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Chris (aka-Moose)
Chris (aka-Moose), Technician
Category: Car
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Experience:  16 years of experience
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chevy: (disconnected vacuume lines..pcv..my propane step-van, 1 ton

Customer Question

no one wants to fix the "tampers" (Disconnected Vacuume lines, pcv sys, & fuel evaporation control sys) on my propane step-van, 1 ton so i want 2 fix it myself. it's a chevy 1981 & i need the manual so i know which PART to ask for at the store.
Submitted: 11 years ago.
Category: Car
Expert:  Davo replied 11 years ago.
   
Expert:  Davo replied 11 years ago.
 
Expert:  Davo replied 11 years ago.
 I have made these 2 diagrams free to see if they are what you need.If they represent the engine components in the van let me know.I will tell you what the parts are called as needed to try to get it where it needs to be.A step van can be a whole different animal as far as emission controls go.Is it failing the CA emission test?
Customer: replied 11 years ago.
You're not kidding when you say "whole different animal"!!! i've gotten so many refusals to work on it that it's blowing my mind!!! So I really appreciate your help. I will take a look at it this week when I get a chance. I'll compare to see if it matches. ....& no it didn't fail smog since it runs on propane(i'll double check to be sure). It was the visual inspection part. They saw the disconnected parts & I beleive that's what made it fail. People mess with 02 system to get better performance & since they tampered with the emissions system the disconnections are called "tampers". (i'm learning this stuff as i go!) I don't know why they were disconnected though....I inherited this vehicle from my father. uggggh! what a pain!
Expert:  Davo replied 11 years ago.
 Thats what I meant if it was failing emissions because of diconnected controls.I wish you luck finding emission parts for something that old.
Customer: replied 11 years ago.
Dear Davo,

Hi! Thank you for your responses. I have not had a chance to look underneath my step-van yet. I will use the diagrams that you sent & I did find out that the only reason that it failed was because of the missing/disconnected parts. In any case I'm sure it wil help. Thanks again.

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