Years ago, I had a Cavalier Z-24 with the transverse-mounted engine. Could change the plugs on the bank closest to the front, but the opposite bank was right up against the firewall! What to do?
The mechanic showed me their secret...he went under the car and loosened two motor mounts...then PRESTO! The engine "tilted" forward, allowing access to everything else normally obscured by the firewall! Neat!
Sometimes, GM doesn't share those secrets...
