96 Lumina - vapor lock?
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color codes
CHEVROLET LUMINA 1992- 2000 VEHICLE WIRING - AlarmSellout on www.gobookee.net - free eBook download
IDK if this helps at all it really does not tell you about purple wire except that's it's ignition which makes since when you turn on ignition you get power at that purple wire you need to scroll down to your year though! you might need this later for testing other wires! also make sure all the wires hooked up at battery terminals are really clean and no broken wires, I think you are doing the right thing about checking relays too because they can cause voltage problems but grounds are very important! another thing if you do fix the voltage problem don't be so sure your pump in the tank is still good!
IDK if this helps at all it really does not tell you about purple wire except that's it's ignition which makes since when you turn on ignition you get power at that purple wire you need to scroll down to your year though! you might need this later for testing other wires! also make sure all the wires hooked up at battery terminals are really clean and no broken wires, I think you are doing the right thing about checking relays too because they can cause voltage problems but grounds are very important! another thing if you do fix the voltage problem don't be so sure your pump in the tank is still good!
Last edited by Sean Lapp; Aug 6, 2013 at 1:49 PM.
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So I finally got my head outta my **** and through another forum found out that the purple wire is voltage for the relay, not the pump It IS the grey wire so Sean and Tech2 you were right!
So I ran the test again. I had my wife crank the car and when cranking I get 12.46volts at the connecter plug in the trunk. Just with the key I still get 12... Looks like I will be dropping the tank this weekend. Am planning on replacing with a Delphi pump and then also a new strainer and a wiring kit from O'Reillys I also read that those wires in the tank are a problem Assuming thats what the wiring kists they sell are replacing?
So I ran the test again. I had my wife crank the car and when cranking I get 12.46volts at the connecter plug in the trunk. Just with the key I still get 12... Looks like I will be dropping the tank this weekend. Am planning on replacing with a Delphi pump and then also a new strainer and a wiring kit from O'Reillys I also read that those wires in the tank are a problem Assuming thats what the wiring kists they sell are replacing?
Last edited by dplantz; Aug 7, 2013 at 7:17 PM.
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So today at lunch I succeeded in dropping the tank and pulling out the fuel pump assembly. The internal wires all looked good to me, but I ordered the replacement kit anyway. I hooked it up to 12v source and the pump ran. It did seem to squeal some, but I dont know what it is supossed to sound like, so....... Parts will be in tomorrow, hope to have it running by Saturday
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Ok so replaced fuel pump with a Delphi unit, new strainer and precision works wiring kit. When I tuen on key I can definitly "hear" the pump turning on now, it was very very faint sound before. So far car is running and performing OK. Will monitor for a while and drive in Texas heat this week
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Ok so replaced fuel pump with a Delphi unit, new strainer and precision works wiring kit. When I tuen on key I can definitly "hear" the pump turning on now, it was very very faint sound before. So far car is running and performing OK. Will monitor for a while and drive in Texas heat this week
Sean