motor or trans

[wwr]

I have a 05 itasca38j with a 8.2 and allison 6sp just got back from trip after warmed up everytime I had to really slow down( example constuction) went to speed back up acted like it wanted to die then kicked down then back up then bog and finially would catch and take off again. Work great until next constuction then same thing check engine light came on but just o2 senor low voltage. any body have any idea

[creativepart]

Sounds like engine to me and could be fuel related or many other things. Especially with the CH light for the O2 sensor.

Please feel free to value my opinion for exactly what you paid for it... because that's what it's likely worth.

[imnprsd]

Is this what you have? ....2005 Itasca Suncruiser 38J Class A Workhorse Chassis 8100 Chevy Gas 2 Slides

Since you have a gas rig, can you scan for engine codes using a cheap engine scanner through your OBD2 port under the dash?

* Some, not all, facilities will scan your engine fault codes for free so they can give you a quote. Others charge. ...Sort of depends if you are traveling and passing through; or if you can drop it off, which is what most prefer so they know they "got-you!"

* This is why building a relationship, based on spending money, with a local shop provides peace-of-mind.

* Do you have a Transmission Position Sensor (TPS) behind your foot peddle? If so, you might check the wire connections. (Just a guess.)

* Do you have an Allison 3000MH? Not sure. Just wondering if your tranny speed sensor needs cleaning. (Easy to do if you can get underneath?)

* Maybe you have a bad igniter on one of your spark plugs? ...Just about anything can monkey with your ECM. Same goes for a crank position sensor. Fortunately, most things show up when you scan your engine for current faults and look at the history of faults. Just don't ignore doing this if things get better, because your systems just sent you a sign. And if you ignore it, and don't check for faults, then one day you may find yourself spending big bucks for a tow. Not to mention all the other inconveniences.

So IMO, you should consider this a "lucky" situation... if you pursue the warning you just got.

* One more thing, did you just pull your coach out of storage?

That's all I got to help. Good luck.

[wwr]

it,s a sunrise 8.2 I scaned the code and came up with both o2 sensors low voltage no other code changing fuel filter tomorrow bad thing it never happens until a couple of hour driving

[wwr]

changed fuel filter( the original one was still on) had to get adapter works great thanks for all help

[1953m38a1]

Have a 2008 Itasca Suncruiser 38T. Exactly same symptoms, flutter on power up after slow down. My mechanic friend suggested the fuel filter as being the probable culprit. It required the adaptor kit to fit up to the filter on the frame(available with search Google).Expensive for first go around but will now hook up with readily available filters in the future.

[Farco]

Badly worn out O2 sensors will definitely affect the engine. They can cause the computer to cut fuel going to the injectors.
Change them and then drive it. The computer will sense the new sensors and make adjustments back to normal.
My engine acted like fuel starvation, the CE light flashed, and then light went off and engine seemed normal again. Wacky signals from 02 sensors can wreak havoc.