FIAT Uno 45 - Manual (Page 209)

31 Unscrew and remove the two
turbocharger mounting bracket bolts.
32 Referring to Fig. 13.67, loosen off the
retaining clip and detach the air hose from the
heat exchanger and the oil return pipe from
the turbocharger (to sump).
33 Working from above, undo the
turbocharger mounting bracket bolts.
34 Unscrew and remove the coolant
pipe-to-pump retaining bolts. The
turbocharger can now be removed from above
by withdrawing it together with the exhaust
manifold from the engine compartment.
35 Locate and support the exhaust manifold
in a vice. Fit protector clamps to the jaws of the
vice to avoid possible damage to the manifold.
36 Note the orientation and fitted position of
the turbocharger mounting bracket, then
unscrew the retaining nuts and detach the
bracket.
37 Undo the retaining nuts, separate and remove the exhaust manifold from the
turbocharger.
38 The turbocharger and wastegate valve are
not repairable and must therefore be renewed
as a complete unit. This being the case,
remove the following ancillary items from the
turbocharger unit before renewing it.
a)
Loosen off the retaining clip and remove
the air outlet hose from turbocharger.
b) Undo the two retaining bolts and remove
the oil return hose union.
c) Unscrew the union and bolt and coolant
inlet pipe.
d) Undo the retaining nuts and remove the
turbocharger-to-exhaust manifold
connector.
39 Where applicable, always use new
gaskets and ensure that the mating faces are
clean before refitting the ancillary components
to the turbocharger.
Intercooler -
removal and refitting
¡
40 The intercooler is mounted behind the
left-hand side of the front bumper/spoiler (photo).
41 Disconnect the air ducts from the intercooler.
42 Unscrew the mounting bolts and lift the
intercooler from the car.
43 Refitting is a reversal of removal (photo).
Injector cooling fan -
removal and refitting
¡
44 This unit is located on the left-hand side at
the front of the car. It can be accessed for
removal from above, in the engine compartment.
45 Detach and remove the air intake duct
from the air cleaner unit to the ECU/airflow
meter.
46 Disconnect and remove the air duct from
the air blower unit.
47 Undo the air blower retaining nuts, withdraw
the unit and detach its wiring connector.
13•84 Supplement: Revisions and information on later models
9F.43 Intercooler mounting bolt (arrowed)
on 1301 cc engine
9F.40 Intercooler location (1301 cc engine) Fig. 13.69 Turbocharger coolant pipe-to-
pump bolt location (arrowed) (Sec 9F)
Fig. 13.68 Turbocharger mounting bracket
bolts removal (Sec 9F)
Fig. 13.67 Disconnect the heat exchanger
air hose and the oil return pipe
(turbocharger-to-sump) (Sec 9F)
Fig. 13.66 Turbocharger mounting bracket
bolts (arrowed) (Sec 9F)
Fault finding - fuel injection system
Difficult starting from cold
Ⅵ Ⅵ Fuel pump fault
Ⅵ Ⅵ Blocked fuel pipe or filter
Ⅵ Ⅵ Supplementary air valve fault
Ⅵ Ⅵ Coolant temperature sensor fault
Excessive fuel consumption
Ⅵ Ⅵ Incorrect mixture setting
Ⅵ Ⅵ Dirty air cleaner element
Ⅵ Ⅵ Coolant temperature sensor fault
Ⅵ Ⅵ Airflow sensor fault
Difficult to start when hot
Ⅵ Ⅵ Choked air cleaner element
Ⅵ Ⅵ Fuel pump fault
Uneven idling
Ⅵ Ⅵ Incorrect mixture setting
Ⅵ Ⅵ Intake system air leak
Ⅵ Ⅵ Throttle position switch out of adjustment
Ⅵ Ⅵ Loose ECU connector