2001 Tahoe 5.3 L P0343 Camshaft Position Sensor Circuit High Input - Sensor location - Chevrolet Forum - Chevy Enthusiasts Forums

Go Back   > >
Log In 

Tahoe & Suburban The power, space, and brutal towing ability make the Tahoe and its longer sibling, the Suburban, arguably the best full size SUV's on the market today.

2013 Chevrolet Suburban
Platform: GMT 400, 800, 900

Reply
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 06-20-2010, 07:39 PM
CF Beginner
Thread Starter
 
Join Date: Jun 2010
Location: Azle TX
Posts: 6
Default 2001 Tahoe 5.3 L P0343 Camshaft Position Sensor Circuit High Input - Sensor location

2001 Tahoe 5.3 L kicking a P0343 code.

I found the oil sensor is on the drivers side back of motor and the camshaft sensor is on the passenger back side of the motor. The oil pressure sensor is a taller unit with the connector on the top, not on the side.

I couldn't see them but did slide my camera back there to take a photo with the camera stuffed almost against the firewall on the passenger side of the engine.

If you feel behind the intake on the passenger side, the tranny breather tube is a good landmark to use. Reach a little further and you'll find the 10 mm bolt holding the cam sensor in. A 1/4 drive ratchet with the shallow 10 mm socket will fit back there to get the bolt out. It took a few minutes to pry and wiggle the sensor out. The new one slid most of the way in and putting the bolt through the metal tab that holds the sensor in was relatively easy.

I had to climb up and was laying across the air filter box in order to reach behind the engine. Someone with large hands or a short reach will probably be challenged with this task.

Good luck!
Attached Thumbnails
2001 Tahoe 5.3 L P0343 Camshaft Position Sensor Circuit High Input - Sensor location-camsensor2.jpg  
Reply With Quote
  #2  
Old 06-27-2010, 10:43 AM
CF Beginner
Thread Starter
 
Join Date: Jun 2010
Location: Azle TX
Posts: 6
Default

Had a "no start" but no fault code situation after replacing the sensor that cleared after reaching back and moving the pigtail. I've picked up an replacement pigtail. Looks like the the easiest way to get to this thing is pull the intake manifold since the pigtail goes into the loom back where the oil sensor is.
Reply With Quote
  #3  
Old 06-27-2010, 12:20 PM
CF Beginner
Thread Starter
 
Join Date: Jun 2010
Location: Azle TX
Posts: 6
Default

AC Delco P420 is what the parts store gave for the replacement pigtail. But it doesn't fit the sensor due to the plastic guide between two of the pins. All three wires are solid gray. Also the retaining clip isn't compatible with the one on the sensor (won't hold it on).

The parts store confirmed the sensor shows a little tab between two of the pins.
The parts store is calling AC Delco tomorrow to see if the part was mispackaged or miscataloged.

Glad I checked this before chopping off the old pigtail.

I noticed that the little purple rubber gasket falls off the old pigtail pretty easily too so maybe that contributed to the bad connection. The old sensor pins look clean and shiny though. I think the problem is where the wires contact the pins on the pigtail.

Hope ya'll don't mind me replying to myself, but figured this info will save a few of you some time. Maybe someone will have a better or easier way to remedy this issue.

I've attached a photo of the old sensor and apparently wrong pigtail.
Attached Thumbnails
2001 Tahoe 5.3 L P0343 Camshaft Position Sensor Circuit High Input - Sensor location-camsensor-connector.jpg  
Reply With Quote
  #4  
Old 06-28-2010, 01:31 PM
CF Beginner
Thread Starter
 
Join Date: Jun 2010
Location: Azle TX
Posts: 6
Default

AC Delco mis-cataloged the pigtail. The correct number is PT1604.
Reply With Quote
  #5  
Old 07-15-2011, 11:14 PM
CF Beginner
 
Join Date: Jul 2011
Posts: 1
Default

Thanks Dag... I have an avalanche with the same problem.... seems impossible to get back to the CPS
Reply With Quote
  #6  
Old 03-16-2012, 08:44 PM
CF Beginner
 
Join Date: Mar 2012
Posts: 1
Default Thanks!

Had the same problem on my 2001 Tahoe. Just picked up the right parts. Fixing it in the morning.

Thanks for the helpful post!
Rick
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
8.1L Camshaft Position Sensor Location Phill S. Silverado & Fullsize Pick-ups 1 01-01-2013 03:10 AM
p0405 low volts egr circuit, need schematic or experience on 12v feed circuit wolfdogg Equinox 14 09-03-2012 02:06 PM
2006 Impala Ltz Camshaft Position Sensor kfortman Impala 1 07-20-2010 10:59 PM
camshaft position sensor boydbl General Tech 2 07-10-2007 04:59 PM
camshaft position sensor supplier? derry Beretta, Corsica, & pre-1995 Lumina 0 06-09-2007 04:26 PM


Tags
2001, 53, 53l, cam, camshaft, chevy, crankshaft, engine, high, liter, located, position, presure, sensor, suburban, tahoe

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 02:54 AM.