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divorced
New User
Aug 3, 2023, 7:34 AM
Post #1 of 2
(1374 views)
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Vehicle: 2006 Nissan Frontier XE (2.4L I4)
So this summer me and my dad changed the timing assembly on my vehicle, after finishing with the vehicle we attempted to start the truck, there was crank however the vehicle had absolutely zero spark and no throttle response when the key was turned to try and start the vehicle. The spark plugs are brand new, brand new coil pack, brand new throttle body so now we are stuck at a bypass on believing it is some sort of electrical issue but we do not know where. We attempted to flash the codes however the code reader showed that the vehicle had zero codes to display and it was in perfect health. If you have any insight on what the issue/problem could be please let me know as I have tried almost everything to get this truck to start but I just can't figure it out.
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Hammer Time
Ultimate Carjunky
/ Moderator
Aug 3, 2023, 11:26 AM
Post #2 of 2
(1364 views)
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Re: Crank No Start
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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 one or combination of these functions has dropped out,
you will know which system is having the problem.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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