koolrayz Posted December 16, 2008 Report Share Posted December 16, 2008 how are you measuring the fuel pressure? Quote Link to comment Share on other sites More sharing options...
Jizzle Juice Posted December 16, 2008 Report Share Posted December 16, 2008 I had a similar prob i did fuel filter fuel pump and jus gave in and did the whole sending unit and it solved the prob Quote Link to comment Share on other sites More sharing options...
V8 Beast Posted December 16, 2008 Author Report Share Posted December 16, 2008 how are you measuring the fuel pressure? Gauge in the cockpit that read off of the fuel rails. I know at times it will dropw when you first hit it, but it stays low for the 1-2 seconds before I let out of it. Quote Link to comment Share on other sites More sharing options...
koolrayz Posted December 16, 2008 Report Share Posted December 16, 2008 Maybe the pump is taking a dump, I can check that... Sounds like good advice Quote Link to comment Share on other sites More sharing options...
V8 Beast Posted December 16, 2008 Author Report Share Posted December 16, 2008 Sounds like good advice I have to agree Quote Link to comment Share on other sites More sharing options...
xlr8tn Posted December 18, 2008 Report Share Posted December 18, 2008 IMHO this tells you nothing. If the load on the system exceeds the output of the alternator the voltage can read low while the charging system is working as designed. You need to measure the load using a clamp on amp meter after the alternator and after the battery. Have you tried a different battery? there are definitely better ways but I've used that to diagnose charging issues (usually just to determine a bad battery or alternator) for 20 years and it's worked for me. A load test would be preferred but this has always worked for me. Quote Link to comment Share on other sites More sharing options...
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