Volvo RWD 700 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 12/2002 700 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

740 no spark, no wiring diagram! 700

posted by  cptvideo on  Tue Apr 6 09:54 CST 2004
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS] [RELATED]

Its the old 740 no-start, no-spark problem. I've read all about it here and elsewhere.

Mine is a '91 740 no-turbo sedan (Rex-Regina system). I've replaced the engine-speed sensor with a new one. No go. I've swapped the radio-suppession relay with the cooling fan relay. No go. I've tested the resistances in the coil and they're within normal limits.

I know that the power stage is suspect, but I don't know how to test it without going out and buying another. Is there a test for this thing? Or any way to descriminate between a power stage problem and an ECU problem?

Thanks, Craig






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New 740 no spark, no wiring diagram! [700]
posted by  cptvideo  on Tue Apr 6 09:54 CST 2004 >


<< < > >>



©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.