Cranks but will not start intermittently

Tiny
SKALESPLITUR
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Ken,
I replaced fuel pump then cleaned fouled spark plugs and it started. But now my engine light is on and it does not Rev up as quickly as it used to(it seems to miss slightly if I push the throttle too quickly where as before I could rev up fast without the delay), but sounds smooth when rpm's are up.
?
Could an exhaustive leak around my manifold be having an affect?
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Saturday, October 14th, 2017 AT 10:36 AM
Tiny
KEN L
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O yes big time the exhaust system can not leak or it throws the mixture off via the oxygen sensors.
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Monday, October 16th, 2017 AT 1:40 PM
Tiny
SKALESPLITUR
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Ken,
Spark plugs were gas fouled. Got new ones and it started. I guess it WAS the fuel pump. But then my plugs got fouled trying to start it.

Thanks for your replies.
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Monday, October 16th, 2017 AT 2:07 PM
Tiny
KEN L
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Glad you could get it fixed, that kind of problem can be tough. Please use 2CarPros anytime we are here to help

Cheers, Ken
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Tuesday, October 17th, 2017 AT 10:52 AM
Tiny
NBESSONETTE
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Hello Ken,

I have a 2007 Nissan Pathfinder 4.0L,
Intermittent start issue, spins over but won’t start. I can remove the positive battery cable for 1 minute and then reinstall, and the vehicle will start right up.

What could this be?
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Friday, December 14th, 2018 AT 4:58 AM
Tiny
KEN L
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Hello,

This sounds like the PCM is going out because you reset it when the battery is discounted much like you reboot a computer. I would try a used or rebuilt unit and plug it in to see what happens. Here is the location:

We can try to run the codes but I don't think it will show anything.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Check out the diagrams (below). Please let us know what happens.

Cheers, Ken
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Friday, December 14th, 2018 AT 11:03 AM
Tiny
NBESSONETTE
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I stopped and had the codes pulled today. The only code listed was a P0448 (EVAP) code. I don’t think that is the culprit though.

I will check out the PCM as per your suggestion.

Thanks!
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Friday, December 14th, 2018 AT 2:06 PM
Tiny
KEN L
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Yep, that is what I would do. Please let me know.
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Saturday, December 15th, 2018 AT 10:18 AM
Tiny
BIGRED68
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Hello Ken,

I have a 2002 Pathfinder Ti and have intermittent start but only when the car is hot, Have had a new fuel pump put in plug fuel filter, new crank sensor and had new spark plugs put in but it is still doing it. I am about ready to trade it in
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Friday, November 1st, 2019 AT 10:25 PM
Tiny
KEN L
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Hello,

I have nsee the engine coolant sensor short out "hot" causing the engine not to start we should run the codes even though it may not pick up this problem. Here is the location of the coolant sensor so you can check it out. (rear of the engine)

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.
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Saturday, November 2nd, 2019 AT 12:23 PM
Tiny
ALICIA RAYMOND
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We just got a 2007 Nissan Pathfinder! And now we realized it intermittently starts! I can't believe this happened. We should have done our research more (sign). The mechanic said everything is new in the car, and has been replaced. We have the code of P0430. What could be the problem?
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Friday, March 6th, 2020 AT 8:43 PM
Tiny
KEN L
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When the engine wont start, turn the key to the on position without cranking the engine over can you hear the fuel pump run in the tank for 5 seconds? Also we need to check for spark.

This guide will help us:

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

Please run down this guide and report back.
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Saturday, March 7th, 2020 AT 12:28 PM
Tiny
JOSHUA DYER
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I'm having around about the same problem with my 1993 Hardbody with 2.4. The only difference is mine hasn't started in at least 5 months after draining has tank because had old gas in tank.
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Sunday, January 9th, 2022 AT 1:21 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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Hi,

Have you checked for spark and fuel to the engine? Try this: See if it starts for a couple of seconds and then stalls using starting fluid. If it does, then we know it's a fuel-related issue. If there is no change, check for spark to the plugs.

Here is a link you may find helpful for testing:

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

Let me know what you find or if you have other questions.

Take care,

Joe

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Tuesday, January 11th, 2022 AT 6:57 PM
Tiny
99NISSAN
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I have a 1999 Nissan Pathfinder LE I just replaced my fuel pump and filter because they went out and now I am having these problems my car will start when cold for 15 to 20 minutes maybe and then die. I start it right back up and it’ll run for 5 minutes then dies again and won’t start until it is cold I’ve seen it could be my MAF, Distributor or crankshaft position sensor.
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Thursday, October 3rd, 2024 AT 8:14 PM
Tiny
KEN L
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Yes, it could be these things but can I ask if you have scan the car for codes?

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

This will help us get going in the right direction to help fix the car.
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Friday, October 4th, 2024 AT 11:25 AM

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