Perhaps this is a dumb question, but what is required when the Service Engine light comes on. My truck is running fine, fluids good, etc. Get codes read? Thanks in advance.

 

yup. Get the codes read. Most parts houses will read them for free. Write down the 4 digit code and post back on here. we can guide youin the right direction.

Most shops will not clear the codes to turn off the light.

 

Appreciate it.

 

Wow, my SES just came on today on the way down to get the emissions tested, what timing. I'll have the codes read and be back here tomorrow for advise. I sure do love these forums.

 

My "service engine" light came on recently as well.

Whats the difference between the check engine light and service engine light if they both throw codes?

 

I am 99.7% sure they are one and the same.

 

same thing

 

I've always thought that the "Check Engine" light was the red light shaped like an engine that comes on when you're in big trouble....????

 

My check engine light was on when I had a misfire.

The service engine light came on recently and I've yet to have the codes read. It just makes no sense that they're the same thing. I was hoping it was a simple service interval light, but apparently not.

 

the DIs have a check engine light and a service engine light, as I recall. The check engine light indicates something going on with your engine or related systems, get the codes read asap and figure out what set off the code. The service engine light on the DI is a reminder to have the emission button reset. The reset button is on the passenger side either behind the glove box or just under it. Check the threads you will find the info. You need to find the small metal box, peel the sticker back and reset the button using a small pen , toothpick or something similar. The light comes on at around 85k miles as I recall. Takes about 15 minutes to get it done. Good luck. Phil

1999 DI
2001 DII