Heater motor only works on high speed when I "hot wire" it. replaced the blower motor but still the same results. small 4 cyl. automatic, 2 wheel drive
The blower motor module is burn.or defect replace it and check for bad terminals at module
SOURCE: heat/ac blower motor works on high. intermittent on other speeds.
Check the blower resistor pack - usually located in the heater air ducting in the blower fan airflow. Check for loose connections and open circuit resistors on the unit.
If speed 4 works always, its unlikely to be the blower motor ground connection.
SOURCE: how do I install starter for 2000 GMC Sonoma
e
Removal & Installation
2-Wheel Drive - 2.2L Engine
To install:
Negative battery cable
Front exhaust pipe, if necessary for access
Starter heat shield, if equipped
Brace rod from the front of the engine and the bell housing
Drivers side wheel to access the starter motor wires and the
starter motor attaching bracket-to-engine bolt through the opening in
the wheel well
Wires from the starter solenoid
Attaching bracket-to-engine mount bolt
Starter-to-engine block bolts. When removing the last bolt, be
sure to support the starter to keep it from falling and possibly
injuring you.
Starter and shims (if equipped) from the vehicle
Bracket from the starter assembly, if equipped
Fig. Starter motor and related components - 2.2L engine
Bracket to the starter, if removed. Tighten the bracket nuts to 97 inch lbs. (11 Nm).
Starter and shims (if equipped) into position in the vehicle and thread one of the retaining bolts to hold it in position.
Bracket-to-engine mount bolt (loosely), if equipped
Starter mounting bolt, then tighten all mounting fasteners to 32 ft. lbs. (43 Nm)
Wiring to the solenoid
Brace rod and tighten the retainers
Front exhaust pipe and tighten the fasteners, if removed
Starter heat shield, if equipped
Driver-s side wheel, if removed
Negative battery cable
Hope helped with this (remember rated this help) Good luck.
SOURCE: Blower on heater works sometimes, sometimes it
Sounds like the blower resistor. It will either be located in the engine compartment outside the motor or inside the vehicle inside the blower motor cover. It could also as well be selector switch
Its
faulty blower motor resistor. The low and medium speed on blower motor is
controlled by resistor and its actual speed is high. So because resistor is not
working, blower motors actual speed which is high is working.
It
can be faulty blower motor or faulty blower motor resistor. Get the blower
motor inspected. If it's faulty it has to be replaced.
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For
blower motor testing and replacing, check the link below: ----
http://repairhelpcenter.blogspot.in/2012/02/blower-motor-replacing-for-all-vehicles.html
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These will help.
Thanks.
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