TURNS OVER BUT WILL NOT START

Check the crank sensor,on the top,of bellhousing behind engine. it may cause the problem. Check the injectors.measure the internal resistance of each injector with an ohmmeter. Disconnect each injector from its harness and measure the resistance across its terminals. If resistance is not within specifications (typically 3 to 5 ohms for a low-resistance injector, or 12 to 17 ohms for a high-resistance injector), the injector needs to be replaced. A difference of only 1 ohm less than specifications may be enough to prevent the injector from opening reliably under some operating conditions.

Check out this guide as well

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

I did check the injectors resisitance when I had the upper intake off but since then I bought a new digital meter so I'll check again with that. But since the engine will not start at all it would seam all the injectors would have to have gone bad at the same time. Seems more like the crank shaft sensor would be the problem. Can this sensor keep the engine from starting? Per the manual this sensor is used to determine the engine speed.

the crankshaft position sensor signal to trigger the fuel injectors.Not all the injectors can go bad same time... So, if there is no spark and no injector activity, the problem is likely in the crank position sensor.

One day while driving my car just died and wouldn't start back up. OBD says camshaft sensor, so I replaced the whole distributior since it's all part of Assembly, replaced the fuel pump, crank position sensor, fuel filter, pcv valve, and still won't start. It has a strong cranking motion but still won't start. I'm stomped, any suggestions?

It sounds like the ECCS relay is not working here is a guide to help you check it along with the location of the relay.

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

this guide can help as well.

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

Check out the diagrams (Below). Please let us know what you find. We are interested to see what it is.

Cheers

Thanks for this post the relay was bad I had to get a new one cost me $45.00 all fixed! I love this site.

Pathfinder was operating normally one day, then it sputtered and died like it was running out of gas. Car will crank but won't start. tried spraying starting fluid in the air intake to see if it would fire but nothing. Doesn't seem to be getting a spark. All fuses seem good. All other electrical is working. Replaced Dist cap and rotor button. Still no fire.

Hi benztv, Welcome to 2carpros and TY for the donation

Check and test the following power at the black and white wire on the coil, coil itself, distributor pick-up coil, camshaft and crankshaft position sensors.

Months ago my car stalled would not. I start replaced entire distributor. Again driving it stalled and again would not start .change distributor again. Still worked okay my start took off distributor cap and when I turn key rotors not turning. Cannot find crank sensor. do not know what to do next?

If the rotor is not turning then you need to replace the timing belt. But I must warn you the valve might be bent on that engine. So sometimes the heads will need to come of for a valve job.

Please let us know what happens.

Best, Ken

I started it up went to pull out and it died and will not start has fuel pump seems to be working just will not fire up

Need to verify fuel pressure, just because the pump is running doesnt mean it is up to spec, should be between 34-43 psi if not the vehicle wont run.Also check for spark .

yes pressure looks good no spark I dont no where to start with this one maybe a relay it was running fine then just shut down like a lite switch any fuses i could look for to start or relay or fusable link any common problems that you know of thanks

it does have a factory alarm and lock seems to be working on the door locks I dont know what it does to the engine ignition I would love to bypass it anyway to pull the fuse on that

start with what is missing first, if it winds up being theanti-theft we will deal with that then

I just replaced my 1999 Nissan pathfinder engine with a new remand engine, changed all the oil and coolant, wires and spark plugs, distributor, thermostat, radiator, fan belts, and manifolds. why does it crank but not take a spark. I double check everything anything i overlooked or suggestions to get this new engine started?

If its married-up to the transmission correctly and all fluid checked it should fire up and observe the engine oil pressure/noises-start here

Engine Mechanical problem
1999 Nissan Pathfinder 6 cyl Two Wheel Drive Automatic

was drining truck just cut off won't start back- after an hour started runs for a min or two cuts off won't start back

Lets do below for a start to determine if its fuel or spark related issue and get back with some results

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 away from ground-have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs,coil's resistances,distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it

I have no spark at all. I have replace spark plugs, cap, rotor, and crank sensor. please help

Hi
Have you checked for spark at the coli wire?
Any check engine light?
Let me know

It cranks and runs good sometimes, when you turn it off or it dies. It will not start again until the next day or a day is needed in between or 8 hours later.

