[T3] Ground for Fuel Pump Plug

[Mike Fisher]

Yes.  Unhook both ends and blow air back through towards the engine.

On Tue, Jul 12, 2011 at 1:57 PM, SCS Crewcab <scscrewcab at bellsouth.net> wrote:
> Is that the line that returns unused gas from the engine? How do you blow it
> out backwards?
>
>
> On 7/12/2011 4:42 PM, Mike Fisher wrote:
Yes.
>> Be sure and blow out your fuel Return Line backwards!  They cause big
>> trouble if they get plugged up.  BTDT
>>
>> On Tue, Jul 12, 2011 at 1:32 PM, SCS Crewcab<scscrewcab at bellsouth.net>
>>  wrote:
>>>
>>> I guess you're right. That way, I can check all the lines when I take it
>>> out.
>>>
>>> On 7/12/2011 4:26 PM, Mike Fisher wrote:
>>>>
>>>> You could, but that is the hard way I'm thinking.
>>>>
>>>> On Tue, Jul 12, 2011 at 1:21 PM, SCS Crewcab<scscrewcab at bellsouth.net>
>>>>  wrote:
>>>>>
>>>>> Can I run it forward and back with it still in the car if I disconnect
>>>>> the
>>>>> supply lines coming from the tank and put them in a bucket of diesel?
>>>>>
>>>>> On 7/12/2011 4:10 PM, Mike Fisher wrote:
>>>>>>
>>>>>> You can run them both forwards/backwards in a bucket of diesel oil to
>>>>>> clean them out.
>>>>>>
>>>>>> On Tue, Jul 12, 2011 at 1:03 PM, SCS Crewcab<scscrewcab at bellsouth.net>
>>>>>>  wrote:
>>>>>>>
>>>>>>> My prob wasn't the ground at the fuel pump plug after all. It was the
>>>>>>> ground
>>>>>>> coming from lead 19 from the ECU. At the firewall in the engine
>>>>>>> compartment,
>>>>>>> just to the left of center, there is a single wire connector that
>>>>>>> joins
>>>>>>> 2
>>>>>>> single white wires. One of the wires has continuity with terminal 85
>>>>>>> on
>>>>>>> the
>>>>>>> fuel pump relay. The other wire is broken off. I'm pretty sure it
>>>>>>> should
>>>>>>> connect to terminal 19 on the ECU but, I do not see any place on the
>>>>>>> harness
>>>>>>> around this connector where this wire could have broken. It must have
>>>>>>> broke
>>>>>>> off just barely inside the harness. If anybody has a picture online
>>>>>>> that
>>>>>>> can
>>>>>>> point to where, on the harness, to look, it would help a lot.
>>>>>>>
>>>>>>> When I ground the broken white wire at the firewall, the relay does
>>>>>>> energize
>>>>>>> and I get power to the fuel pump but, the pump doesn't spin. This car
>>>>>>> has
>>>>>>> sat for 3 years with an empty gas tank and the pump was working when
>>>>>>> I
>>>>>>> parked it. I priced a new pump online and, it's a real bargain at
>>>>>>> $547.00.
>>>>>>> I'm hoping the gas that was left it has the pump mechanism gummed up.
>>>>>>> Is
>>>>>>> there a link somewhere online that gives instructions on cleaning or
>>>>>>> repairing them?
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On 7/12/2011 3:05 PM, Jim Adney wrote:
>>>>>>>>
>>>>>>>> On 12 Jul 2011 at 14:43, SCS Crewcab wrote:
>>>>>>>>
>>>>>>>>> I'm trying to diag a prob with my fuel pump on a '71 FI Squareback.
>>>>>>>>> I'm
>>>>>>>>> not getting a ground on the neg side of the plug that connects to
>>>>>>>>> the
>>>>>>>>> pump. Where does this terminal connect to ground?
>>>>>>>>
>>>>>>>> Both wires come thru a grommet in the firewall, under the left side
>>>>>>>> fo the dash. The red one goes to the fuel pump relay and the brown
>>>>>>>> one goes to a ground connection. They are easy to follow once you
>>>>>>>> find that grommet and the 2 wires.
>>>>>>>>
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>>>>>
>>>>
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>>
>>
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