go to autozone.com, they have free pics
Need more information.
There's usually a sticker under the hood with one on it but if not, you'll have to buy a motor manual with one in it.
I do not know about a 1988 Isuzu PU, but I have a 1992 and the vacuum diagram is on the underside of the hood. You may need to clean it up a bit to see it. I did. Hope this helps. morempg2u
vacuum diagram for vx supercharger
6
I need a diagram for vacuum system for a 1995 chev lumina 3.1
Need to see fuse box diagram
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yes
yes
Please be more specific. Are you looking for a diagram? Do you need to know what it means? Are you having a problem with vacuum system?.