Fuel Pump, Pressure Regulator And Fuel Lines (System Pressure); Connect Pressure Gauge; Start Fuel Pumps; If Fuel Pumps Don't Start - Volvo 240 1989 Service Manual

System pressure
Fuel system LH2.4 - 240
Fuel pump, pressure regulator and fuel lines (system pressure)
" 30
85
I
'~.IIII,J
D1
Connect pressure gauge 5011
Hold a paper towel under the fuel line to absorb any
fuel spill when the fuel line is disconnected.
Connect gauge between fuel line and distribution
pipe. Use hose 5116 and nipple 5265.
Block the free end of the gauge hose with plug 5266.
Set the gauge cock in position 1 (pointing to hose
511 6) .
D2
Start fuel pumps
Remove panel under ri ght side of instrument panel.
Remove system relay.
Disconnect syslem relay connector. Connect an
eleclrical lead between terminals 30 and
87/2.
The fuel pumps should start. To check if the main luel
pump is operating, remove cap from the filler pipe and
listen.
II fuel pumps don'I start
Remove lead between tenninals 30 and 87/2.
Ched< for voltage atlermlnal3O. Iflhere is none,
check lead between relay and battery .
Connect an electrical lead between terminals 30
and 87/2 on Ihe relay base . Pumps should now
start. If nol, check lead between pump and re­
lay.
Check lead between 87/1 and 85 for breaks . Use
ohm meIer or buzzer.
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