Question about 1999 Chevrolet Silverado 1500

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I have a 1999 silverdao 1500 i have juice going to the fuel pump relay and no juice to the pump it wont start

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You need to verify the relay is working properly.

Posted on Aug 30, 2010

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1 Answer

91 1500 fuel pump works but wont start no fuel coming out of injectors


have you checked your fuel filter? also may be a problem with your fuel pressure regulator. also consider fuel pumps are known to get weak. good luck

Jan 03, 2013 | 1999 Chevrolet Silverado 1500

1 Answer

1999 chevy silverado ran out of gas


After you have the battery charged, you may want to check the fuel pump relay and see if the pump is getting power.
Its possible the pump is cooked from not having gas in the tank.
The liquid gas cools and lubes the electric pump.

Dec 24, 2012 | 1999 Chevrolet Silverado 1500

2 Answers

My 1999 Kia Sportage won't start. I checked the fuel pump while the key is on the ignition and I get the impression that it is not getting any juice. Fuel pump fuse is OK. Both cam and crank se


Well for starters, you need to diagnose the problem before replacing anymore parts. I say this because you mention both the fuel pump and sensors dealing with the ignition system which are 2 separate main things. Basically it takes 2 things to make an engine start, fuel and spark at the spark plugs. You need to narrow down what is missing because it seems since you replaced sensors dealing with spark and then you mention the other need fuel. I'm not sure as to where to start to help until whatever is missing is diagnosed and then find the cause of the loss. There are a couple of things you can check. Below is a picture of the relay box in the engine compartment. With the help of somebody put a finger touching both the fuel pump relay and the EGI main relay. While touching them have somebody turn the key to the "on" position (no need to try and start). When the key is turned on you should feel a "click" inside both of those relays. The fuel pump relay will click for about 3 seconds and the click again to shut off. The EGI main relay should stay on. If both seem to be fine you need to make sure of the fuel pump gettting "juice" and for power to the ignition system like the coils. You can get to the power/juice wire at the fuel pump pretty easy. You can access the connection at the fuel pump by lifting the lower part of the rear seat. Once the seat is lifted you should be able to see a part in the carpet that is cut to be able to lift the carpet up and access the plate covering the access to the fuel pump and/or the top of the fuel tank. Using a test light, check the green and yellow wires at the fuel pump. You should have power at those wire when turn the engine over or if the key is just turned to the on position you should have power there for about 3 seconds. To begin checking for spark or power to the ignition system you need to make sure you are getting power to the ignition coils. The red and white wires at the coils are your power wires. Check those. Also you can check the power at the fuel injectors. When the key is turned on or when trying to start, you should have power to the green wire at each of the fuel injectors. You should have constant power/juice at each of the fuel injectors. This is where I would start to narrow down the loss. Start here with these tests and let me know how the tests come out by replying/commenting here or you can email me directly at csautomotivecars@att.net ith what you have found out. Once the first tests are done and I know what the results are, we can go to the next step with a couple of other tests to figue the problem out. If one of the relays don't "click" then you have a possible bad relay. The EGI main relay is a common thing to go as well as the fuel pump relay. Don't mind helping and there is no cost to you for it but I don't want to tell you to start replacing parts until the problem is located. Hope this helps get you started.


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Apr 23, 2012 | 1999 Kia Sportage

1 Answer

I have a 1999 silverdao 1500 i have juice going to the fuel pump relay and no juice to the pump it wont start


The relay has power on 2 terminals not just one. the relay uses a smaller current to control a larger current...Apply 12 volts to the grey wire aka battery positive and see if the fuel pump will run. if it does ,Check all fuses. and check operation of the fuel ballance module.

Mar 17, 2010 | 1999 Chevrolet Silverado 1500

2 Answers

My fuel pump will not turn on


check the fuel pump relay and if it is good then you may have to replace the fuel pump in the gas tank and also check the wires at the top of the gas tank

Mar 08, 2009 | 1999 Dodge Ram

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