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: No "check engine light" light. 95firstdiesel 10-08-2006, 10:41 PM My truck has been acting up, so I wanted to run a diagnostics test. The manager at advantage auto was going to do it for me while I was there getting some parts. I know how to do it but he said he did not mind. Anyways, the check engine light never came on. The more I thought of it, I've never seen it, even at the bulb check stage. Is this ok, or is the check engine light malfunctioning/bulb burned out??? Thanks, Matthew DieselPro 10-08-2006, 11:18 PM If the light is burned out it will throw a code. Light should light when in crank mode. 95firstdiesel 10-09-2006, 12:03 AM Nope, and I've never seen it. So, is it just a bulb? How do I change it? How would it show a code if it was burned out? Thanks DieselPro 10-09-2006, 11:14 AM DTC 49 for burned out bulb I believe, or missing the bulb from some jack leg mechanic.:eek: Go to http://dieselplace.com/forum/showthread.php?t=16399 95firstdiesel 10-09-2006, 02:11 PM Thank you for that link. So it looks like I should replace the bulb. Exactly what lights should come on? I get 1. brake, 2. wait to start. 3. seatbelt, and I think that is it. This truck seems to have been taken well care of, no jackleg evidence, and I don't want to be the first. It that a tough bulb to replace? Thanks, Matthew | ||