Volvo RWD 700 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 12/2024 700 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

Turbo Boost Gauge not working 700 1989

posted by  NewMexico240 on  Tue Oct 15 17:19 CST 2019
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Oct 24 11:52 CST 2014
[RELATED]

Hello - My Turbo Gauge on my 1989 780 is not working, where does the hose come into the engine compartment through the fire wall? I'm wanting to trace it to see if it is leaking, cut or not connected. I didn't want to remove the instrument cluster for fear of any damage to it. Thanks in advance.








  •   REPLY TO THIS MESSAGE    PRINT   SAVE 

    Turbo Boost Gauge not working 700 1989

    posted by  Nahtanha on  Tue Nov 5 17:26 CST 2019
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Tue May 20 10:10 CST 2014
    [RELATED]

    Vacuum line from manifold to the gauge. It tends to fail in the engine compartment due to age ,heat, road elements. I just spliced a new piece 6 in from the fire wall back to the vacuum nipple. You have to removed the engine side end and check it over.








  •   REPLY TO THIS MESSAGE    PRINT   SAVE 

    Turbo Boost Gauge not working 700 1989

    posted by  aleekat on  Wed Oct 16 10:32 CST 2019
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Fri Oct 24 13:19 CST 2014
    [RELATED]

    Look above the pedals for a vacuum line and "T" fitting. One goes to the gauge and the other runs to the overboost switch.
    --
    Post Back. That's whats makes this forum work.








    •   REPLY TO THIS MESSAGE    PRINT   SAVE 

      Turbo Boost Gauge not working 700 1989

      posted by  Nahtanha on  Tue Nov 5 17:22 CST 2019
      Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
      last visit: Tue May 20 10:10 CST 2014
      [RELATED]

      My problem on the boost gauge was the vacuum line to it. Old and cracked. I purchased a small barb fitting like on an air line for a fish aquarium and sliced in into the hose section that was still good.








    •   REPLY TO THIS MESSAGE    PRINT   SAVE 

      Turbo Boost Gauge not working 700 1989

      posted by  Nahtanha on  Tue Nov 5 17:21 CST 2019
      Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
      last visit: Tue May 20 10:10 CST 2014
      [RELATED]

      My problem on the boost gauge was the vacuum line to it. Old and cracked. I purchased a small barb fitting like on an air line for a fish aquarium and sliced in into the hose section that was still good.








    •   REPLY TO THIS MESSAGE    PRINT   SAVE 

      Turbo Boost Gauge not working 700 1989

      posted by  Nahtanha on  Tue Nov 5 17:21 CST 2019
      Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
      last visit: Tue May 20 10:10 CST 2014
      [RELATED]

      My problem on the boost gauge was the vacuum line to it. Old and cracked. I purchased a small barb fitting like on an air line for a fish aquarium and sliced in into the hose section that was still good.







<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.