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Message: <blockquote data-quote="Chibbzee" data-source="post: 1214506" data-attributes="member: 18271">So, I thought I had fixed my problem. Apparently I have not... Anyhole, here's a small back story. Ok. Not really a back story. Check engine light popped on. Read the code(s). Lean bank 1 and bank 2. Truck stumbles on starts (cold or hot) really bad. Once it gets passed it, it runs normal as long as you don't go under a load. Roughly 75% throttle and up. It just sort of stops going and pulls power. Just kind of falls on it's face like it is missing, but it isn't. I've cleaned the MAF and have used nothing but Shell and Chevron for like 6 years. Not sure what it could be. Oh and my fuel pump is irregularly loud and whiny...This problem has happened before and what I've done fixed it, but not this time. I'm stumped. Thinking my fuel filter is clogged. I changed it last time it happened and it worked for awhile... Again, vehicle is a 2001 Exploder Sport Trac. 4.0L V6. Automatic. 196,xxx miles. Fuel pump was done about 2-3 years ago. Plugs and wires were done about 6 months ago.Any ideas? Feel free to ask questions.</blockquote>