Check your fluid levels.
check power to fans,if power check fan sensor!!
Fix the problem causing them to be on.
There is an engine misfire, probably spark plugs issue.
There should be a dipstick like the one for oil. Check with engine running.
Get the computer scanned to see what the problem is.
Disconnect the negative battery terminal for at least 30 seconds.
(torque converter clutch circuit performance or stuck on)
Check your coil pack or the spark plugs.
how do you check the safety neutral switch on a 2003 Chevy Malibu
this is for safety so engine does not get ruined,check oil level!!
Any failure that can increase tailpipe emissions.