Just an update. Blazer has been at local garage in nearby village. I have to wait for them to transport it back to my home before I can try any of the recent suggestions.

Thanks again

BooTs

 

Now have the Blazer in my yard.
Disconnected battery for over an hour then tried to restart. Engine appeared to fire bgut not run.
Checked the schrader fuel valve for pressure and there is none at all!(think my French mechanic may have only checked and found a dribble of fuel not any pressure)

Is there a simple method of checking if it is a blockage or the pump-or- do I have to remove tank and pump and then filter. Could I connect the valve to a pressure line a blow air the reverse way though the fuel line (experience tells me no)

Thanks again to all for your suggstions.

BooTs

PS It would be good to have it running next week when many visitors from the US will be here to commemorate the 65th anniversary of D Day.

 

Could I connect the valve to a pressure line a blow air the reverse way though the fuel line (experience tells me no)

You have good experience Boots!

Summary: you said engine turns over, starts with instant start, (starting fluid), won't stay running. New filter is installed and problem began after you ran out of gas.

You previously said the fuel pump is running, how do you know?

When you turn the key do you hear a hum or whirring sound near the left rear wheel? The pump only runs for a couple seconds if not started and once again when you turn off the key for a few seconds.

If no, the pump is not running. Check the fuse then check relays, the pump will make some noise whether the filter / line is plugged or not. (If you hear the pump, a new filter may be the answer, rarely do they get that plugged up but they are inexpensive and a good thing to maintain regularly and I see you did this already.)

If you verify the pump is running, did you try adding dry gas to the fuel to get rid of any water in the fuel? Then try starting it several times in short attempts, don't burn up the starter.

Try to remember if you made any maintenance or repairs recently or experienced symptoms of stalling, bogging down, electrical symptoms prior to this happening.

The security light is supposed to come on when you first turn on the key, then goes out after a few seconds. If it stays lit there is a problem and the fuel pump will not run.

With that done, it is time to check if power is getting to the pump if the relays and fuse is fine, (perhaps a bad wire, check continuity from the relay) if you have that ability or get it somewhere to check / replace the pump if you can't do it yourself.

Usually it is something simple, listen for the pump, check fuse, replace relay under hood if you can't hear it click when you turn on ignition, dry gas in tank, then go to complicated stuff.

Good luck, D-Day needs you!

 

Right, I now have the tank ready to remove.

I checked the connection into the filter and when I cracked it open there was no pressure just a dribble of fuel.

When the ignition is switched on there is no noticable vibration at the point where the fuel sender is fitted, BUT there is a vibration when the ignition is switched off.

Before I move to the next stage of removing tank completely and taking out the fuel sender are the any other checks I can make??

Many thanks

BooTs

PS. What is the best way to empty the tank?

 

I have just gone through everthing again.

The tank has about 4 gallons in it. Even after turning the ignition on there is no fuel pressure on the inlet side of the new filter yet it sounds like the pump starts up.

This would seem to indicate completely that the pump has failed. It would seem that I need a special tool to remove the fuel pipes from the tank or is there another way?

As said before how do I remove the fuel safely from the tank before dropping it out. It is ready to drop just supported by blocks.

Any help gratefully received.

BooTs

 

The fuel pump is held in with a clocking ring. The ring gets rotated to engage or disengage it in the opposing ring on the tank. A screw driver and a hammer is all that it takes to remove and reinstall the pump assembly into the tank.

As far as safely getting the fuel out of the tank. If 4 gallons is too much to safely lower to the ground, you can siphon it out with a small hose... You can initiate a siphon by blocking off all of the tank openings and blowing into the tank with another line with the siphon line into a bucket capable of containing all of the fuel. The level of the container must be below that of the bottom of the tank at all times for the siphon to work.

 

Thanks for the info. Tried to siphon the fuel today but there appears to be an anti siphon fitting in the filler tube. What about the fuel pipes. Is there a knack to removing them or is it a special tool that is needed. It doesn't look as if I can lower the tank with them connected.

Just don't want to damage anything, nearest Chevy specialist is in UK and parts cost a fortune. Unles anyone knows of one in France?

Thanks

 

The tank is out and the pump assembly is on the bench. Now the hard part is to locate a replacement.

From the various posts it would seem the an OE replacement is best.

Thanks for all the help so far.