Volvo RWD 700 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 7/2016 700 INDEX

[<<]  [>>]


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

'service' warning light on after starting, whether hot or cold 700 1988

posted by  Vroom on  Mon Jun 3 17:17 CST 2002
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS] [RELATED]

I've been ignoring it for quite a while (few mos.) so I pull the intake manifold and take out the coolant temp sensor under the 3rd intake runner and do a resistance test in cold to hot water comparing it to my spare. Both checked out exactly according to the info in the FAQs. I put things together and same thing, dosen't matter if it's hot or cold the "service" light comes on for the first 5-10 mins of driving. The only effect I have noticed is that between cold and hot operation the engine is a little unresponsive in the off idle to mid range (I never like to stomp it till well warmed up). The tail pipe is showing a lot more soot than I think is healthy (rich).
--
88 765 w/2stage boost (TO.)






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New 'service' warning light on after starting, whether hot or cold [700][1988]
posted by  Vroom  on Mon Jun 3 17:17 CST 2002 >


<< < > >>



©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.