After my truck got much slower starting this week (in Maryland). I had to put the glow plugs to the top of the list. When ever you glow plug controller times out very fast most likely a glow plug or several plugs are burnt open. My truck had three that burnt open and a couple weak ones. Put the best used ones back in and two new ones that I had on hand. Four things you will need for this job. 1. Some good used or new glow plugs. 2. Can of copper high temp Never Seze. 3. Top Side Creeper. 4. Test wires to hook to battery and test the old glow plugs The test will be in the morning.