Jarydfb

First off I have already went through other postings but i cant find exactly what im looking for. So here's my issue

I drove to school in my gslse and it was just as good as usual and after i got out i went to start it and it didnt start. Ive already found that my fuel pump is the issue and after testing the connectors im getting 8-13 volts to the positive (red wire i would presume) and 6 volts on the ground (black wire). So understanding that grounds are supposed to have 0 volts can i just reground it to the chassi or something?

Also, no one has given me a clear location of where the fuel pump relay is.

Any help or feedback will be greatly appreciated, Thank you

gsl-se addict

iTrader: (3)

Check voltage between the connector instead of against ground.

Unless it has been messed with, the fuel pump will only run when you are cranking the car (starter spinning) or if the car is running. To make the pump run when the car isn't running, turn the key to 'on', remove the air filter, and push the flapper on the air flow meter open.

Another way is there is a connector near the air filter box (has a rubber boot). You can place a jumper wire between the terminals in that connector and the pump will run when the key is on.

Check those first and we'll go from there.

Kent

Jarydfb

I used a jumper wire and i heard something going on by the fuel pump but still no start. I ordered a new fuel pump and filter and it will be here monday (3 days)

Thanks for the help kent

gsl-se addict

iTrader: (3)

Can you give us more details? It may not be a problem with the pump. A more common problem is the trailing igniter dies and that is used for the tach and to fire the injectors. So, no trailing spark = no fuel = no run.

Does the tach bounce when you crank? You could check for spark on the trailing plugs. There is also a blue connector that is connected to the trailing coil (-) terminal. You can try to move it to leading (-) terminal and see if you have any luck.

Engine could also just be flooded. You could pull a leading plug when you are checking spark and see if the plug is soaked with gas.

andernamen

iTrader: (2)

I agree. It may not be your pump. If you are hearing something, the pump is working. Use the jumper wire and do a volume test. To do this, all you need to do is remove the fuel line at the fire wall and put a container on the hose. Run the pump and see how much fuel you are getting. The correct amount is in the Haynes or FSM. You can also do a pressure test if you have a tester. If any of this is incorrect, you may end up having to drop you tank. Check the plastic in line cone filter at the fuel pump inlet. If it is clogged, you definitely have a problem in your tank. I also bought a new pump and as it turned out, my original one was fine. I coated my tank and haven't had any more problems.

Jarydfb

I've already done previous steps you've mentioned. When the car first didn't start I assumed it was flooded so i pulled the blue spade connector and nothing, then i checked plugs after cranking again and they were bone dry (a lot of carbon i must say). I then proceeded to pulling the sending fuel line and nothing was coming out, so i went to the back of the car pulled the fuel pump line that goes into the fuel filter and cranked and no fuel came out. After that i tested the connecting wires to the fuel pump and got 8-13 volts on red and 6 on black.

Also i forgot to include that the trailing coil is getting spark and my tachometer does bounce when cranking.

Jarydfb

Ive further concluded that my fuel pump is coming on its just not flowing any fuel

andernamen

iTrader: (2)

Connect the pump inlet to a separate line. Put some fuel in one of those red gas cans, put the line in. If the pump still doesn't draw from there, then I would say you are right, your pump is no good. If you do get fuel, then the problem is either in your tank or the line from the tank to the pump.

Jarydfb

so i replaced the fuel pump and it still didnt turn on. how could i check if my lines or if my tank is bad?

gsl-se addict

iTrader: (3)

You got gas in the tank, right?

Have you tried connecting the pump to say a gas can and see if it pumps? Did the car run normally before (no loss of power, etc.)? It could be a blockage between the tank and the pump, but from what I've seen, you will normally lose power first and things will just get worse.

You could try to disconnect the lines at the engine and at the pump and see if you can blow through them (compressed air, etc.). You can work your way back to the tank (if you think it is a blockage).

Fuel level sender could be bad and showing you have gas when you don't. Maybe try to dump in a few gallons to check.

andernamen

iTrader: (2)

Did you try this??? Is the pump making any noise? Did you put a jumper at the AFM black connector? I would say bite the bullet and drop the tank. It is not hard to do and if it hasn't been done yet, I can almost guarantee that is where your problem lies.

Jarydfb

Alright i have finally come to a conclusion. The Pulsation dampener??? on top of the fuel pump wont allow any fuel to flow through it. I heard you could delete it with a banjo bolt but the connector if female. Can i just run a hose right from the outlet to the fuel pump?

NCross

iTrader: (18)

Remove the PD and take the pump in to a parts store and find a brass fitting that screws in and just delete that little pipe that connects to the PD.