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Spark sometimes we got it started and it sputtered and fuel pump is gettin no power but works when given manual direct power and the ppl I got it from said they replaced it and it was a remaned one so I jus went and got a new one so I kno what I have done to it instead of guessing with what they told me they did
[quote=”Xbarksdale” post=69844]Spark sometimes we got it started and it sputtered and fuel pump is gettin no power but works when given manual direct power and the ppl I got it from said they replaced it and it was a remaned one so I jus went and got a new one so I kno what I have done to it instead of guessing with what they told me they did[/quote]
The Fuel pump power may not remain on for more than a few seconds while cranking until it gets an RPM signal from the crank sensor. When you turn your key on, the fuel pump should cycle some fuel for the initial start…. Are you getting power back at the fuel pump when the key is initially turned?
Check your grounds… also may be ignition switch related…
-Karl
I’m thinkin the same but it’s at a shop cuz I don’t have a garage to do it myself and what I don’t get is it cranks all it wants to everything works like it should but it not starting
[quote=”wysetech” post=69849]Ya beat me to it again ,Karl…..LoL[/quote]
My lucky night…. I can’t let you knock em all out of the park! 🙂
-Karl
[quote=”Xbarksdale” post=69850]And I get no priming from the pump on first turn at all u don’t even hear the relay click[/quote]
Therein probably lies a clue to the puzzle…
-Karl
But I pulled the relay before I sent it to the shop and gave it 12v and used a dmm and I had power and it was clicking
[quote=”Xbarksdale” post=69855]But I pulled the relay before I sent it to the shop and gave it 12v and used a dmm and I had power and it was clicking[/quote]
Are you talking about a stand alone test of the relay… That may be working fine, but something could be keeping the voltage from getting to the fuel pump…. Check grounds and for voltage at the fuel pump, also check all the wiring…. Like I said before, it could be something else. Look for frayed or split wires…. You may have to check all the way back from the dash to the pump…. You may also want to check the fuel lines for kinks, damage or bends….
I tell them at the shop and yeah I had did jus a relay test so it could be but that doesn’t explain my no spark
[quote=”Xbarksdale” post=69877]I tell them at the shop and yeah I had did jus a relay test so it could be but that doesn’t explain my no spark[/quote]
It might be related…. I don’t think a bad crank sensor would keep you from getting voltage at the fuel pump, but perhaps a bad ground or frayed wire might….
If you solve the problem of no voltage at the pump, you might solve why you are getting no spark….
Good luck…
-Karl
Sounds to me like you have multiple problems. I would get my hands on some good wiring diagrams and check the entire wiring for the fuel pump system.
Is your spark non-existant? Or erratic? An erratic spark indicates a timing problem, which is normally caused by a bad crank / cam position sensor.
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