Question about Volvo V40

1 Answer

Electrical fault somewhere

I have a volvo s40 1998 and i have a light that came on, whilst driving, on the dashboard it is like a 'y' but upside down, then all the other lights came on like engine management, battery, airbags etc. i found out that the light that came on first means there is an electrical fault. i have taken the alternator off but i dont think there is anything wrong with it. anybody got any solutions?

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

Hi,
I think the problem is not the alternator but the conection in the 120Amp fuse to the main engine fuse box.
The actual contacts to the spade fuse are enclosed and the contact area cannot be cleaned (scraped) easily. The fuse does not pull out like the rest but is bolted in with two bolts (one 8mm and one 10mm) No one knows this at first, release the bolts on either side and work the spade fuse up and down many times to score the contact area.
When I first tested it it was showing some 20 ohms with a high impedance meter but after it was cleaned it showed close enough to zero.
The high resistance connection on the 120Amp fuse may have caused a volt drop (with all systems on ie engine, air, wipers, and headlights) sufficient to drop out the engine relay and it conk it out. It starts again readily but the low voltage may cause the stop light warning light to come on.
Volvo had the car for two weeks and couln't fault it after I did the clean and replaced the engine relay - but they didn't charge me - so good on them. They quoted me $1400 to fit a new alternator saying they had seen the problem before and they replaced the alternator and the cable which may have inadvertantly fixed the bad connection on the 120Amp fuse.
I worked for Volvo Truck for a couple of years as a contract Production Engineer but when sales went down I was moved on - guess I was too much of a smart arse. Renault owns them now - predictable I should have thought.

Posted on Feb 20, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get to try the service completely Free afterwhich it costs $6 per call and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

THE ENGINE MANAGEMENT LIGHT on my volvo S80 COMES ON OCCASIONALY AND SAYS THAT THE CAR NEEDS AN ALARM SERVICE BUT DOES NOT DETRACT FROM THE DRIVE OF THE CAR


It won't detract until you ignore it long enough and the engine immobiliser fails and leaves you stranded.

Do as your car is telling you and get it to a Volvo dealer. Preventing the fault will likely cost less and certainly be less inconvenient and dangerous than having it occur whilst driving.

May 27, 2010 | 2000 Volvo S80

1 Answer

1997 Mk 3 Golf GTI. Engine cuts whilst driving. Electrical?


try removing battery and cleaning all the ground under the battery tray and check main ground wire from battery to engine

Aug 20, 2009 | Volkswagen Golf Cars & Trucks

1 Answer

I have a light on dashboard it is a triangle with what looks like a y upside down in the bottom right hand cornor


Its called a Lambda light, its the same thing as a check engine light, but for non-US markets, usually from Canada

Jul 31, 2009 | 2000 Volvo S40

1 Answer

Warning light


Hey Mary!
Does the symbol look like an upside down y? If so it is the lambda sign (the elleventh character of the greek alphabet), meaning that there is something fishy going on with the emissions part of the cars engine management.
Try to disconnect the battery over night and see if it goes away. If not you could bring the car by the local Volvo garage and have them read fault codes and reset them for you, usually without cost.
I'm thinking that it might somehow have been triggered by the towing, and that it will go away when reset. I would therefore advice you not to do any repairs before you've tried having the codes cleared and driving around for a while to see if the light reappears.
Good luck!

Jun 01, 2009 | 1995 Volvo 850

1 Answer

850 Volvo dashboard lights wont work.


DASH LIGHTS ON 850 VOLVOS SOMETIMES THEY DONT MAKE A GOOD CONTCACT I REPLACED MY ISTRUMENT CLUSTER AND HAD TO TKE IT OUT 4 TIMES AND PUT ELECTRICAL GREASE ON BULBS AND CHECK THE DIMMER SWITCH IS ALL THE WAY TO THE RIGHT OR THE HEADLIGHT SWITCH PLUG

Mar 07, 2009 | 1995 Volvo 850

2 Answers

Maintenance light reset


Hi,
I've reset this particular model I held down tripmeter button turned on ignition whilst still holding it down for 20 seconds at least then Bingo sorted.
If unsure hold all buttons on speedo face down.
Good Luck!
Paul 'W'
Onyer~EDson(:0) {#><U.K.

Jan 18, 2009 | 2006 Volvo S40

1 Answer

Driving along in my '88 Volvo 740 - all warning lights go on!


My first thoughts are with the battery cables, or the alternator. You probably had the heater, wiper and maybe the lights on? That's a big load on the electrical system. Have the battery and charging system checked out! It's common on this model for the alternator brushes to wear out and the good thing is that they can be replaced separately of the alternator.

Dec 18, 2008 | 1988 Volvo 740

1 Answer

Dashboard instement lights shut down


Sounds like your instrument cluster is going bad. Try this site for a remanufactured unit. http://www.bba-reman.com/

Nov 22, 2008 | 2004 Volvo S60

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

407 people viewed this question

Ask a Question

Usually answered in minutes!

Top Volvo Experts

yadayada
yadayada

Level 3 Expert

76630 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8499 Answers

Are you a Volvo Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...