2010 Cadillac HELP needed again. - TerrainForum.net: GMC Terrain Forum
  • 1 Post By Colt Hero
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post #1 of 3 (permalink) Old 11-08-2019, 12:18 PM Thread Starter
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Join Date: Sep 2018
Location: Michigan, USA
Posts: 23
Thumbs down 2010 Cadillac HELP needed again.

Hello all,

So since last year I have replaced the following items on my 2010 Cadillac SRX Perf Edition AWD.

Fuel Cap NEW ACDelco from Autozone.

Throttle Body is new BOCH
Purge Valve Solenoid is new BOCH
Vacuum Canister Purge Valve Solenoid is NEW ACDelco from Cadillac Dealer in Dearborn MI and new style wiring harness. Professionally installed.
Since then NO more P0442 code or P0455 code
I was breathing a sigh of relief.
NOW this as of Oct end weeks. :-(
P0442 code is back every 2 or 3 days after using OBD2 scanner to reset code.

New code: P0877-00 Transmission Fluid Pressure Sensor/Switch "D" Circuit Low :-(
Checked Trans fluid with trans on drive/hand brake on, its full and clean looking. Does have a slight hesitation shifting from park to drive on cold start. Same slight hesitation since 1st bought in Oct 2017.

Where do I go from here?? :-(

Last edited by BlackBeauty2010; 11-08-2019 at 12:24 PM.
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post #2 of 3 (permalink) Old 11-08-2019, 05:19 PM
Theta GOD!
Join Date: Jan 2010
Posts: 9,702
To a dealer to trade it in on a new car.

2018 Equinox LT1 1.5 L 4 cyl, AWD, S/R Cajun Red Tintcoat/Black

2010 Equinox LTZ 2.4 L 4 cyl, FWD, S/R Cardinal Red/Black

Last edited by RIT333; 11-08-2019 at 08:15 PM.
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post #3 of 3 (permalink) Old 11-09-2019, 10:58 AM
Theta Guru
Join Date: Feb 2011
Posts: 3,286
Originally Posted by RIT333 View Post
To a dealer to trade it in on a new car.
LOL! But it actually doesn’t sound that dire.

Maybe just a new (or better) gas cap or purge valve for the P0442, OR maybe a smoke test could be performed to find the small leak? That one’s not gonna kill ya.

And the tranny code might only be another sensor ... although not sure how easy to replace on your engine.

Here’s some good info on it:

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2011 Equinox 1LT (new Jan 2011): Summit White / 3.0 L V6 / FWD / Pioneer Stereo / 18" Wheels / 138.2k miles [05-NOV-2019]

2002 Impala 1LT (new Jun 2002): Summit White / 3.4 L V6 / FWD / Cassette-CD Combo /225.5k miles [05-NOV-2019]
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