I have had no luck finding just the cap at the parts stores, they want to sell the whole thing. Will another cap work on a turbo buick off another make or is this specific to our cars. I may just order one from Tomco if all else fails. I've read a lot of threads on the issue I'm having and a LOT of them come back to be a bad cap. I have a new coil pack and module but it does the exact same thing as the old ones. I may try another set from a member in a couple days just to eliminate that possibility. I have had 2 issues in working on cars with a bad cam sensor. The first was the whole unit was bad, the car would not start with this issue. The next dealing I had was the cap itself was bad, the car would break up under load just like the GN is doing. Just wondering if there is another make that will fit ours, thanks for the replies guys!