Bob Dann 2/17/2013
2003 Chevrolet Silverado 1500 LS 8 Cyl 5.3L
Why does the check engine light come when towing a trailer?
The check engine light comes on during hard acceleration or towing but then it goes out after a few miles of normal driving.
First step - have the check engine light or stored fault codes scanned - for free - at any local auto parts store; Advance Auto, Auto Zone, NAPA. Then, post a reply as 'add answer' with the specific fault code for more assistance.