cancel
Showing results forย 
Search instead forย 
Did you mean:ย 

check engine light comes on

cowboy_lineman
Explorer
Explorer
We have a used 2003 American tradition 75,000 miles on it. Check engine light comes on after it's driven awhile and it loses about a quarter of the power. I pull over , check everything, turn it off, sometimes light goes off sometimes it does not. Last time it happened I had just refueled. Took it to shop and they could find nothing on the diagnostics. This does not happen every time we drive it, I would say every other road trip. Anyone have any ideas??
9 REPLIES 9

ArchHoagland
Explorer
Explorer
What engine?
2004 Monaco La Palma 36DBD
Workhorse W22 8.1 Gas Allison 1000, 7.1 mpg

2000 LEXUS RX300 FWD 22MPG 4020 LBS
US Gear Brakes

i5trucker
Explorer
Explorer
Get a Scan Gauge reader, then you will know why the CEL is coming on, it will also tell you lots of other neat stuff.

superk
Explorer
Explorer
I too am going to assume its a diesel coach, my advice is NOT for a gas engine.

If you can, please post what engine type you have.

Is it simply a loss of power? Does it rev up as if a gear was dropped? Anything out of the ordinary in terms of shaking, stuttering, misfiring or strange noises?

DSDP_Don
Explorer
Explorer
"cowboy lineman".....frequently, issues like yours are fuel filter related. If your filters haven't been changed in the last 10K miles, I would change them first before spending any money at a shop.
Don & Mary
2019 Newmar Dutch Star 4018 - All Electric
2019 Ford Raptor Crew Cab

WILDEBILL308
Explorer II
Explorer II
Dakota98 wrote:
Catalytic converter blockage ?

Lose of power can be caused by this type of thing.

Also, the fuel pump may be failing.

I bet it is a diesel so it doesn't have a Catalytic converter to be blocked but it could be fuel filters.
Bill
2008 Newmar Mountain Aire
450 HP CUMMINS ISM
ALLISON 4000 MH TRANSMISSION
TOWING 2014 HONDA CRV With Blue Ox tow bar
A man who carries a cat by the tail learns something he can learn in no other way.
-Mark Twain

1492
Moderator
Moderator
Moved from Forum Technical Support

Dakota98
Explorer
Explorer
Catalytic converter blockage ?

Lose of power can be caused by this type of thing.

Also, the fuel pump may be failing.
I'm an expert in only one field....I believe it's somewhere in Kansas.

2000 / 22' SKYLINE NOMAD LITE
1998 DODGE DAKOTA / 5.2L= 8mpg.
2006 POLARIS ATV
1500/1200 Watt Champion generator
Yada Wireless Back Up Camera
1998 Dyna Wide Glide
USMC 68-74

cowboy_lineman
Explorer
Explorer
Light is off by the time it goes to the shop shop. Guys take it out and drive it and light does not come back on. Thanks for the tip, going to get the reader..

K_Charles
Explorer
Explorer
Get the code checked when the light is lit or get a code reader.