Service engine light?

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Author Message   Derrick Stauffer (Derrickstauffer) New Member Username: Derrickstauffer Post Number: 1 Registered: 03-2003 Posted on Wednesday, March 12, 2003 - 05:39 pm:    my service engine light has illuminated for no apparent reason. does anyone have any idea why this might occur? "service" engine, not "check" engine....it's red, not orange, and it's solid, not blinking. the hand book does not explain this very well. thanks in advance for your help.   Andy Thoma (Andythoma) Member Username: Andythoma Post Number: 79 Registered: 01-2003 Posted on Wednesday, March 12, 2003 - 06:44 pm:    http://www.discoweb.org/reset/index.htm Check out this article to reset the light. As for the why it on, it is an interval reminder that turns on at 52,500 miles and 105000 miles to tell you to have your emission system checked. The check is insure that the system doesn't leak and the o2 sensors are working and all emissions parts are in working order. If you have bad mileage or have had problems with state emmisions tests, you should get a service manual, or take the truck to a dealer, and get the truck checked out. When mine came on at 105000 on my 95 d1, I knew the emission stuff was fine as my state (UT) does emission tests and the results were well in tolerance. Also my truck makes about 17 mpg highway, so wasn't worried and reset my light. However, I did double check all my emission hoses and the connectors related to the sensor for problems to be sure everything was okay. When in doubt check the service manual.   Francesca Crow (Locolunagirl) New Member Username: Locolunagirl Post Number: 10 Registered: 02-2003 Posted on Wednesday, March 12, 2003 - 06:46 pm:    If its a disco 1, go to the tech section here and click on FAQ. I believe there is a photo "how to" for the service engine light. I have done it on my 97 disco. My LR owners manual says this about the light.... "Emissions maintenance reminder" I believe that it is set to go off at certain intervals.   Danno (Danno) Member Username: Danno Post Number: 194 Registered: 08-2002 Posted on Thursday, March 13, 2003 - 10:57 am:    just did mine for the 3rd time this time at 118k miles. i guess my odometer is really off. it's set to turn on every 52,500 miles. btw, a GLOCK armorers tool (3/32" punch) will do the trick   Dave Roberts (Dave21usa) New Member Username: Dave21usa Post Number: 1 Registered: 03-2003 Posted on Saturday, March 15, 2003 - 12:23 am:    Is this procedure the same for a 99 Disco II?