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Codes showed up after oil change

Tiny
SHESHIREKAT
  • MEMBER
  • 2001 OLDSMOBILE INTRIGUE
  • 3.5L
  • V6
  • FWD
  • AUTOMATIC
  • 93,000 MILES
I recently took my car in for an oil change, the plug was stripped so my local oil change place advised me to take it to the dealership to get it done as they would have a replacement on hand. Immediately after the oil change I had several waning lights show up. The first was my traction control and PCS lights then my service engine soon and then my ABS. I took it back to the dealership and they scanned it, for a fee of course. They said it had nothing to do with them, of course, and advised me of the following codes, P1122, P1189, P1811, U1153, C0035. I have also had issues with the signals working intermittently. They did not actually look at anything but the diagnostic, yet they "are very concerned" about P1811 & C0035 and gave me a guesstimate of about $1200 to fix it. I have noticed no difference in driving or handling of the vehicle. Is it possible that the codes are inaccurate? Thoughts or opinions please.
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Monday, May 26th, 2014 AT 7:02 AM

3 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Have your battery checked for condition including load test a low battery will give false codes. Also make sure your terminal endsare clean as it can do the same thing if fan belt and tensioner have not been replaced yet do so as that can give you low voltage at idle.
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Monday, May 26th, 2014 AT 8:36 AM
Tiny
SHESHIREKAT
  • MEMBER
  • 2 POSTS
Is it possible or probable that something occurred during the oil change to instigate all of this or is it likely just a coincidence? They went straight from telling me $1000+ for the tranny work to saying my car is old and not worth repairing to a pitch about their "quality used cars available".
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Monday, May 26th, 2014 AT 10:11 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Probably coincidenece but also a dealer problem as well
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Tuesday, May 27th, 2014 AT 5:54 AM

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