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Where can I get a vacuum line diagram?

Tiny
TPEEVY
  • MEMBER
  • 1997 DODGE DAKOTA
  • 200,000 MILES
About a year ago one of my fuel injectors popped up and leaked fuel and caused my truck to catch on fire. Well I replaced everything that was damaged and my AC/Heater will not blow out correctly. The air blows out of the defroster and that is it. One of my friends told me that the Blend Door Motor was not getting any vacuum and thats the reason its not blowing out correctly. Is there any way that I could get a diagram on how to hook everything up properly.
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Monday, July 2nd, 2012 AT 5:22 PM

16 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
What size engine do you have?
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Monday, July 2nd, 2012 AT 5:23 PM
Tiny
TPEEVY
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  • 11 POSTS
3.9 L V6
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Monday, July 2nd, 2012 AT 5:28 PM
Tiny
SATURNTECH9
  • MECHANIC
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I couldnt find a vacuum diagram for the ac but lets start with doing what I posted.
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Monday, July 2nd, 2012 AT 5:41 PM
Tiny
TPEEVY
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  • 11 POSTS
Ok well I think I figured out my problem, I dont know where my evap canister is. I cant find it anywhere around the engine
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Tuesday, July 3rd, 2012 AT 12:58 PM
Tiny
SATURNTECH9
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Hows that your problem?
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Tuesday, July 3rd, 2012 AT 6:02 PM
Tiny
TPEEVY
  • MEMBER
  • 11 POSTS
Because when I went to put a new vacuum line system in I routed the lines to where they diverted the evap canister.
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Tuesday, July 3rd, 2012 AT 9:03 PM
Tiny
SATURNTECH9
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So your looking for the charcoal canister or the canister purge solenoid?
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Tuesday, July 3rd, 2012 AT 9:59 PM
Tiny
TPEEVY
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All I know is what this diagram below says.
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Wednesday, July 4th, 2012 AT 4:53 AM
Tiny
TPEEVY
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  • 11 POSTS
Except on the one on my truck, the Evap Canister is on the other side
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Wednesday, July 4th, 2012 AT 4:55 AM
Tiny
SATURNTECH9
  • MECHANIC
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Ok sounds like you found the evap canister aka charcoal canister. So where are we going from here?Is there a tee off the brake booster with a one way check valve going to your firewall?
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Wednesday, July 4th, 2012 AT 5:40 AM
Tiny
TPEEVY
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  • 11 POSTS
I still havent found it, the diagram on my truck is showing the evap canister to be on the drivers side, but I still havent found it yet.
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Wednesday, July 4th, 2012 AT 3:13 PM
Tiny
SATURNTECH9
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The evap canister is located on a mounting bracket attached to the inside of the drivers side frame rail, jist in front of the gas tank.
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Wednesday, July 4th, 2012 AT 6:19 PM
Tiny
TPEEVY
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Ok, it seems I have all the vacuum lines hooked up properly, I replaced the vacuum harness with a used one from a junk yard, and now it dont sound like I have a vacuum leak, now I am getting air out the floorboard and the defroster. What does this mean.
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Friday, July 6th, 2012 AT 10:04 PM
Tiny
SATURNTECH9
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It means the mode door switch the air flow position to defrost/floor position. What is the mode position set at?
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Saturday, July 7th, 2012 AT 7:21 AM
Tiny
TPEEVY
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Max AC
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Saturday, July 7th, 2012 AT 10:21 AM
Tiny
SATURNTECH9
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No the mode door setting where you set it to feet face defrost etc?
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Saturday, July 7th, 2012 AT 2:57 PM

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