Forum Discussion
DSDP_Don
May 02, 2016Explorer
Yes....you're worrying too much. Your ISL is running exactly like it should regarding temps. Your check engine light can be associated with several things, including fuel filters, coolant level and on some, even the level in your window washer fluid.
I wouldn't give that momentary CEL another thought, especially since there were no codes.
If it's been awhile since you changed fuel filters, that might be something you want to look into.
I wouldn't give that momentary CEL another thought, especially since there were no codes.
If it's been awhile since you changed fuel filters, that might be something you want to look into.
About Motorhome Group
38,763 PostsLatest Activity: Dec 05, 2025