Electrical: - V40 power surging - Volvo Owners Club Forum

		Volvo Owners Club Forum > "Technical Topics" > S40 / V40 '96-'04 General
Electrical: V40 power surging

S40 / V40 '96-'04 General Forum for the Volvo S40 and V40 (Classic) Series from 1995-2004.

VOC Members: There is no login facility using your VOC membership number or the details from page 3 of the club magazine. You need to register in the normal way
AOL Customers: Make sure you check the 'Remember me' check box otherwise the AOL system may log you out during the session. This is a known issue with AOL.
AOL, Yahoo and Plus.net users. Forum owners such as us are finding that AOL, Yahoo and Plus.net are blocking a lot of email generated from forums. This may mean your registration activation and other emails will not get to you, or they may appear in your spam mailbox

Thread Informations

Replies : 7

Users Viewing This Thread :

Thread Tools

Apr 13th, 2018, 23:14	#1
Antharro New Member Last Online: Aug 16th, 2018 01:21 Join Date: Sep 2017 Location: "The South"	V40 power surging Another problem my V40 has - voltage surging! Only happens when warm or hot. I'll be driving along happily and a load of warning lights come on on the dash - parking brake, info, SRS, washer bottle level, etc. The headlights become brighter, the fan runs faster, the wipers run faster, the dash lights up like a Christmas tree, and sometimes the radio turns off, presumably to protect itself. My feeling on this is the voltage regulator is on its way out - the alternator is obviously providing voltage, but the regulator can't keep it at 14v. Does this sound right? If so, would this item on eBay do the job? And if so, where do I fit it? There looks to be a cover on the back of the alternator where the wires are attached; presumably I remove this and I'll find it inside, bolted to the back of the alternator? Any help appreciated! Last edited by Antharro; Apr 13th, 2018 at 23:17.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Forum Rules

Forum Jump

All times are GMT +1. The time now is 06:33.