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Installing rear a/c block off – Auto Repair Chat

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In this video Eric O. demonstrates how he blocks off the rear air conditioning evaporator on a Dodge Grand Caravan. This is an option a lot of customers choose here in the rust belt because of the constant problems with the rear a/c lines and evaporators and the expense associated with repairing them year after year.
S.U.R.& R. AC80 A/C Compression Block Off Kit: http://amzn.to/2oBS117
Robinair TIFZX Heated Pentode Halogen Leak Detector: http://amzn.to/2oC8TVP
Robinair 34788-H A/C Recover, Recycle, Recharge Machine for Hybrid and Non-Hybrid Vehicles : http://amzn.to/2pnDBz7
VIDEO: Chrysler Town & Country - Rear A/C Evaporator - Replacement : https://www.youtube.com/watch?v=bc3EgAefVmU
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50 thoughts on “Installing rear a/c block off”
  1. Avataaar/Circle Created with python_avatars Vrginmost Vrginmost says:

    Whats the size for the plugs
    Thank you sir

  2. Avataaar/Circle Created with python_avatars Leslie Q says:

    What keeps the oil from collecting in the blocked off low point?

  3. Avataaar/Circle Created with python_avatars Dean Harris says:

    Great video! I’m removing the rear hvac unit in my suburban and I’ll use your block off for the A/C lines. Got any advice on how to tie off the coolant lines (down below) to rear heater?

  4. Avataaar/Circle Created with python_avatars UncleMarks DIY Automotive Fix it channel says:

    Have this exact issue with a my boss's van! Thanks for the info! Great suggestions and products Eric.

  5. Avataaar/Circle Created with python_avatars Stephen Grant says:

    Looks like you could have disconnected the lines and put caps on them

  6. Avataaar/Circle Created with python_avatars Charles Mitchell says:

    just wonder if rear mud flaps would help protect A/C if not bad yet or after repair if done? some flaps just stick on even….

  7. Avataaar/Circle Created with python_avatars Johnny Sechrist says:

    Bad temp sensor in heater box has ruined many ac compressors….to bad most manufactors don't sell them unless you buy the complete heater box.

  8. Avataaar/Circle Created with python_avatars Antonio Claudio Michael says:

    Them block offs are very nice Eric O good work as always Easy Peasy Job @SouthMainAutoRepairLLC

  9. Avataaar/Circle Created with python_avatars Aulden LeBlanc says:

    Very interesting.I
    got to get My 2016 Dodge journey done.I was wondering about the cost for this fix. Thanks.

  10. Avataaar/Circle Created with python_avatars Joseph says:

    So how long does a car mfg keep a known defect before re-designing it?

  11. Avataaar/Circle Created with python_avatars autopro21 says:

    When you block the rear ac
    Is there any cold air that comes out of rear vents? And the controls are non functioning or the rear vents don’t work anymore ?

  12. Avataaar/Circle Created with python_avatars Gregory Thomas says:

    How do I block the lines off?
    I cut them with snips…curl around the ends…crimp them together with vice grips…done!
    .
    .
    /jk

  13. Avataaar/Circle Created with python_avatars jr shark says:

    Great job thank you so much

  14. Avataaar/Circle Created with python_avatars John Douglas says:

    When you take part of the system out of service, as you have, does that change the amount of R134 you have to use to recharge the system?

  15. Avataaar/Circle Created with python_avatars charredskeleton says:

    Could a mudflap be added to protect that evaporator?

  16. Avataaar/Circle Created with python_avatars 1FNJO says:

    I would think that the block offs installed at low points of system without circulation would allow the blocked off tubes to just fill with the system lubricant and deprive the AC compressor of needed lubricant .

  17. Avataaar/Circle Created with python_avatars LeewardStudios says:

    The engineer and manager that approved that design should be shot for incompetence, unless the goal was to have instant failure then good on ya mate.

