Please help

  • 4 CYL
I have a 2005 nissan altima that wouldn't start I put 1gl og gas in there just to get me to the gas station I noticed that when I would crank the car up I heard the gas coming out from up under the like in between the drivers door and passenger door. So I went and got some fuel injector cleaner put that in there waited 24hrs tried to start it again same thing happened again! What is going on?
Do you
have the same problem?
Monday, April 18th, 2011 AT 4:38 PM

1 Reply

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.
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Monday, April 18th, 2011 AT 5:06 PM

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