Hey Chrischandler913,

When it wont start, lets check for spark, follow this guide

https://www.2carpros.com/articles/how-to-test-an-ignition-system

if you have spark check for fuel pressure, here is a guide, you may need to tap into the fuel line. This gives you an idea of what to do though.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Please let me know what you find

It will not stay cranked and when it does it sputters like it is miss firing. Would that be the fuel pump and or the fuel filter or what is it ?

Why don't you test the fuel pressure and find out. that is the only way anyone is ever going to know. I can tell you it won't be the filter.

My husband changed the distributor cap because it had a hole in it, but it still wont start.

All "crank, no start" conditions are approached in the same way. Every engine requires certain functions to be able to run. Some of these functions rely on specific components to work and some components are part of more than one function so it is important to see the whole picture to be able to conclude anything about what may have failed. Also, these functions can ONLY be tested during the failure. Any other time and they will simply test good because the problem isn't present at the moment.
If you approach this in any other way, you are merely guessing and that only serves to replace unnecessary parts and wastes money.



Every engine requires spark, fuel and compression to run. That's what we have to look for.

These are the basics that need to be tested and will give us the info required to isolate a cause.

1) Test for spark at the plug end of the wire using a spark tester. If none found, check for power supply on the + terminal of the coil with the key on.


2) Test for injector pulse using a small bulb called a noid light. If none found, check for power supply at one side of the injector with the key on.


3) Use a fuel pressure gauge to test for correct fuel pressure, also noticing if the pressure holds when key is shut off.

4) If all of these things check good, then you would need to do a complete compression test.

Once you have determined which of these functions has dropped out,
you will know which system is having the problem.

won't start i change gasolin filter and i check gasolin pressure but is so ok 40psi normal PRESSURE can you help please thank you..

Are you getting spark?

yes i got spart but won't start

Check the valve and ignition timing

where can i fine valve

a have some bad code p0340 and p0105 can you explan to me what is please tank you very much

the engine will not start. the lights in the dash light up but no start. the fuse IGN AT 10A CONT was blown. replaced fuse. tried to start again. blew another fuse.

Hello,

Do have a short in the wiring causing the engine not to start here is engine wiring diagrams (BELOW) that will show you everything on the circuit so you can do some checking to see what is wrong.

There is an ECC relay, ignition coil or an injector can be causing it. disconnect them one at a time to see which one is causing it.

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Please run some tests and get back to us so we can continue helping you.

Cheers, Ken

Turn key no power to starter, the battery and starter test good. Tried jumping starter relay number 3 and 5 connections starter will power up. I replaced the relay but no power to starter when key is turned. I also replaced the inhibitor relay and all fuses look good. What should I check next?

Engine Mechanical problem
1994 Nissan Pathfinder 6 cyl Four Wheel Drive Manual 192k miles

My Pathfinder will not start. It turns over just fine. I checked the fuel pump and changed the fuel filter. It has a good spark, new battery. It was fine before. No symptoms of anything failing. It was all of the sudden....No good. I was thinking of the fuel injectors or maybe electrical. What could it likely be? Thanks.

Check the fuel pressure to rule out the fuel pump and also for injection pulses from the injector/s.

Diagram shows the starting circuit.

With transmission in P or N and ignition turned on, test for battery voltage at the inhibitor relay termnal 1. If voltage is not available, test for battery voltage going to and out of inhibitor switch, Yellow wire.

My car won't start its a 97 Nissan pathfinder the alternator has 14.5 when tested and we put in a new battery. it will start if we hook up a charger and hit it with the 60 amp boost. other wise its just dead don't even try to turn over any ideas what it could be?

It has 163 thousand miles and is in otherwise good mechanical order - nice site :-) btw