  18. Avataaar/Circle Created with python_avatars Chrischan says:

    You can disable the rear AC at a 2010 Suburban with a block off kit , was wondering , what is going happen to the expansion valve wich sits in the rear ?? Can the AC in front running without expansion valve

  19. Avataaar/Circle Created with python_avatars Med Tec67 says:

    Just a simple plastic gaurd could have saved this. Crappy engineering

  20. Avataaar/Circle Created with python_avatars Darryl Hickman says:

    Used this video and bought the SUR&R AC80 Block off kit, from Advanced Auto, to repair my air in my 07 Chrysler Aspen! My AC is cooold now! Thanks my good man!

  21. Avataaar/Circle Created with python_avatars next0845 says:

    Actually illegal to release refrigerant into the air. A large fine in the UK. Dunno about the US?

  22. Avataaar/Circle Created with python_avatars Randall Press says:

    Great video, My car is in the shop now for same issue.

  23. Avataaar/Circle Created with python_avatars Saeed Hameed says:

    I blocked off the rear ac for my 2012 t&c can you tell how much oil I should add before I recharge it

  24. Avataaar/Circle Created with python_avatars Henry Mong says:

    I am taking out the entire ventilation system to the rear of my 2002 caravan. Could I do this same process onto the heat vents? Is there anything else that I need to do?

  25. Avataaar/Circle Created with python_avatars james parvin says:

    05 chevrolet venture entervan where is the rear blower motor resistor location at.

  26. Avataaar/Circle Created with python_avatars Smoked Robot Pâté says:

    Mr. O,
    Thank you for being a real OG dad and mechanic. You're a real stand-up guy.
    cheers!

  27. Avataaar/Circle Created with python_avatars You_Are_Cleared_Hot says:

    yup, the wife's 2016 explorer rear AC started leaking…don't feel like spending $1,600.00…so, block off it is.

  28. Avataaar/Circle Created with python_avatars I5H44N playZ says:

    Nice copy paste bruthor

  29. Avataaar/Circle Created with python_avatars Katie Rose Griffith says:

    Have you ever done a Rear AC block off for a 2011 Ford E350 shuttle bus? I'm having a hard time finding the proper parts. A recommendation would be great.

  30. Avataaar/Circle Created with python_avatars cet mohamed moore says:

    “You don’t wanna get an AC facial.” 😂

  31. Avataaar/Circle Created with python_avatars photondebuger45 says:

    I want me a ac recovery machine because everyone that wants me to ac work never wants to recover anything because it cost money. It does make me very mad too

  32. Avataaar/Circle Created with python_avatars Ade Norman says:

    'Snug'em up til they're….snug' 🙂

  33. Avataaar/Circle Created with python_avatars shinysideup says:

    Swagelok makes high quality SS fittings.

  34. Avataaar/Circle Created with python_avatars Patrick Mejlak says:

    Where is the drain pipe air conditioning ford transit connect panel van 2012 thanks

  35. Avataaar/Circle Created with python_avatars Bob's Barn Workshop says:

    I just cut off the rear AC loop in my 2001 Astro van. I cut the lines as close to the main loop as I could… I used caps that look just like what you used… The system had already been evacuated last year so I just bought a service kit with a vacuum pump and gauge set… worked great! Yeah, I put about 32oz of refrigerant in the smaller system. I also replaced the AC compressor, accumulator, condenser, orifice and all the O rings on all the fittings before I recharged it. I flushed all the lines with approved solvent too!

  36. Avataaar/Circle Created with python_avatars UAa320 says:

    eric is trying to find ghosts with that fancy equipment.

  37. Avataaar/Circle Created with python_avatars aterack833 says:

    “Oddly enough they don’t corrode out here” a reason for that could be that the wheel debris has a tendency to try to follow the movement of the wheel and will shoot off with a slight curve and upwards rather than straight up or straight back, that and like all corrosion related issues, it’s enclosed on most sides, what you really need is one of those dumb rear wiper bottles placed right around it as a shield with fluid dampening and a protective layer of fluid upon failure to protect