typically, the check engine light comes on when emissions controls are failing or there are transmission issues, maybe fluid level. autozone used to diagnose the problem for free, but wonderful ca legislation gave that the boot...
Look at the lower rear end of engine
How Do I reset the Engine service light on a 1996 Inifiniti I30? Please help. thanks
There are several relay switch is on your 1996 GMC Jimmy. The brake light relay switch can be found below the dashboard in the engine compartment.
get a new engine
A blinking engine light could mean several things. The only way to know for sure is to have the Jimmy checked out by a licensed mechanic.
It would depend on the year and engine size. A 1995 Jimmy with the 4.3L made 200hp. In 1996, it made 195.
KEY ON ENGINE OFF.... 60-66 PSI
The knock sensor on the 1996 GMC Jimmy 4-wheel drive, 4.3 liter 6-cylinder is mounted in the engine block. Under the hood, look in the lower engine area on the passenger side, beneath the cylinder head.
Get a Haynes or Chilton's manual for your truck. They are detailed enough for what you want.
A reset Engine Service Light comes on when an issue comes up with in the engine. This light can be reset by a tech or by fixing the problem.
The service engine soon, or check engine, light is reset with a scan tool after repairing the cause of the trouble codes.
unhook the battery for abt. 30 sec and re connect