For the pull, the suspension and steering systems should be inspected by an alignment specialist. Typical causes are worn lower control arm bushings, tie rod ends, ball joints, and worn engine mounts that let it sag. That causes a change in the angles of the half shafts which leads to "torque steer". That's where the car tends to go in different direction based on the load on the engine. One clue the mechanic will look for on his road test is whether the steering wheel changes position or stays straight when the pull occurs.
For the heat problem, does it blow cold air or does it not blow any air? If the air is cold, and there is a temperature gauge on the dash, does it read in the normal range after the engine is warmed up? If not, suspect a defective thermostat. If it does read normally, feel the two small heater hoses going to the firewall. They should be too hot to hold onto for very long. If they are, suspect a problem with the temperature blend door in the heater box. If the hoses are cool, suspect a plugged heater core. They can usually be flushed out with a garden hose.
If no air is blowing but you can hear the fan running, a mode door or its actuator is broken. If you can't hear the fan, common causes are a defective fan motor, motor resistor assembly, or the computer on cars with computerized controls.
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Wednesday, November 24th, 2010 AT 5:24 PM
