2001 Chevy Malibu Battery Connectors

YOU MAY WANT TO CHECK UR STARTER OUT IT MAY HAVE BAD WINDINGS

It's not the pcm you would clean but the 2 or 3 electrical connectors to the pcm. First take the battery negative terminal off so the battery is not connected. (Even with the key off, there is electricity going to the pcm-this is why you need to disconnect the battery.)
Now you can safely pull off the connectors to the pcm. Buy a spray can of CRC brand electronic cleaner-very inexpensive- and spray inside the connectors and again on the plugs on the pcm that the connectors plug into. This is a fast drying electrical contact cleaner, dries in about 5-10 minutes. Now plug the connectors back onto the pcm, hook up the battery, and see if the cleaning did any good. If there was any corrosion on the electrical pins, this will solve that.

Maybe the deep discharge on battery trashed it and now it will not take a charge. Sure the charger is working? Give it enough time to charge the battery - at least five hours.

Clicking sounds when starting indicates low voltage. This can be a due to a battery that is no longer holding a full charge or a problem with loose and / or corroded cables / connectors at the battery posts, ground, solenoid or starter. Remove cable connectors that have corrosion / white flakey powder one at a time and clean with 25% baking soda / 75% water to neutralize the acid causing the corrosion - by scrubbing it with an old tooth brush dipped in the mixture. Then clean posts and connectors with a wire brush. Check to be sure any battery caps are on tight and then wet the entire top of the battery with the mixture to neutralize the acid on the battery, too. Do not allow the mixture to enter the battery. Hose off everything when done. Check all the other connections and clean / tighten as needed. Either charge the battery or jump it to start the engine. If the battery is good, the alternator should charge the battery and keep it charged for you.

Could be the lenses that become turnished over time, it could be the bulbs that may need replacements. Electrically could be corrosion in the connections which would affect voltage supply. To find out if you have a voltage drop you are going to need a meter and measure voltage from the battery positive to the positive terminal on the headlight while the lights are on if you have excessive voltage drop you may have to repair wires or connectors.

Usually means the starter has open windings or a short. Remove the starter and take to parts store for testing. Please let me know if you have more questions.

1. Remove or disconnect the following:
   
   Negative battery cable Inlet hose from the intake manifold and reposition the air cleaner box, on high output engines only Starter electrical connectors Starter-to-engine bolts Starter

Fig. Starter mounting-2002 Neon shown, others similar

To install:

1. Install or connect the following:
   
   Starter and torque bolts to 40 ft. lbs. (54 Nm) Starter electrical connectors Intake manifold inlet hose on high output engines Negative battery cable

3.3L Engine

1. Disconnect the negative (-) battery cable. Raise and safely support the front of the vehicle on jackstands. Fig. 1: Disconnect the negative battery cable
   
   
2. Remove the three bolts attaching the starter to the engine/transaxle. Fig. 2: Remove the three starter mounting bolts
   CAUTION
   Be careful when removing the starter motor mounting bolts, the motor can be quite heavy. Personal injury could result if the starter motor falls from its mounting position.
   
3. Remove the starter from the the transmission housing. Position the starter to gain access to the wiring connectors.
4. Remove the battery positive cable nut from the starter and remove the cable. Fig. 3: Remove the battery positive cable nut from the starter and remove the cable
   
   
5. Disconnect the push on solenoid connector.
6. Remove the starter from the vehicle. To install:
   
7. Clean all wire terminals of dirt, grease or corrosion.
8. Attach the electrical wire connectors and secure with the mounting nuts. Tighten the starter solenoid B+ nut to 90 inch lbs. (10 Nm) and the solenoid wire-to-starter nut to 55 inch lbs. (6 Nm).
9. Hold the starter motor in place, then secure in place with the 3 attaching bolts. Tighten the bolts to 40 ft. lbs. (54 Nm).
10. Lower the vehicle.
11. Connect the negative (-) battery cable.

3.5L Engine

1. Disconnect the negative battery cable.
2. Raise and support the vehicle.
3. For easier servicing, do not remove the wiring from the starter motor at this time.
4. Remove the three bolts attaching the starter to the engine. Fig. 4: Remove the three bolts attaching the starter to the engine
   
   
5. Remove the starter solenoid assembly from the transfer housing. Position the starter to gain access to the wiring connectors.
6. Remove the battery positive cable nut from starter and remove the cable.
7. Disconnect the push on solenoid connector.
8. Remove the starter from the vehicle. To install:
   
9. Clean all wire terminals of dirt, grease or corrosion.
10. Attach the electrical wire connectors and secure with the mounting nuts. Tighten the starter solenoid B+ nut to 90 inch lbs. (10 Nm) and the solenoid wire-to-starter nut to 55 inch lbs. (6 Nm).
11. Hold the starter motor in place, then secure in place with the 3 attaching bolts. Tighten the bolts to 40 ft. lbs. (54 Nm).
12. Lower the vehicle.
13. Connect the negative battery cable.

Could just be a faulty temperature sensor. Could also be faulty ground. check battery to motor and battery to body ground. Also check motor to body ground strap foe corrosion under bolt

HEATER CORE REMOVAL AND INSTALLATION 1997–01 Models BONNEVILLE AND LESABRE

1. Disconnect the negative battery cable.
2. Drain the cooling system into a clean container for reuse.
3. Remove or disconnect the following:
   • Heater hoses from the heater core
   • Right sound insulator
   • All necessary electrical connectors and remove the instrument panel compartment
   • Temperature valve actuator
   • Electrical connector and remove the HVAC programmer
   • Heater core cover-to-heater assembly screws and the cover
   • Heater core-to-heater assembly screws and the heater core Fig. 1: View of the heater hoses and clamp positions — 1997–01 Bonneville and LeSabre
     Fig. 2: View of the heater core cover — 1997–01 Bonneville and LeSabre
     
   To install:
   
4. Install or connect the following:
   • Heater core and the heater core-to-heater assembly screws, then, tighten the screws to 12 inch lbs. (1.4 Nm)
   • Heater core cover and the cover-to-heater assembly screws, then, tighten the screws to 12 inch lbs. (1.4 Nm)
   • HVAC programmer and connect the electrical connector
   • Temperature valve actuator
   • Instrument panel compartment and connect any necessary electrical connectors
   • Right sound insulator
   • Heater hoses to the heater core
5. Refill the cooling system.
6. Connect the negative battery cable.
7. Operate the engine to normal operating temperatures; then, check the climate control operation and check for leaks.

clean all corrosion off, use baking soda and water and tooth brush, tighten then loosen fasteners slowly to remove use silicone lubricant,