V70 GL L5-2.4L VIN 55 B5254S (1998)
Intake Air Heater: Testing and Inspection
NOTE: Check attachment and seal of:
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preheating hose
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air filter housing
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inlet hose
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air intake (in front of radiator)
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fresh air hose
1. Check air cleaner (ACL) and remove throttle housing:
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Remove the air filter.
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Check inside ACL, clean if necessary.
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Undo air duct connections.
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Carefully pull housing from mountings.
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Remove throttle body (TB) from ACL by pressing two snap fasteners and pulling housing at the same time.
2. Check throttle function:
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bearings and mountings
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spring
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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:
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Assemble the TB.
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Install ACL in car.
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Connect all hoses and connectors.