to know if it has a carb or fuel injected. When it shuts down do you have spark check it with an old spark plug hooked to the wire and grounded to the engine. When it shuts down does it squirt gas down the carb when you move the linkage Or when you crank the engine can you see fuel going down the throttle body

My first guess would be the fuel filter. It is probably almost completely plugged.

Replace the fuel pump relay, it's easy and cheap.

After it kills, pull a plug wire and check for spark. If it has spark, check for fuel. I can't remeber where the service port is on the F.I of a Neon but it'll look like a tire air valve cap but a little larger. It''l be on the fuel rail or line somewhere under the hood.

Take the cap off and depress the valve. If fuel doesn't squirt out (not drip), you're losing pressure. Neons were bad about fuel pumps so it MIGHT be this. They run a little over $200 for just the pump. I had a retail unit that kept doing this due to fuel deposits from Ethanol. It kept clogging the "filter" sock in the tank. After it set a while the stuff would sink back to the bottom and the car would start back up.

One of 2 things;

Fuel pump is going out - does driving conditions change the length of time?

Computer over heating - make sure the computer if free of any obstructions and air can flow freely around it. if clear then replace the computer