Poor Milage, Power Loss, Stalls, Misfire's And Now No Start And Se

[jheight69]

Good morning.

 

So I have a 03 2500HD 4x4 LB 6.0 with about 150000km... had it for the last 50000. Suddenly the other day the problems started on a 200km road trip... and didnt actually make it home. The codes are as follows.

p0300

p0171

p0174

p0131

p0137

p0151

p0157

 

I would like to extrapolate but I am already late for work...

Any thoughts would be helpful, TIA

 

JH

[Draenor]

Inspect the wiring to your o2 sensors. They may also be on they're way out. Also try cleaning the MAF with a MAF cleaner.

[bill190]

As said above, inspect the wiring and connectors to both oxygen sensors. It is a good idea to replace the oxygen sensors every 60,000 miles as a regular maintenance item.

 

Then if routine maintenance has not been done on this vehicle and you want to repair it yourself, I would suggest getting a factory service manual set (4 books) which you can order from a GM dealer.

 

These books list maintenance items to be preformed at certain mileage intervals. Check this, replace that, lubricate these locations, etc.

 

Then for diagnostic trouble codes, these books will give you *detailed* troubleshooting instructions for *your* specific vehicle. You would mostly test various things with a multimeter for voltage or resistance. Then you can find the specific cause and replace that part or fix the specific problem (rather than guessing). Saves money in the long run.

 

Here is some information to get you started on your p0300 DTC...

http://www.random-misfire.com