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Cadillac Repair/engine overheating message
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Question
Hi Rob, I just bought a 96 Eldorado and a few days after its starts giving me warning messages on my dash board, Change Engine Oil, Check Coolant Level, Coolant Engine too hot, Engine Overheating, Vehicle Speed, Idle, and I start noticing the Service Engine Soon lights is on, So I took to a Dealership and have it Lube (engine oil, top-up the coolant) When I came to pick it up the service engine sign is gone, However, after driving it for 10min. all those message start flashing again so as the service engine sign.
I wonder if it something major or just some faulty sensor what causing those. What is the best thing to do? Help for some advise and Thanks for your consideration.
Hi Pedro,
The problem with the check engine light going out, makes the driver think whatever problem caused it to go on is now fixed.
To have all those issues tells me it is a computer problem. When the light comes on, the computer should store an error code(s) that aids in diagnoses of the problem.
The dealer has a scanner that plugs into the OBD II (On Board Diagnostic) port on the lower part of the left side of your dash. The codes will come up telling the tech what the problem is.
Unfortunately, there is not a majic bullet to fix these cars by yourself.
Once the car is scanned and you know what the problem is, you can commonly go to Ebay and get a sevice manual for your car and sometimes the parts for a lot less than Cadillac charges.
Good Luck
Rob
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Rob Painter
Expertise
Alarm system questions cannot be answered on this forum. These systems are not what I can answer. Without being physically at the vehicle and not knowing what kind of electrical service has been done on the vehicle, there is no possible way to give an accurate answer over the internet. My expertise is in Ignition/key based anti-theft systems. These issues include GM VATS (resistor chip in key blade) PASSLOCK (MRD)-ignition lock rotation based, no special ignition key and the PKIII Transponder (computer chip in key) systems. These systems are not alarm based and are integral with the starting of the engine. This is why I cannot diagnose alarm problems without physically looking at the vehicle: Alarm systems are a completely different annimal than ignition key/lock based anti-theft system. Many alarm questions come from vehicles 10 years old, and since older, many hands that had been involved over the years.I am an expert in all GM factory (ignition/key based)systems. Alarm system questions pose to many situations beyond my knowledge as to what has been done to the vehicle over the years. Some guy may have actually wired the stereo into the alarm system. Who knows? Over my past 30 years in vehicle wiring repair, I have seen unbelievable wiring disaters done by guys that consider themselves "mechanics." I have seen stereos and alarms intalled using surgical tape. I have seen modules burn up, un-fused circuits, wiring jambed between the doors and even lamp cord used for a starter kill. To answer alarm questions over the internet without examining the vehicle is like asking; What does it take to remove a dent?
Experience
Education/Credentials-ASE certified. 11 years with a GM dealer and 17 years with a repair facility dealing with only the repair of theft recovered vehicles.
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