The battery has been tested four times. The first three times it tested alright. Yesterday it failed, having only 10.3 volts after 2 load tests. I thought great, at least we found it. Ha! Hooked up the new battery, does the same thing. I have checked all the wiring and cleaned the connections to be sure they were making good contact with each other. All the hoses have been checked. The alternator is brand new. I had thought that was the original problem and had it tested. It was on the border line and had a bearing that was starting to make some noise, so I replaced it. The starter was checked and it is well within it's parameters. The coil and ignition module have also been changed. Something is drawing a large amount of power during startup and while operating. The system voltage while running is between 15 and 16 volts, a lot higher then the normal 14 that it usually is at running. I am beginning to suspect the fuel pump. The pump doesn't make any more noise then usual, and it doesn't surge, miss, or stall while running, and it does come up to pressure right away. But it just seems strange that I am getting a good hard spark and it is spinning really good, yet it won't fire without the extra voltage. I did just replace the pump about 15 months ago, but that doesn't really mean much. The thing that leads me to believe this, is that when this problem first started, I could turn on the ignition severals times to pressurize and then I would get lucky and it would fire and run. But through testing it, everything appears to be well within it's parameters with the pump. I don't know. Hate to tear that tank out and found out that isn't it.
Saturday, February 4th, 2006 AT 7:57 AM