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03 CTS starting problems

Tiny
DAVID1234567
  • MEMBER
  • 2003 CADILLAC CTS
  • 167,000 MILES
I have a 03 cts and sometimes it dosent start it dosent get paulse to the injectors I could spray a little starting fluid and then it will start and run fine And the other day I noticed that it would shift hard up and down but when I turned it off and back on it was fine I have no trouble codes
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Thursday, May 23rd, 2013 AT 6:02 AM

1 Reply

Tiny
SEANGRANT00
  • MECHANIC
  • 334 POSTS
What size engine do you have?

This sounds like it could be a couple different things. It seems to be something related to fuel pressure. Just turn on your ignition to the run position, do not start, and see if you can hear a whine. This would be your fuel pump coming on. It should only be audible for a couple seconds before it shuts off. This is where I would start first.

Sean
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Sunday, December 16th, 2018 AT 9:41 AM

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