I hade so many volvo s and most of them after winter driving gives me error on the dash says ecu needs maintenance % 99 problem was there is shutting off valfe under the cab salt water ice all goes in that shot off valve rust it out won t send volts to ecu also just under need there is ground cable bolt on frame what you have to do is get a can w40 spray inside the shot of valve a lot and spray on ground bolt and cable too and shot off and on 20 times that valve every other week do this plus clean battery cables and terminal s that s resolve the problems most problem s I was having crazy errors oil lights and constantly engine dies out of no where so do this and save lot of time and $$$$ thanks for reading. ...
All Volvo drivers read this will save you $$$$ thx...
Discussion in 'Volvo Forum' started by cemvolvo, May 9, 2014.
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HopeOverMope, Snailexpress, Johny41 and 1 other person Thank this.
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what model /year?
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2009 and up any model....
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all volvo trucks (COE and Conventionals) have fuses in battery box, one for engine ECM cummins (not used with Volvo engine), other for DPF ore DEF aftertreatment system and one for tachograph (in Europe and other countries where logbook is not used).
So, imagine how many volvos got in problems with rusty connections. -
I didn t get ur point I m talking about shot off valve not fuse box or fuse....
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I post it in wrong thread((( many tabs were open
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Thank you, cemvolvo.
You just saved my 450$ (shop asked for diagnostic only) and who know haw many for useless parts replacemnt.
Engine warn signals starts on more and more often. Then red stop engine starts flashing for few seconds with no reason. Oil pressure is good, coolant level and voltage. Codes all different from event to event. Shop says it's ECU, need deep diagnostic.
Got your post on TTR and next morning before turn truck to the shop decide to check my electrical system you suggested.
And wires connection to the battery terminals was loose, one negative wire was ready to disconnect. The batteries were not tight sitting and moving. Everything tighten up and no codes.
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