View Full Version : Help save our trip, engine wont start
06-29-2012, 03:06 AM
Im in lake Powell, day 5 of 8. My buddy brought his 03 xstar with the cadillac 385 hp motor with 415 hrs on it. We had just filled up on gas, and I was pulling a wakeboarder when it started to sputter and died. It has got to be a fuel issue because it will fire up with starter fluid, but will not continue to run without the starter fluid. We took the fuel pump out and hooked it to a battery and it ran, also the filter looked good, and the gas did not appear to have water in it. I am out of ideas. Is there anyone out there that may be able to give me something to try out here in the middle of nowhere?
06-29-2012, 03:55 AM
Is there an inline filter in that boat? If so, replace it if you can. Any autoparts store should have a replacement on the shelf. Bring the old one in with you. Past that you'll have to wait for someone with more knowledge of that motor. Good luck!!
06-29-2012, 03:56 AM
Another thought: Can you disconnect the gas line at the engine and put it into a jar or something to catch the fuel and turn the key on? This will tell you if the fuel has a clear path from the pump, which I'm assuming is an in tank model, to the fuel rail on the motor. At least it would narrow things down.
06-29-2012, 05:04 AM
Did the fuel pump run whilst in the boat would be the first question? Just wonder did it have power to it in the boat and if so did it have any pressure or will it only pump open flow?
06-29-2012, 07:31 AM
With a test light, make sure you have power to the fuel pump connector.
Also sometimes that connector comes loose and you have to wiggle it for the fuel pump to run.
If not above, you may have a pump that runs but does not produce enough pressure. Can you find a pressure guage at a nearby auto parts store? If not, try pushing in on the schreader valve to see if any pressure builds up in the fuel rail.
06-29-2012, 08:11 AM
You could try disconnecting the battery for a few minutes in order to reset the engine computer. But honestly, I don't know anything about this engine, so this is just a general suggestion.......
Good luck - I really hope you solve this and get back on the water!!
06-29-2012, 09:05 AM
Smell the fuel. Is it possible you got diesel?
06-29-2012, 09:48 AM
walks, talks and smells like a fuel pump......
06-29-2012, 10:24 AM
Yeah, sounds like fuel pump issue to me as well - coming from someone who just had this same issue Wed. night.
Two ways to check for a FP issue:
1) pump comes on when key is on (indicated by whining noise coming from tank area) but never shuts off due to never making enough pressure (~55 psi) to cycle off.
2) Depress the shraeder valve (bicycle tube style valve) on the fuel rail on the engine. 55 PSI of pressure should show a spray of fuel out of the valve when you depress it, if it is just a dribble out of the valve, then no fuel pressure = bad fuel pump.
06-29-2012, 11:13 AM
Pump comes on with the key for about 5 seconds, but that shrader valve does not spurt out gas. Fuel pump still?
06-29-2012, 11:18 AM
Sounds like it. Do a search here - there are tons of threads with pictures. You can get one at a local auto parts store and replace in about 1-2 hours.
06-29-2012, 11:54 AM
^ test the pressure before you throw money at it. Nothing worse than doing all that work and spending money on a problem that doesn't exist. I agree though its quacking like a duck
06-29-2012, 12:07 PM
06-29-2012, 12:45 PM
06-29-2012, 12:47 PM
06-29-2012, 02:50 PM
There's next to no options here in the middle of nowhere. There is a napa, does anyone have a napa cross reference pump? I'm looking for bandaid options at this point.
06-29-2012, 02:57 PM
Napa has them. Do a TT search for number.
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06-29-2012, 03:17 PM
I searched through the Fuel Pump 101 thread, and couldn't find a NAPA part number, but did see these:
Carter part# for a pump that fits 2002 Escalade V8 with the 364ci 6 liter is P74832M. But not having any luck crossing to Delco. Also found a Bosch module #67317.
I have not done this, just copy/paste what I saw in the thread. Good luck.
06-29-2012, 04:59 PM
Any of those should be able to be crossreferenced.
06-29-2012, 05:03 PM
This was used on an '08 MCX. It was the cross from the stick Cater pump.
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07-03-2012, 12:17 PM
A big thanks to all that replied, we were able to find a pump from Napa in Salt Lake. My Niece was coming down and she picked it up and we were only broken down for 24 hours. Thanks again to everyone that helped.