I have a 1988 chevy s10 pickup 2.8. I went to the service department at my local chevy dealership and they printed out 3 diagrams for me for free.
You can find a vacuum hose routing diagram for a 1988 Mercedes 190e 2.3 in the owner's manual. You can also find it at various auto part stores.
A vacuum hose routing diagram for a 1988 E 150 van can be found in the vans service manual. The manual can be bought at most auto parts.
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
how do you hook up vacuum lines in a 1988 Chevy nova
Vacuum hose diagram 1988 gmc s15 2.5
The vacuum line diagram for a 1988 Nissan Z24i can be found in its maintenance manual. It can also be found in the cars repair manual.
When making any changes to a vehicle, a diagram can help point the person in the right direction. A vacuum line diagram for a 1988 Plymouth Horizon can be found in its maintenance manual.
It is a vacuum line diagram for a 1988 Toyota Corolla. What else would it be. :-) Just playing. You can find one [http://www.themotorbookstore.com/corolla2.html Here]
haynes repair book at auto parts store or get a Nissan truck service manual,check eBay .the dealer wants 75.00.
The Chiltons/Haynes 72300 has the vacuum circuits divided into the emissions, Fuel and brakes sections of their manual covering each vacuum hose.
In a manual for that vehicle.
ZCAR GRL Anna