My emissions light is on and my 2007 Cadillac CTS is jerking and rattling

Tiny
DCOLBERT
  • MEMBER
  • 2007 CADILLAC CTS
  • 73,939 MILES
My emissions light is on and my 2007 cadilac cts is jerking and ratling.I put fuel injector cleaner in it but that didnt work, it seemed to help at first but the problem came back. When im on the freeway it doesnt seem to have a problem but when on the street it gets kinda bad & the rattling and jerking begin.
Thursday, May 30th, 2013 AT 7:04 AM

1 Reply

Tiny
SEANGRANT00
  • MECHANIC
  • 334 POSTS
First thing I would do is get the computer (OB2) scanned. This will make it easier to help in the diagnosis. Most auto part stores will do this for free. When you get the codes, write them down and let me know what they are. There are many problems that could create this symptom and without speculating for hours let's try this out first and I'll be happy to help you out in finding the problem.

Thanks look forward to your reply

Sean
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Tuesday, July 2nd, 2013 AT 10:20 PM

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