X is bogging down?!?

[6LMonster]

Okay guys, I need to tap into the knowledge base! Here is the deal:

Our 2005 excursion seems like it is bogging down or hitting a dead spot in the power band. When it does this, a wierd reverberation occurs in the exhaust. It occurs between 45-55 mph. If you really step on it, it will downshift, but this occurs before it wants to downshift.

Any ideas?

 

[6LMonster]

Anyone have any ideas???

 

[CHPMustang]

Have you received any notices in the mail for you to bring your 6.0L into the dealer for any updated flashes?

 

[bbressler]

Does it continue to do it once you have gotten up past that speed?

 

[bushpilot]

how 'bout some info about your truck...exhaust ? tuner ? any codes ?

 

[6LMonster]

We haven't received any notices about flashes lately. I think the last flash was for 5E15 (going from memory and can't remember the code)

It happens any time we are going up hill and the truck slows. Almost like O/D is too tall to pull the hill?!

Info on the Excursion....100% stock, 2005, 4wd, 6.0L PSD.

 

[DaveBen]

EBP is what normally does this.

Dave

 

[6LMonster]

Dave,

Please educate me as to what the EBP is... thanks!

 

[DaveBen]

Exhaust Back Pressure sensor. It will give a false reading to the PCM (Program Control Manager) and cause some strange things to happen, such as surging. There is a tube leading from the Exhaust manifold to the sensor that becomes clogged and needs to be cleaned.

Dave

 

[6LMonster]

Exhaust Back Pressure sensor. It will give a false reading to the PCM (Program Control Manager) and cause some strange things to happen, such as surging. There is a tube leading from the Exhaust manifold to the sensor that becomes clogged and needs to be cleaned.

Dave

Ah, okay, thank you! I will do a search here, and see what info I can find on that.

If any other ideas come to mind...let me know!