I have a 2006 Chevy Colorado. That will not crank. The only code that is showing up on my little cheep code reader was p0449 so I checked the system and the evaporative emission hose was disconnected. So I reconnected it with no luck clearing the code or getting it to start. I changed the evaporative pressure solenoid because it was cheaper and seemed to not be functioning. I've cleaned the throttle body and maf sensor. With no luck starting. Still the only code that's popping up is the p0449. I haven't change the valve by the charcoal canister yet. But I'm wondering if that would do any good. I have pressure on the fuel rail since it sprays when I press in the valve on the access port, but don't have a gauge to measure it. After the key is off there is still some pressure but does not seem like as much. I pulled the cam shaft actuator and it was dirty but screen were still there I replaced it anyway thinking it could be clogged. Since there were no Codes for the position sensors I didn't replaced them. I have replaced the fuel pump thinking it went out but that wasn't the problem either. I know at this point I'm just throwing parts at it. I'm thinking there must be a vacuum leak. It turns over fires like 1 time goes up to 1 rpm then shuts off immediately. Have you got any suggestions that I can try to keep me from just throwing parts at it?

Comments (15)
No. 1-7
Taterchip
Taterchip

It turns over cranks and then shuts right off only code it shows is P0449

Taterchip
Taterchip

188 plus thousand miles to be exactish

Taterchip
Taterchip

Here is a short video of what it is doing now. I believe I have killed the battery from trying to crank it and I have the throttle body and maf sensor out cleaning them again now. I guess I should wait to video until after I put them back. But it does the same thing when they are in as it does when they are out strangely enough.

Taterchip
Taterchip

I have already bypassed the passlock system it turns over fires like it is going to start and shuts right off after maybe 1 second.

knockonwoodmotor
knockonwoodmotor

NEVER JUST THROW NEW PARTS AT ANY VEHICLE WITHOUT TESTING THEM FIRST ! YOU NEED TO TO ISOLATE THE PROBLEM FIRST AND GO FROM THERE

IS YOUR point A (No Start)? Or? You say it has a (No Crank) issue .....jammed / broken timing chain , or switch locking you out , I can not think of a switch at least one that would cause the engine NOT To Crank Take correct size Socket & breaker bar and try to turn over the engine by that hand method , In The Correct Direction of Engine Rotation , See if it will Turn , removing the spark plugs Helps in this endeavor this will Help you determine whether it is an engine problem or another