Mechanics

CADILLAC ESCALADE ESV BODY PROBLEM

2003 Cadillac Escalade Esv • 146 miles

My 2003 Cadillac Escalade ESV has 4 codes attached to it they are as follows: P2135, P1516, P0220, P0120 (these codes are from Auto Zone) I'm told either my trottle or trottle sensor may be going bad that was 1/7/13. Today, 1/10/13, I heard a distrubing humming sound coming from the rear of my truck near the gas tank area. Do you know what this could possibly be? Is this related to the trottle issue or something else that is going to cost me?
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Shannonguy
January 11, 2013.



Humming is fuel pump. Not related

the other codes, are most likely a bad throttle body for the fly by wire system

Roy

ASEMaster6371
Jan 11, 2013.