Rep Power: 0

Hi Everyone,
I have a 2004 Civic, I just finished replacing the alternator. I reconnected the battery and started it up to test it and have a small amount of white smoke about 20 second later although it seems to be coming from the exhaust on the left side of the alternator. I do get an odd burning smell but can't identify it. Both of the belts on the right side are turning.

I had all the classic signs of a bad alternator when it went out, flickering headlights, incorrect readings on the voltmeter, failing to charge the battery, etc. I don't believe anything was wrong with any other part of the engine but I suppose it's possible.

It was the original alternator, so I had to use PB penetrating spray on almost every bolt since some had never been removed. I tried to be careful with shop rags but there is no doubt that penetrating spray and WD-40 have sprayed on things it shouldn't have.

As a girl, this was a major feat to replace this alternator, so I am going to go cry for a hour, eat some ice cream and then will be back later to see if you have ideas..

What could I have screwed up? How do I test it and how much do I need to worry about the car starting on fire while I try to diagnose my problem?

Thank you so much for any insights you can offer.

 
Rep Power: 222

Probably just overspray from the pb blaster burning off the exhaust

 
Rep Power: 222

And triple check all the alternator bolts are tight

 
Rep Power: 0

Is it better to burn it a few minutes at a time or one longer session? How long would you guess it would take to burn off?

Should I check anything electrical before attempting a burn off session? Will I need a fire extinguisher handy?

And...thank you kind internet stranger for replying.

 
Rep Power: 367

Make sure you do this. Loose bolts will cause bad ground and fry your ECU

The smoke is likely the PB Blast burning off as mentioned above

 
Rep Power: 222

Just let it run in the driveway with the hood up and the car jacked up so you can see everything and keep an eye on it for 10-15 mins. As long as you don't see heavy smoke you're fine