Iv'e replaced my alternater yesterday for the 4th time in 4yrs. Is this really just a " Volvo problem" if not, whats the likely cause. I remove and charge my Battery 2 times daily to get to work and home. otherwise i'll need a jump.
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Re: 1986 volvo DL wagon
When you place key into the ignition and turn to "on" position, do you see your alt. light come on? If not, this is the cause of the charging problem. The current has to flow through this light and back to battery to complete the circuit.
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This is common to the AW70 transmission when the rear bushing has been left very worn for a period of time. The rear shaft wear heavily on the main transmission housing causing the pressure not to build enough to engage the overdrive gear.
You do not need a simple "solution" from an online forum. What you need is detailed service information. I would recommend spending the small fee (under $30/year) and subscribing to the service information for your vehicle at alldatadiy.com. There. you will find step-by-step instructions along with diagrams and lists of any special tools needed to complete the task.
you can pick up a manual at a auto parts store for around 20 bucks. it has diagrams and schematics with step by step instructions for a multitude of problems and is a good investment. it will save you shop labor in the long run. please rate this thanks
Down the side of the Engine where the Alternator is there should be a few wires.
1 goes to the oil pressure sensor
Another few wires go to the Alternator there are 2 circuits one is for charging which is a little thicker which is bolted under a nut & a few smaller wires which do 2 things.There is a low current circuit that applies 12v to one side of the battery lamp on the dash & when the enging is running this 12v is on the lamp & the 12v from the battery is on the other side so the lamp is out .
If the alternater isn't turning 0 volts is coming from the alternator & the Battery lamp is on.
These smaller diameter wires are important for the monitoring & charging the battery.
If you can't get the battery lamp & other monitoring lamps on the dash to illuminate when turning the key around to run not start your going to have battery charging problems.
I suggest you check the black plastic insulation carring these wires in them may be cracked or broken.
I own a few 240 series volvo's & I think I have had just about every electrical problem possible.
you have a power drain somewher.
unplug your battery " positive " , wait a few seconds.
put the connector back to the battery and see if it sparks, if it does there is something shorted out and draining your power. probably your alternator was good.
if there is no sparks thencould be your voltage regulator or your battery.
let me kniow
Reuben, did you recieve my last email about trouble shooting your problem? I sent it a while back but I'm not sure if you received it because it doesn't show on the site here. Let me know so I can re-send. Thanks