Volvo RWD 700 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 9/2008 700 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE    PRINT   SAVE 

No start 740 fixed! 700

posted by  rabo on  Wed Nov 29 14:16 CST 2006
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Mon Jan 14 20:20 CST 2013
[RELATED]

It was the coil/square ignition unit! Even though I had a spark, it must have been too weak. A dirty ebay unit fixed problem on the spot.
Now I have a spare working computer and another spare coil which won,t hurt I quess.
Just one question: I have been starting a LOT without spark trying to solve this thing. Is my new synthetic oil diluted (degraded) now? Do I need to replace it?
Hope the thing will get me through winter.
Thanks for everyone who helped with this!!!!








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

    No start 740 fixed! 700

    posted by  TONY H on  Thu Nov 30 02:10 CST 2006
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Fri Oct 17 16:39 CST 2014
    [RELATED]

    You may have ahad a cylinder wash down situation from all the raw gas not burning. How Gassy does the dipstick smell?

    If it really smells like gas, I'd probably do the oil. sorry.

    --
    '75 Jeep CJ5 345Hp ChevyPwrd, two motorcycles, '85 Pickup: The '89 Volvo is the newest vehicle I own. it wasn't Volvos safety , it was Longevity that sold me








  •   REPLY TO THIS MESSAGE    PRINT   SAVE 

    No start 740 fixed! 700

    uid 18083's pic
    posted by  lucid on  Thu Nov 30 01:53 CST 2006
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Fri Oct 24 12:31 CST 2014
    [RELATED]

    Those Rex coil units seem to be a rare failure, based on my 3+ years here.

    Did you try removing just the coil first (2 torx screws) and clean the contacts?
    Or did you just swap the whole assembly, with the coil still mounted to the amplifier/heatsink?

    I just pre-emptively pulled the 940's coil and cleaned off the 2 terminals that connect to the amplifier. But now wonder if, like the Bosch "Power Stage" (amplifier), the Rex heatsink amplifier might be somewhat prone to heat-transfer problems caused by dried out thermal grease under the heatsink?

    Did you notice anything like that when you removed the old part to replace it?
    --
    Bruce Young
    '93 940-NA (current), 240s (one V8), 140s, 122s, since '63.








  •   REPLY TO THIS MESSAGE    PRINT   SAVE 

    No start 740 fixed! 700

    posted by  Rolyak on  Wed Nov 29 16:39 CST 2006
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Fri Oct 24 08:03 CST 2014
    [RELATED]

    If the oil level is higher and it smells like gas then change it. Other wise it will probably vaporize on a long drive.








    •   REPLY TO THIS MESSAGE    PRINT   SAVE 

      No start 740 fixed! 700

      posted by  rabo on  Thu Nov 30 13:18 CST 2006
      Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
      last visit: Mon Jan 14 20:20 CST 2013
      [RELATED]

      I cleaned and grinded the contacts several times .
      I don't know if the coil or the solid state is/was the problem. I bought another unit for $10 on ebay so I will have a spare .
      I,m so happy!! Heated seat car in winter!







<< < > >>



©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.