Question about 2004 GMC Sierra 1500 Crew Cab
Did you check the wiring connections for corrosion? Clean them up with some sandpaper so you have bare shiny metal. Do the terminals come off easily or move side to side? Crimp them with a pair of pliers to tighten them up and put them back on. Did you examine the wire harness going to the O2 sensor to check for bare spots in the insulation? Tape up any suspicious spots that appear to have been rubbing and pay close attention to spots where the harness bends. Any of these could reduce the voltage at the sensor . Hope this helps.
Posted on Sep 09, 2010
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Mar 05, 2013 | 2004 GMC Sierra Denali
Dec 23, 2010 | 2004 GMC Sierra
Dec 21, 2010 | 1996 GMC Sierra
Oct 26, 2010 | 2002 GMC Envoy XL
P0141....O2 Sensor Heater Circuit (Bank 1 Sensor 2)
P0142....O2 Sensor Circuit Malfunction (Bank 1 Sensor 3)
P0143....O2 Sensor Circuit Low Voltage (Bank 1 Sensor 3)
P0144....O2 Sensor Circuit High Voltage (Bank 1 Sensor 3)
P0145....O2 Sensor Circuit Slow Response (Bank 1 Sensor 3)
P0146....O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 3)
P0147....O2 Sensor Heater Circuit (Bank 1 Sensor 3)
P0340....Camshaft Position Sensor 'A' Circuit (Bank 1 or Single Sensor)
Sep 20, 2010 | 1997 GMC Sierra
Jun 07, 2010 | 2006 GMC Sierra 1500 2WD
Dec 02, 2009 | 2000 GMC New Sierra 1500
Sep 24, 2009 | 1990 GMC Sierra
Feb 27, 2009 | 2004 GMC Sierra
189 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: