Fuel Pump Questions

J

JasamHen

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Hello everyone. 1999 Sunfire. Drove it home last night no problems. Won't start this morning. but will crank all day long. I added several gallons of gas to ensure I wasn't out, tried to jump the car in case it was a battery issue, and checked all fuses/relays. I do not hear the fuel pump kicking on when I put the key in the ignition, so I suspect that is my real problem. I have a voltmeter but I'm a little out of my area here and perhaps my search queries aren't very good.

Before I go and buy a pump to put in, I want to verify I am getting voltage to the pump itself. There are three harnesses plugged in near that area and I'm not sure which one it is. I'm also not sure exactly how to check for voltage here.

Is it possible that a clogged fuel filter would cause a no start condition?

Any help would be appreciated, even if it just to point me to a post that I was unable to find on my own. Thank you.
 
Thanks for the reply. I did actually watch that video earlier to get an idea as to what the mechanical job would look like, but I have to agree that it feels electrical at this point and I certainly don't feel like siphoning out the gas and dropping the tank if I don't have to.

I did check both the fuse by the steering wheel and the relay under the hood. Both appear to be functioning properly. I verified continuity of the fuse and operation of the relay, and switched both out with a different one just to confirm.

The part I'm struggling with is how to properly use my multimeter to verify power at the pump itself. I'm pretty sure the gray wire should have 12 volts applied when the ignition is on, but unless I'm doing something totally wrong (which is likely) I'm not getting any voltage readings at all at the harness.

I tried getting behind the kick panel to check the power lead there but I must be missing something because it feels like I'm about to break it.
 
I was finally able to get the car started. It was in fact an electrical issue. I have not yet been able to sort out how to remove the necessary trim to gain access to all the wiring beneath the dash to the left of the steering wheel, but the problem is somewhere in there. By manipulating the wire bundles something finally made the right contact and I heard the fuel pump whir to life when the key was placed in the ignition followed by the magical sound of a car starting up.
 
glad to hear that, saved you the grief of changing the pump and still no start
 
Sounds just like my Sunbird, but it took me two weeks to find it.

I remember Mopars in the old
days having wiring issues,
now it's GM.:(

Doug in P.R.:)
 
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