07 tucson I service my truck every 3000 miles it was done just last thursday now the check engaine light came on ay help? I looked under the hood everything looks good.

can be a number of problems -have the check engine light scanned most auto stores offer this service for free the code will assist in solving your problem

check for more fuses under the hood

There are two type of emission classes.

Federal and California emissions.

Look under the hood for the emission class sticker.
Smog check station's machine in CA are programmed to handle both types.

You do not need to change anything before the inspection.

==== Side notes: You should check the service record for the last Catalytic converter,O2 sensors and EGR valve change.
Service interval for
Catalytic ~180,000 miles O2 ~150,000 miles EGR ~160,000 miles


If you can locate the last smog test (even from out of state) Check for the
CO NOx

The 3000-4000 mile oil chnage interval is for extreme driving as described in the user manual. If you are not driving in stop and go traffic,frequent engine shut off's and restarts or dusty conditions, short trips, you can adhere to the higher mileage interchange. Your vehicle should alert you when service is due.

you should be able to cycle key 3 times quickly to on position and the odometer will show codes. have codes read and find out what issue is it may be something minor but its best to know before it gets more costly

Did you forget to tighten the gas cap correctly? This has caused many many lights to come on. If not, then drive it till you can get it to the dealer.

2005 Hyundai Tucson
Battery is fine I had it checked. The Tucson will not start. It will crank and crank but nothing.

fit a manual gearbox ??check oil level with reverse gear selected ,engine running and chocks under drive wheels .

If you are close to 3000 miles, change oil. Low oil will overheat and change chemically. While under there, take a look around and see where or if oil is leaking anywhere (should not be hard to find) After changing, run and check again while running. Providing you aren't getting a lot of smoke out the back, (burning it) likely you will find a leak, then fix it!
good luck

check the fuses.