Question about 2004 Volvo S40
Check engine,abs,trac.control warning lights are all on and transmission shifts funny...when it shifts from 1st to 2nd high rpm's then slides in
Low transmission fluid. or Bands in transmission worn out or out of adjustment. Get transmission serviced ASAP
Posted on Apr 21, 2014
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Posted on Jan 02, 2017
First , it is necessary to check the voltage from the alternator :
14 V DC while engine on .
More than 14 V can set the electronic system on security mode :
then "TRACS" and "ABS" light on the dashboard.
Posted on Aug 16, 2009
SOURCE: Volvo abs lights stays on
Usually the ABS computer knows what it is doing. You may want someone to hookup a scanner to the ABS test port.
When I had my speedometer and odometer act up, it turned out to be a bad alternator. You might want to check yours.
Posted on Jul 25, 2009
Your problem is NOT a fuse. The speedometer receives an electronic signal from an analogue transmitter mounted in the rear differential. It's the little button in the rear diff with two wires attached to it. Check to see if the wiring is chaffed or broken. If not, then it's probably the transmitter. A competent mechanic should be able to replace one for less than 200.00, parts and labor. If this does not fix it, then the problem is in the head, which can be expensive. You might get a used head if you can get a 90 day guarrantee on the part from the salvage company.
Posted on Oct 21, 2008
Sounds like a bad ABS control module is at least part of your problem. The symptoms are usually and ABS and TRACS light intermittent or constand and eventually your speedometer works intermittently or totally quits. This guy rebuilds/upgrades them for about $140. New ones run over $800. http://home.earthlink.net/~vicrocha/Volvo_Parts/Volvo_ABS_removal.htm
Posted on Oct 21, 2009
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