99 f250 running problem
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99 f250 running problem
I have 99 f250 with about 90000 miles. It started skipping and had a #1 misfire. Checked spark and compresion both good. Compresion was only about 90 but all had 90. Thought injector might be bad so I put in a new one in. The next day still ran bad but with different codes. bank 1 rich, bank 2 lean and #2 misfire. Check #2 out and all seems well. Thought it might be bad intake gaskets so I replaced them. No help. Still runs bad but no misfire code just the bank 1 rich and bank 2 lean. Notice that I can unplug all injectors on bank 1 and it doesn't run worse. Unplug one one bank 2 and it almost stalls. Has good fuel pressure about 38. looking for some answers on what it could be.
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rainman35
1997 - 2006 Expedition & Navigator
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Jan 25, 2013 11:16 AM
