Question about Volvo S40

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We have a second hand 2005 volvo S40. I have had alternator and battery changed in the past month an i'm having a issue with the wire that runs from the alternator to starter, it seem to be getting really hot in witch it runs straight to the battery an kills. i had checked all the ground wires an had also changed out that wire that runs from the alternator to the starter?? Need help!!

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Seems to me like a voltage meter would be a good place to start, to see just how much current is running through that wire. Check it in several key positions--off, on, starting, running. That should tell you a lot. It could be that power is being supplied at a time when it is not required. In which case, your ignition switch might be involved in the issue. Or a poor contact is making the wire act like an element instead of a conductor.

Posted on Oct 27, 2013

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5 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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Outofworkjoe
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SOURCE: Where does the ground wire connect to the

There is two bolts in the back,one small,and big one,just bolt them to these.

Posted on Jun 23, 2009

messstat
  • 365 Answers

SOURCE: 1995 Grand Am GT-3.1 Ltr. V-6: I am needing a

Most likely...seems like you have a handle on it. There may be wiring diagrams available, for example Chiltons manuals...To my knowledge there exists no "internal" wiring diagrams for alternators of any make.
Good Luck

Posted on Jun 28, 2009

  • 142 Answers

SOURCE: Fusible link wire gets really hot.

Removing the two smaller wires stops the exciter current to the alt which stops it charging.
Usually if a wire is getting hot its because:
A: Current overload..
B: Corrosion in wire restricting current.
C: Corroded terminal.

Posted on Jul 02, 2009

Mustgo
  • 2359 Answers

SOURCE: Misfire on #3

Re: 2000 Volvo S40 L4 1.9 Liter L4 1.9 Liter Turbo FI

Are you consider yourself a handy person?

Swap the coil and see is the misfire going to follow to another bank of cylinder.

You has total of 3 coil in your engine.

Do a detail record map and switch the two coils.

A replacement aftermarket coil is oil $46 w/one year warranty and $55 will get you a life time warrent coil.

Do the swap and see what happen.

A leaky/failing injector can also cause the same problem.


Do a Chevron Techron fuel injector clean ran and highway ran.

Good luck

Posted on Jul 15, 2009

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