I ordered a new '92 GMC Safari van, picked it up from dealer, at home saw temperature gauge pegged...52 miles on odometer. I called an attorney who said stop payment on my check and have dealer pick up THEIR van which I did. They towed it back and called saying thermostat stuck and please get it. I knew heads would be warped (V6). Stupidly I had them deliver it and paid them. Sure enough at 1,800 miles I had oil in coolant and coolant in oil. They picked it up...of course warped heads, blown head gaskets.
They had heads milled, gaskets, delivered back. Then 6,500 miles it sounded like a meat grinder (differential). They tow it back (dealer was 50 miles away). They ordered & replaced rear end. Picking it up the service manager (owners son) chewed me out "I don't know who has been doing your service but rear end was bone dry...not a drop of grease in it!". When he finished I said "Want to know who?" As I showed him the service book..."It was YOU! See the initial check list and the 5,000 mile check up?...That's YOUR signature!". His face turned bright purple as he handed me the keys.
I traded it in to a different GMC dealer who ordered a pickup for me. What a lemon it was.