Starter Motor issue - 98 S70

NicksVolvo · Post by **NicksVolvo** » 08 Jul 2011, 21:01

I had tagged on an older thread and am starting a new one per the suggestion of another member.

I replaced the starter motor on my 98 S70 and it continues to spin after the car is started. Every thing else seems to function just fine.

Some history.

I bought the car about a year and a half ago and it had/has an ignition key that sometimes spins 180 degrees but engages after one-half rotation and continues to work. The other day the car would not start and I thought it was finally the ignition key. I manually moved the car and after this it started, since I moved it I thought it may have been the motor so I replaced it. After replacement it starts fine except the starter motor continues to spin after starting. I have checked all of the connections and they are good. I purchased a rebuilt starter from Pep Boys and took the original one back and got another one and it does the same thing.

Working up stream I switched the starter relay with the engine relay (they are the same) and the symptoms are the same. I noticed after I started the car that after a few seconds the starter motor starts to spin up faster as you can hear its revs increase. (engine motor is idling) I put a voltage meter on one of the motor poles and the voltage increases from around 8V up to 12V as the motor starts to spin faster.

I am thinking that it may be the switch assembly, but one member suggested that I get an OEM starter first.

Any other ideas are appreciated. Eventually I will probably have to replace the ignition key so I am thinking about doing this next.

Thanks!

Post by **BEJinFbk** » 08 Jul 2011, 21:21

You have a bad ignition switch.
Replace it.
And if you still have the original starter,
I'd consider putting it back in. It's probably
much better quality than the rebuild.

NicksVolvo · Post by **NicksVolvo** » 28 Aug 2011, 16:43

This took awhile but after replacing the ignition switch the starter motor still spins after the car is started. It is has a strange sound in that it appears to spin up faster after the SRS and other lights go off right after starting the car.

As near as I can tell it must be: 1) Pep boys rebuilt starters don't work. (2 do the same thing) 2) Something else electrical

Any ideas as this is a strange one...

Post by **BEJinFbk** » 28 Aug 2011, 17:17

Did you replace the entire ignition switch?
Or just the electrical portion?

NicksVolvo · Post by **NicksVolvo** » 28 Aug 2011, 17:47

I replaced both the switch and the mechanical portion and both are functioning perfectly. I can't think of what would be causing the the system put current to the starter motor after starting but this appears what is going one. I took the relay out after starting the car and this had no effect.

I am also trying to think of what would be the difference between a Pep boys rebuilt and an OEM version. Impeddence? Would this cause it to spin?