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Old 11-07-2012, 09:39 PM
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P2100 OBD code - Intermittent Starting Problems

I have a 2005 Grand Cherokee Limited 5.7 and it's been having intermittent starting problems. When I turn the key, the starter cranks but the engine won't start. I'll be there 5-10min just trying until it finally gives in and starts. It's very random, sometimes 5x a day, other days once or twice, and other days no problems. Crazy thing is, when it does finally start, it runs PERFECT! I had AutoZone test my battery (its good), it can't be the starter because it does crank normally and eventually it does start. When it doesnít want to start I do get a code with the code scanner (P2100 - electronic throttle control motor circuit) I donít get any lights/codes when the truck is on. I really donít have a clue what it could be and everything I thought could've been the problem, I checked and ruled it out. I think that OBD code can be a clue. Anybody have any ideas? Has anyone had this problem?
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