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-   -   DIY- How to replace the Alternator on a '99 RX300 (https://lexusforum.com/forum/lexus-rx-16/diy-how-replace-alternator-99-rx300-38692/)

lexicon Aug 3, 2011 01:20 PM

DIY- How to replace the Alternator on a '99 RX300
 
Hello again everybody!

I replaced the alternator on a '99 RX300 for a customer yesterday so I would like to share an elemental write-up on the procedure for this job:

1) Remove or disconnect the following:

Alternator electrical connectors
Wiring harness from the clip
Pivot bolt
Plate washer
Adjusting lockbolt
Drive belt
Alternator

2) Install or connect the following:

Alternator
Drive belt. Tension the belt to 170–180 lbs. for a new belt or 95–135 lbs. for a used belt.
Adjusting lockbolt. Tighten the bolt to 13 ft. lbs. (18 Nm).
Plate washer
Pivot bolt. Tighten the bolt to 41 ft. lbs. (56 Nm).
Wiring harness from the clip
Alternator electrical connectors

**Reference materials: 1999 RX300 Alternator diagram


If you would like me to elaborate on any steps then just let me know! :cool:

Pancho Feb 19, 2024 02:59 PM

Charging system for a 1999 Lexus RX300 minivan, replaced the alternator and main fuse
 
I changed the main fuse breaker and alternator and it's still no charging , anything else I need to change ?
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