I purchased a 2004 Xlr in 2019 from an agent in fl. I immediately or with-in 200 miles I began to receive messages on my dash! first it was traction control that applied the brakes and caused the car to vet violently to the left as soon as I hit 65 miles an hour. Then the check gas cap followed by check engine lights came on. My Cadillac dealer was at a loss to solve the problem with traction control until they contacted the corvette engineers in bowling green, which took a week! they replaced the gas cap and that problem went away only temporally! on further inspection the tech's at my local caddy dealer determined by a smoke test that the crossover hose between the tanks was leaking! they gave me an estimate of close to a $8000 repair! the car has less than 54,000 mi. I have researched this problem and I am seeing this problem occurring in this model year perhaps because of engineering changes made to conform to government emissions standard controls! I am researching alternatives to having the repair done by my local dealership as they really don't seem to be very capable. The cap has been changed twice and the same problems reoccur!

- Hawthorne, FL, USA

Check gas cap, check engine light. Dealer says I need a new rt fuel tank but none are available. What do I do now?

- Sterling Heights, MI, USA

Fuel sending unit keeps failing can't tell how much fuel is in tank. Had first one replaced at cost of around $2300 replacement lasted around 18 months then it failed. Never know when whole unit will shut down and leave me vulnerable to a rear end or stall.

- Southfield, MI, USA