2003 Cadillac Escalade EXT Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2003 Cadillac Escalade EXT
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2003 Cadillac Escalade EXT ProblemsCheck Engine Light Due to Restricted Secondary Air Injection Check Valves
One or both secondary air injection check valves may become restricted causing poor air flow resulting in illumination of the Check Engine Light. It is often recommend to replace both check valves even if a fault code is set for only one bank of cylinders. Replacing only one valve may result in a return trip to the repair shop.
It is common for the fuel level sensor in the fuel tank read the fuel level incorrectly. The sensor must be replaced to correct the condition. Our technicians recommend having the complete fuel pump module replaced on high mileage vehicles.
2003 Cadillac Escalade EXT Questionsmy service ride control message come on and at times my t/c and abs light comes (1 answer)
and my traction message come on and my truck slows down then regains speed what is going on with my truck
on yhe brake
I have escalade ext and I installation k&N 77 and rpm is up and down and tuyn off went is ruanig