Motor is spinning over fine but it doesnt seem to be getting any fuel all fues and relays are ok but im not getting any power to the fuel pump what should I try next
have the same problem?
Wednesday, November 24th, 2010 AT 3:37 PM
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. Also, on this one note if the fuel pump pressurizes when key initially turned on only or after cranking also.
Once you have determined which of these functions has dropped out,
you will know which system is having the problem.
Wednesday, November 24th, 2010 AT 3:40 PM
Unless there is a loss of compression. The first most likely cause could be a broken or jumped timing belt or chain.