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<blockquote data-quote="BillPlayfoot" data-source="post: 462164" data-attributes="member: 22157"><p>Two weeks ago I had that same error code 0440 on my 2003 Trailblazer. </p><p>Replaced - fuel tank</p><p> - fuel pump/sending unit</p><p> - purge valve</p><p> - fuel lines</p><p> - fuel filter</p><p> - gas cap</p><p> - air filter</p><p>That problem solved.</p><p>Now the transmission down shifts and up shifts when driving at a constant speed. Speed up or slow down the transmission is fine. Thinking maybe the transmission solenoids are failing</p><p>If I had not just bought this Trailblazer in November I would have junked it. </p><p>I have to learn that I cannot afford to buy cheap priced vehicles.</p></blockquote><p></p>
[QUOTE="BillPlayfoot, post: 462164, member: 22157"] Two weeks ago I had that same error code 0440 on my 2003 Trailblazer. Replaced - fuel tank - fuel pump/sending unit - purge valve - fuel lines - fuel filter - gas cap - air filter That problem solved. Now the transmission down shifts and up shifts when driving at a constant speed. Speed up or slow down the transmission is fine. Thinking maybe the transmission solenoids are failing If I had not just bought this Trailblazer in November I would have junked it. I have to learn that I cannot afford to buy cheap priced vehicles. [/QUOTE]
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