The rubber section of an automatic transmission cooler line may develop a fluid leak . In some cases the leaking section of hose can be replaced. In others, the complete cooler line must be replaced to correct this concern.
Problems for specific Chevrolet Lumina years:
Car problem reports
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Most reported 1999 Chevrolet Lumina problems
Driver side window motor/master window switch may fail
It is common for the driver side window motor and master window switch to fail.
Mass Air Flow Sensor May Fail
The mass air flow (MAF) sensor may fail, resulting in drivability issues and/or illumination of the Check Engine Light.
Coolant Loss and/or Engine Overheating
A coolant leak may develop form the Intake manifold gasket causing overheating complaints. The coolant leak may be internal allowing coolant to mix with the engine oil, this condition can result in internal engine damage.
Engine Overheating Due to Broken Thermostat Housing
On vehicles with a 3.1L engine, the front motor mount may break, causing the engine to jump while shifting gears or accelerating; this can break the water neck (thermostat housing) resulting in coolant loss and engine overheating.
Multiple oil leaks on 3.1L engine
On the 3.1L engines, oil leaks from the O-ring on the oil pump drive, the front crank seal, the oil pan gasket, and the oil sending unit are quite common.
Power steering pump may leak and require replacement
It is common for the power steering pumps to leak fluid.
High pressure power steering hoses can leak fluid
It is common for the high pressure power steering rubber hoses to leak. Our technicians recommend replacing leaky rubber hoses to prevent the loss of power steering.
Loss of Power Steering due to Leaking Steering Rack
It is not uncommon for the power steering rack to develop a fluid leak requiring replacement of the rack assembly. Loss of power steering fluid may also cause an abnormal noise and damage to the power steering pump
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Heater core may become plugged and cause heater problems
The heater core in this vehicle is known to get plugged, which prevents the coolant from flowing freely, causing problems with the heater.