Volkswagen Golf Service & Repair Manual: Removing and installing suction-jet pump
| On vehicles with four-wheel drive the fuel tank is divided
into a left and a right chamber. A suction-jet pump
-2- is used for delivering fuel
from the left fuel tank chamber to the baffle housing of the
fuel delivery unit -1- on the
right. |
| Function of suction-jet pump |
| The suction-jet pump operates according to the principle of
fluid entrainment: the stream of fuel from the electrical fuel
pump is passed through a nozzle in the suction-jet pump, and is
thus accelerated. The accelerated stream of fuel draws off the
surrounding fuel and delivers it to the baffle housing of the
fuel delivery unit. |
| Faults caused by defective suction-jet pump |
 Note
| Risk of breakdown due to defective suction-jet pump. |
| If the suction-jet pump is defective, the engine can stop
due to fuel starvation when the tank is still
1/4
full. |
| If the suction-jet pump does not work, approx. 15 litres of
fuel (1/4
of tank capacity) remain in the left chamber of the fuel tank
and cannot be extracted by the fuel delivery unit. |
| If the engine stops due to fuel starvation with the tank
filled up to about 1/4,
proceed as follows: |
| – |
Check fuel pump with → Vehicle
diagnostic tester. |
| If fuel pump is OK, but no fuel is delivered: |
| – |
Refill fuel tank with approx. 5 litres of fuel. |
| – |
The suction-jet pump cannot be renewed individually. Renew
fuel tank
→ Chapter. |
|
|
|
Special tools and workshop equipment
required
Removal wedge -3409-
Procedure:
...
Other materials:
Assembly overview - luggage compartment side trim, estate
Note
The illustration shows the luggage compartment side trim on the
left side. The right-hand side is similar (mirror image of left-hand
side).
1 -
Luggage compartment side trim
Removing and installing
→ Chapter
...
General repair notes
To ensure flawless and successful gearbox repairs, the
greatest care and cleanliness as well as the use of good and
proper tools are essential. Of course, the basic rules for
safety also apply during repair work.
A number of genera ...
Removing and installing electronics box (E-box)
Removing
–
With ignition switched off, disconnect earth cable from
battery
→ Chapter.
Diesel engine
–
Remove engine control unit and lay to one side with
...
© 2016-2024 Copyright www.vwgolf.org
Removing and installing fuel pump control unit -J538-