Workshop Repair Manuals

Volvo Workshop Manuals

[PREV PAGE] [NEXT PAGE]

volvo Workshop Repair Guides


V70 GL L5-2.4L VIN 55 B5254S (1998)

Powertrain Management > Fuel Delivery and Air Induction > Intake Air Heater > Component Information > Testing and Inspection

Page 1
background image

Intake Air Heater: Testing and Inspection

NOTE:  Check attachment and seal of: 

-

preheating hose 

-

air filter housing 

-

inlet hose 

-

air intake (in front of radiator) 

-

fresh air hose

1. Check air cleaner (ACL) and remove throttle housing:

-

Remove the air filter.

-

Check inside ACL, clean if necessary.

-

Undo air duct connections.

-

Carefully pull housing from mountings.

-

Remove throttle body (TB) from ACL by pressing two snap fasteners and pulling housing at the same time.

2. Check throttle function:

-

bearings and mountings

-

spring

-

thermostat, cool thermostat (with a spray for example)

Throttle position at various temperatures:

A = greater than or equal to +5°C (41°F) (preheated air only)
B = about +10°C (50°F)
C = less than or equal to +15°C (59°F) (cold air only)

3. Assemble ACL:

-

Assemble the TB.

-

Install ACL in car.

-

Connect all hoses and connectors.

Powertrain Management > Fuel Delivery and Air Induction > Intake Air Heater > Component Information > Testing and Inspection

[PREV PAGE] [NEXT PAGE]