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I replaced my air conditiong compressor and the alternator…

Customer Question
I replaced my air...

I replaced my air conditiong compressor and the alternator went bad. I raplaced the alternator also and the car will not start. I can jump start it, but as soon as I turn off the car, it won't start again.

Mechanic's Assistant: Have you tested the battery? Do you hear a clicking when you try and start the car?

The battery is only 2 years old and has a full charge

Mechanic's Assistant: What is the model/year of your Lexus?

2005 RX330

Mechanic's Assistant: Are you fixing your vehicle yourself? What have you tried so far?

I have replaced the compressor and alternator.

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

Thats pretty much the only problem I have

Submitted: 11 months ago.Category: Lexus
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Answered in 3 hours by:
8/17/2017
Lexus Mechanic: Greg, Import tech replied 11 months ago
Greg
Greg, Import tech
Category: Lexus
Satisfied Customers: 7,477
Experience: 17 year shop owner
Verified

Hi, I'm Greg (Indy-Tech).
Welcome to JustAnswer. I'm reviewing your question now, and will post back with your reply ASAP.
Rgds Greg.

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Lexus Mechanic: Greg, Import tech replied 11 months ago

Do you have a voltmeter to do a few voltage checks .

Greg

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Customer reply replied 11 months ago
I already checked the voltages. They are fine.
Lexus Mechanic: Greg, Import tech replied 11 months ago

Okay good , what is the voltage of just the battery .

What is the voltage of the battery when the engine is running .

Greg

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Customer reply replied 11 months ago
About 14 volts
Lexus Mechanic: Greg, Import tech replied 11 months ago

With engine running 14 volts good,

what is the voltage when you try to start the engine .

What does the voltage drop to when trying to crank .

Greg

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Customer reply replied 11 months ago
It was about 10 when it could start. The only way I can start it is by jump starting it with one of the jumper cables attached to a bolt in the fuse box.
Lexus Mechanic: Greg, Import tech replied 11 months ago

Let me understand this jump start from another vehicle ?

or jumping from the battery to the fuse box .

GREG

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Customer reply replied 11 months ago
Jumping from another vehicle to the fuse box. That's the only way it will start. No power is going from alternator to battery.
Lexus Mechanic: Greg, Import tech replied 11 months ago

Okay then you have a problem with the connection on the battery or the battery cable is bad .between the battery and the main fuse box is a connection issue .

Check voltage on the centre of the battery post then check the voltage on the battery clamps to confirm battery and clamp connection .

But looks like a typical battery connection or a bad battery cable .

Rgds Greg

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