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2003 3.0L Smog pump troubleshooting

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Old May 18, 2013 | 07:27 AM
  #1  
jpjmustang's Avatar
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From: Saint Louis, MO
Default 2003 3.0L Smog pump troubleshooting

There is a couple of threads on smog/air pumps.

I have the code for the air pump, but I dont have the vacuum cleaner noise

what is he best way to troubleshoot the pump

JPJMustang

 
Old May 18, 2013 | 07:36 AM
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You can disconnect the wiring harness from the pump and then apply a constant 12v to the pump to see if it turns on. You'll be able to hear it / feel it turn on when you do this. If you don't, you know that your pump is not working completely.

Are you getting error codes that state insufficient flow to banks 1 and 2?
 
Old May 18, 2013 | 07:50 AM
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I had Oreilly run the codes (OBDII)

It shows codes for bank 1 and 2

JPJMustang
 
Old May 18, 2013 | 06:57 PM
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I asked because if it was just one bank, then it may not be the pump that is at fault. I'm willing to bet that your secondary air pump completely failed. Which is odd because usually when they're on their way out you hear it.
 
Old Jun 10, 2013 | 07:17 PM
  #5  
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It might have made noise - It is the wife's car

Ill try the 12v method this weeked when i get home

Im a boiler inspector and Im on the road most of the time

JPJM
 
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