Exhaust valve sticking causing truck to die?

[slammed83mazda]

Since it has got cold the trucks done this to me about 3-4 times so far. If I don't plug the truck in and start it, it will idle weird like it normall would when the valve is working like it should. You know your normal quieter idle and some loss of power. The problem....

I go to take off and I will get rollin about 20-25 mph. All of a sudden the truck will jerk, start loosing power and eventually kill itself.

I have found the solution is to pull the battery cables for about 10 seconds, clear all my codes and try to fire it back up. It will take about 15 cranks usually and it will try to get itself going. It will idle weird then slowly catch itself back up.

The tach moves when this is going on....

I want to figure this out before throwing money at it, I'm thinking CPS sensor?

[BigFuel]

Just askin, you sure your EBPV isn't closing on you?

[slammed83mazda]

Originally Posted by BigFuel

Just askin, you sure your EBPV isn't closing on you?

That's what I was trying to refer to. It will close and cause the truck to shut it self off. Causing me to have to go through what I posted.

Were is the plug for this?

[erics diesel]

The plug for the ebps is on the drivers side base of the turbo pedestal. It has 2 wires that go to it

[95Strokeee]

You could make the ebpv in to a switch so that you don't have to totally get rid of it! You have to splice factory wires, it's real easy though


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[BigFuel]

Originally Posted by slammed83mazda

That's what I was trying to refer to. It will close and cause the truck to shut itself off. Causing me to have to go through what I posted.

Where is the plug for this?

Sorry, reading your post and the title (I don't know, I started drinking early yesterday) I was thinking you were asking about your engine sucking an exhaust valve in one or more of the cylinders. You can unplug the EBPV or the sure fire way to eliminate the issue to test is to pop the actuator rod off the EBPV and wire the valve open.

[madpogue]

^^^^^ It's not the alcohol. "Exhaust valve" typically means one or more exhaust valves in the valve train.

So when this happens, does the engine make a "whoosh" or hissing sound? That would indeed indicate the EBPV closing when it shouldn't. But it shouldn't kill the engine, it should just make it rather unresponsive power-wise.

[slammed83mazda]

Originally Posted by madpogue

^^^^^ It's not the alcohol. "Exhaust valve" typically means one or more exhaust valves in the valve train.

So when this happens, does the engine make a "whoosh" or hissing sound? That would indeed indicate the EBPV closing when it shouldn't. But it shouldn't kill the engine, it should just make it rather unresponsive power-wise.

Yep it makes that exact whoosh sound, looses power will slowly idle down and pour white smoke.

[slammed83mazda]

unplugged the valve and it still did it, im lost on this. Had 0 problems in the summer, if i plug the truck in it won't do it at all. Just does it from a cold start.

[BigFuel]

Did you disconnect the actuator rod and wire it open?