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Need to know what leads to hook up to so I can direct test the fuel pump in a 2004 chevy classic

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Pull the fuel pump relay. Jump pins 30 and 87. 30 has power all the time, 87 is the fuel pump. The bottom of the relay will show you which ones to jump.

Posted on Dec 04, 2016

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Where is fuel pump fuse and relay on 2004 chevy classic


In the under hood fuse / relay box . Fuse #48 15amp F/P - INJR , Relay # 18 fuel pump . GM Fuel Pump Relay Testing

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1 Answer

Where is a inertia switch on a 2004 Chevy caviler I was told its under the dash


Ford uses inertia fuel cut off switch not Chevy or any other GM products . If you have no fuel pressure check the fuel pump relay an check out this video on trouble shooting GM fuel pump circuit .
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Do a 2004 Chevy classic have a fuel pump access panel


no,your anti theft device is activated,you need to lock and unlock your doors a couple times with the key fob,not the key,and then you need to put the key in the ignition and start it,if you dont have your key fob,call your car dealer to get a new one,they are programmed for each car only,you cannot bypass it.

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1 Answer

Fuel pump testing


Yes the gray wire goes from the relay to the pump, and the black wire grounds the pump.
I should tell you running the tank dry kills the pump. The pump uses liquid gasoline to cool and lube the pump. Running low on gas makes the pump work harder and hotter. Never run an electric pump below 1/4 tank of gas.
While you have the pump out you should fix the gauge too if you can.

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1 Answer

2004 chevy classic power windows front passenger


It sounds like the front window has a bad window switch. Removing the switch panel is usually not that difficult. Look for a pry slot usually located at the back of the panel. Insert a small flat blade screwdriver and pry up on the panel. The switch panel should come out of the door panel. Next, locate the wiring harness for that switch. The switch panel can be tested as follows :
1. Connect a test light to one side of the harness and operate the window.
2. Do the same thing for the other side of the harness.
If the light comes on in one direction but not in the other, then the most likely cause is a faulty switch panel. Perform the same procedure for the rear window. If it lights in both directions, then the most likely cause is a bad window motor. If that is what it appears to be, then I can tell you how to test the window motor before replacing. Just give me a response back if you need to. I hope this information has been helpful and thank you for using Fixya.com.

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1 Answer

Have fuel problem changed 2 fuel pumps wiring and car still runs for 1/2 day then stops again 0n 2004 chevy classic


clean injectors, changed fuel filter, check for hose and pipe for clogging, check fuel pump relay try it by bypassing relay, check oil sender, (3pin Oil sender)

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4 Answers

1995 chevy caprice classic


Also do not let tank run low because fuel in tank keeps in tank pump cool. This is why the pump is in the tank.

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