Question about 2002 GMC Sierra 2500HD

3 Answers

Dtc p0342 I have a 2002 GMC 2500hd 8.1l with a service engine light on. code is P0342. What ic DTC P0342?

Posted by on


3 Answers

  • Level 1:

    An expert who has achieved level 1.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 2 Answers

I just replaced mine on an '04 8.1 vortec. Ez fix. Pd $33 at Rockauto. The sensor in located on the front of the engine &slightly toward the drivers side. Unplug the electrical connector and remove the single nut (10mm). Evenly pull the sensor out from the block. Only use the force needed. Don't yank. Place a oil on the new sensors o ring & reinstall.

Posted on Feb 18, 2013

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 4 Answers

Camshaft Position Sensor Circuit Low Input code, so your probably going to have to replace the sensor which is about $80.00

Posted on Jan 29, 2009

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Go to autozone they have a computer and will test for free they will also tell you what the codes mean ask the guy behind the counter i do it all the time or you can shellout 15 bucks for the book

Posted on Sep 16, 2008

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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.
Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

03 Chevy 2500HD 6.0 Gas I have no power to the 10A fuse for the crank with the key on or off truck does start. A P0342 code keep coming up

code p0342 refers to cam shaft position (CMP) sensor A bank 1 --low input===causes--wiring short to ground---CMP sensor---ECM
Check for wiring shorting out on the engine /body, replace the cam sensor on bank 1

Jan 31, 2015 | Cars & Trucks

1 Answer

My 2007 2500HD Duramax 4 wheel drive Hi or Lo doesn't engage. The "Service 4 wheel drive" light comes on. No noises when trying to engage. Replaced the actuator, but no difference. Also sometimes when

The service 4x4 light coming on indicates problem with the system an DTC'S - diagnostic trouble codes are stored . Before replacing parts have a qualified repair shop do diagnostic's . ! Guessing an replacing parts on electronically controlled systems never fixes cars.
Do you know what DTC'S are ?
DTC B0775
DTC B0780
DTC B0785
DTC B0790
DTC B2725
DTC C0306
DTC C0379
DTC C0387
DTC C0396
DTC C0550
DTC C0569
DTC C0896
DTC P2160 or P2161
Which transfer case does it have ?
Transfer Case - BW 4485-NR3
Transfer Case - MP 1222/1225/1226-NQG
Transfer Case - MP 1625/1626-NQF
Transfer Case - MP 3023-NQH
Transfer Case - NVG 261-NP2

Sep 02, 2017 | Cars & Trucks

2 Answers

Service Engine Soon Light has come on

Your going to have to get the Envoy PCM scanned for the DTC codes to address the issue. There are just to many things that can cause your Check engine light to come on. It can range from a faulty gas cap to a faulty O2 sensor.

Good luck and keep us posted, thank you for using fixya.

Nov 04, 2010 | 2002 GMC Envoy

1 Answer

2002 GMC 2500HD Diesel service engine light on, automatic but won't shift gears. also shift indicator light don't work all the time

out of commision right now? sounds like it needs a new transmission, or out of fluid, but if the fluid is low or empty theres probably some dammage thats been done. i bet if you run that computer to check that code it will only confirm your guesses...

Feb 08, 2010 | 2002 GMC Sierra 2500HD

1 Answer

Dtc code u1000

all u codes point to a communication issue between computers. You will need to get this diagnosed since the problem is most likely a bad wire or a failed computer.

Dec 20, 2009 | 2002 GMC Sierra 2500HD

1 Answer

What does a P0342 code mean?

P0342 code means: camshaft position sensor- low imput. Check wiring (short to earth), if OK change camshaft position sensor.

Oct 08, 2009 | 2002 Daewoo Lanos

2 Answers

I have a service engine soon light and the code that appeared when check is 1481, do you know what this means?

Service Engine Soon (SES) or Check Engine Light On, DTC P0480, P0526/P1481/P1484 Set (Replace Engine Cooling Fan Wiring Harness) #05-06-02-012B - (10/19/2006)

Models:2004-2006 Buick Rainier
2002-2006 Chevrolet TrailBlazer, TrailBlazer EXT
2002-2006 GMC Envoy, Envoy XL, 

Some customers may comment that the Service Engine Soon (SES) or Check Engine light is illuminated. This condition may be intermittent and upon investigation, the technician may find either DTC P0480, P0526, P1481 or P1484 set.

This condition may be caused by the cooling fan harness chaffing against the plastic guide it routes through. This contact may damage the insulation of the wires enclosed in that harness.

Replace the wire harness: 
Part Number 89024920 Description Harness Assembly, Engine Cooling Fan Wiring

Good luck and keep me posed. 

Aug 11, 2009 | 2003 GMC Envoy

1 Answer


160 MPa at idle and it reaches at least 158 MPa 
Good luck but i think there was a recall on the fuel system on your year and make of truck.
#04-06-04-007I: Service Engine Soon (SES) Light On, DTCs P0087, P0093, P1093, Low Power, No Start, Hard Start, Fuel in Crankcase (Replace All Injectors - New Strategy for High Fuel Return Rates) - (Aug 18, 2008)

Apr 07, 2009 | 2002 GMC Sierra 2500HD

2 Answers

2002 GMC 2500HD 8.1L

Sounds like the cam positioning sensor. I have a 2002 GMC 2500HD 8.1L and this happened to me. Hope this helps.

Feb 03, 2009 | 2002 GMC Sierra 2500HD

Not finding what you are looking for?
Cars & Trucks Logo

1,026 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts


Level 3 Expert

77932 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides