Quote:
Originally Posted by WVZR-1
If you're near an ACD jobber or GM dealer you might try 214-1044 or 25532662. I've never tried this but I don't know why not. With whatever you buy be sure to check inside the cap for the o-ring seal. I think that generic -4AN caps may not have the seal.
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Feel free to correct me if I'm wrong, but that seal probably isn't super important. The cap is mainly to keep out water/dust, right? It's not holding fuel pressure in the rail. My hunch is, the AN cap wouldn't let anything in as long as it's on tight enough not to back off due to vibration.