The gas cap may not be sealing properly and it is something you cannot just look at or tighten to correct. As for the oil light, it is telling you that your oil pressure is low. If it seems like the oil level is OK by the fact it is in the right range on the dip stick, it may be a failing oil pump.
On dash display saying check gas cap/check engine oil, gas cap tight/oil level fine
2001 Cadillac DeVille
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Maintenance & Repair
Neither of the 2 cooling fan come on my 2000 Deville, even with AC on high. I've seen this same issue posted on here several times with the Deville's and Seville's Northstar engine but I have never ...
2000 Cadillac DeVille DHS Sedan FWD
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Maintenance & Repair
i just replace the struts in the front of my 1992 cadillac deville .now it seem lik my wheels are slanted inward and when i drive it sound lik sumnthing is rubing and make a big clink noise wat coul...
1992 Cadillac DeVille Sedan FWD
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Maintenance & Repair
I need some serious help,im trying to avoid going to the( stealer ) When my headlights come the right side parking light and tail light don't come,but this the strange thing the right signal light co...
2000 Cadillac DeVille Sedan FWD
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Maintenance & Repair
the lights on the dash go out and the ac stops also and then they come back on again.
1999 Cadillac DeVille Sedan FWD
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Maintenance & Repair
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