All warning light came on loss of power and shifting

TBOMB

MEMBER
2002 OLDSMOBILE INTRIGUE
3.6L
6 CYL
2WD
AUTOMATIC
91,000 MILES

First I lost gauge all dropping to bottom, the all dash lights come on all, headlights went dim, and transmission started acting funny not shift proper either over shifting or not shifting. I made it home about five minutes later shut the car off and tried restarting I got nothing but two clicks lights would still work but dim like a dead battery. I checked the voltage on battery it was 11.46v. I will take alternator to get tested tomorrow. Any thing else it could be or I should check? Thank you

1 Reply

JACOBANDNICKOLAS

MECHANIC
109,867 POSTS

Welcome to 2CarPros.

Chances are the battery has failed. Have it load tested at a parts store or follow this link:

https://www.2carpros.com/articles/car-battery-load-test

Before load testing, an attempt at recharging it should be made. The battery could be dead due to an alternator problem.

https://www.2carpros.com/articles/how-to-charge-your-car-battery

Here is what I suggest. Charge the battery (often times a parts store will do it for you) and load test it at home or at a parts store. If the battery fails, replace it. If it doesn't fail, then we need to check the alternator which is easy to do with a multi meter or volt meter. But, the engine needs to be running.

Follow this link to confirm the alternator is working properly. If the engine can't be started, then you will need to remove the alternator and have it bench tested. However, a good battery should start the engine.

https://www.2carpros.com/articles/how-to-check-a-car-alternator

I would recommend testing the alternator regardless of the battery.

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Here is a link that shows in general alternator replacement:

https://www.2carpros.com/articles/how-to-replace-an-alternator
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Here are the directions specific to your vehicle. The attached pictures correlate with the directions.

PROCEDURES
GENERATOR REPLACEMENT

REMOVAL PROCEDURE

Pic 1

The Delphi AD237 (KG7) 125 ampere generator is serviced as a complete unit only.
1. Disconnect the negative battery cable.
2. Remove the battery tray.
3. Remove the drive belt.
4. Remove the engine cooling fan assembly.
5. Remove the water inlet housing.
6. Remove the outboard generator bolt
7. Loosen the inboard generator bolt
8. Remove the idler pulley bolt and the idler pulley.

Pic 2

9. Disconnect the electrical connector from the generator.
10. Remove the protective boot from the generator output BAT terminal.
11. Remove the generator output BAT terminal nut.
12. Remove the generator output BAT terminal wire from the generator.
13. Remove the generator.

INSTALLATION PROCEDURE

Pic 3

1. Position the generator to the engine.
2. Install the generator output BAT terminal wire to the generator.

NOTE: Refer to Fastener Notice in Service Precautions.

3. Install the generator output BAT terminal nut.

Tighten
Tighten the nut to 20 N.m (15 lb ft).

4. Install the protective boot to the generator output BAT terminal.
5. Connect the electrical connector to the generator.

Pic 4

6. Install the outboard generator bolt into the generator housing.
7. Install the generator on the inboard generator bolt and finger tighten the outboard bolt.
8. Install the idler pulley and idler pulley bolt.
9. Tighten the bolts in the order described. The following is a mandatory torque sequence:
9.1. The idler pulley bolt.

Tighten
Tighten the bolt to 50 N.m (37 lb ft).

9.2. The inboard and outboard generator bolts.

Tighten
Tighten the bolts to 50 N.m (37 lb ft).

10. Install the water inlet housing.
11. Install the engine cooling fan assembly.
12. Install the battery tray.
13. Install the drive belt.
14. Connect the negative battery cable.

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Let me know what you find or if you need anything.

Take care,
Joe

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