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The check engine light coming on usually means that there is a problem in the emissions system. (including something as simple as your fuel cap being loose) If you take the car to Auto Zone, or Checker or any of the other major parts houses, they will read the computer codes for you at no charge. This will tell you what has failed or is being problematic.
What else can I help you with?
What causes the service engine soon light to go on in a 2003 Cadillac dhs?
The service engine soon light comes on when the computer detects a malfunction and sets a code. see related questions below for more info.
What size engine does the 2003 Cadillac Escalade have?
The 2003 Cadillac Escalade has a V8 engine.
What size engine does the 2003 Cadillac CTS have?
The 2003 Cadillac CTS has a V6 engine.
What size engine does the 2003 Cadillac Escalade-EXT have?
The 2003 Cadillac Escalade-EXT has a V8 engine.
What size engine does the 2003 Cadillac Escalade-ESV have?
The 2003 Cadillac Escalade-ESV has a V8 engine.
What is the base engine size of the 2003 Cadillac CTS?
The 2003 Cadillac CTS has a 3.2 L base engine size.
What is the base engine size of the 2003 Cadillac Escalade?
The 2003 Cadillac Escalade has a 5.3 L base engine size.
2003 gmc Yukon check engine light comes on what could be the problem?
changed battery engine light stays on
How many horsepower does the engine in the 2003 Cadillac Escalade have?
The 2003 Cadillac Escalade's engine produces 285 hp @ 5200 rpm.
How many horsepower does the engine in the 2003 Cadillac CTS have?
The 2003 Cadillac CTS's engine produces 220 hp @ 6000 rpm.
Theft system light comes on have cadillac deville 2003?
you have a problem with theft system possible key cylinder
How much torque does the engine in the 2003 Cadillac Escalade have?
The 2003 Cadillac Escalade's engine produces 325 ft-lbs. @ 4000 rpm.
