I have a 2003 duramax and it stalled out. I got it to crank but it only ran for a few seconds then stalled again. Now it will only turn over for a few seconds. It threw a p0335 code. Crank position sensor. I changed it out. Cleared the codes and it threw it again. I'm starting to lean towards the injectors but I was seeing what else I should check before taking to get them changed. Also checked the wires and couldn't find any chaffed. And while I had the sensor out I checked the reluctor wheel and it wasn't loose but it also was not directly behind the hole that the sensor goes in. Thanks in advance for any help.
LB7: Stalled now won't start
- Thread starter 2003 duramax
- Start date
Iv never seen a tone wheel come off an 03 but thats sure what it sounds like, all the loose tone wheels ive fixed have been on lly trucks. othere posibility would be sheared pin on the crank that locates the oil pump drive gear which hold the tone wheel. pull the crank sensor back out and stick you lil finger or a small srewdriver in there and see if the tone wheel moves freely! Good luck.
I'm sorry it must have been the tone wheel not the reluctor. I got a screw driver in there and couldn't move it. Thanks
It's around 45 here and I have a airdog on it and I always turn the pump on and loosen the bleeder screw and there was fuel coming out. As I'm trying to start it it is getting 15000 lbs rail pressure. But it will only turn over a few seconds then stop.
Security light blinking? Check the fuse for the fuel. Should be one of em marked by a *, think its #3.
I went through the same thing.
I went through the same thing.
I tried but it just stayed at 0. If the rpm is read off the crank sensor and its suppose to read while cranking then it may be something with the wiring. Maybe? Or I got a bad sensor is there anyway to check the sensor?
if its not reading rpms it will not fire, theft mode will still read rpms but wont fire injectors. doubt its the sensor if its the same problem with 2 different ones, either a wire rubbed? Main engine harness plug problem, (any thing pluged in between the main harness, like an edge or anything?) Sure the tone wheel is there and its not just the gear? if they come completly loose they will slide back to where you cant see them or touch them.
Do you have a picture of the tone wheel if the picture I found is the tone wheel then it bolts to the back of the reluctor? If that's right I think mine must have slid back.
Well thanks I guess I'll be taking the motor apart. All I saw was that front gear. I guess I'll start ordering gaskets and I'll replace the front seal. It's been leaking for a while. Does the timing cover have a gasket or just rtv. Thanks for your help.
Think you have to have a special tool to get he front main seal in correctly too. Someone correct me if you dont
just rtv for the front cover, this can be fixed in the truck, its tricky but it can be done, if your lucky the bolts will still be layin in the front oil pan and can be reached with a magnet. Good luck!
Yea I'm going to try to get a install tool and the tool to hold the crank to get the balancer bolt out. Thanks for the help. I'm going to start the tear down tomorrow.
x2 mine were all laying in the pan, and dont get the cam and crank sensors mixed up, they are different and the truck will not run..
Well got it tore apart today. Took about 4.5 hours, not to bad for our first time on a duramax I think. But we only found one bolt from the front. And the dowel pins are gone. I think I'm just going to buy new ones instead of pulling the lower pan.