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Crank no start...... but will start

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive "P2" platform cars.

2001 - 2007 V70
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Littlelegs
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Year and Model: V70 T5 2001
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Crank no start...... but will start

Post by Littlelegs » Mon Jun 01, 2020 1:11 pm

Hi everyone, so this is my first forum ever ! Please be patient with me 🙏

I have recently purchased a V70 T5 2001 manual ... it has a few issues of which I’m working my way through.
The biggest issue I have at the moment is .. it will crank but no start.... however if you mess with the cranking times with the key it will start. Once started it’s perfect. I have good pressure at the rail, I’ve changed all injectors, it has a new crankshaft position sensor, a new cam sensor, new battery.
Any ideas where to go next.... many thanks

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vtl
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Re: Crank no start...... but will start

Post by vtl » Mon Jun 01, 2020 6:10 pm

Old starter may create a lot of interference in crankshaft position sensor. ECU does not see CPS -> does not know when to start firing.
05 XC70 265k, 16 XC60 45k, 19 Tundra 5k

Littlelegs
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Year and Model: V70 T5 2001
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Littlelegs

Re: Crank no start...... but will start

Post by Littlelegs » Mon Jun 01, 2020 9:46 pm

Thanks for that, will be my next job 👍

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darrylrobert
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Re: Crank no start...... but will start

Post by darrylrobert » Thu Jun 04, 2020 9:29 pm

Interference is most likely. does it do it in hot weather? above 25c. Have you had the "start inhibited try again" message then check the key transponder/imobiliser.

Littlelegs
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Littlelegs

Re: Crank no start...... but will start

Post by Littlelegs » Thu Jun 04, 2020 9:58 pm

Hi there
Thanks for the reply.... I should have added that I’ve changed the halo as the very first job. Also I’m in England so 25c doesn’t happen that often 😂🤣😂
I’m waiting for delivery of my new starter and will let you know how it goes. Thanks again

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darrylrobert
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Re: Crank no start...... but will start

Post by darrylrobert » Fri Jun 05, 2020 1:05 am

I dont think its the starter as much as the Crank sensor wiring that goes near it. If my car continues to exibit this "hard starting" that will be my next attempt at a fix. Also removing the ECM and cleaning the pins.

Littlelegs
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Re: Crank no start...... but will start

Post by Littlelegs » Mon Jun 08, 2020 2:24 am

Hi everyone
Just an update.... many thanks for the advice on the starter motor.... have changed it for a new one.... instant starting.....
Many thanks
Steve

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darrylrobert
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Re: Crank no start...... but will start

Post by darrylrobert » Mon Jun 08, 2020 2:31 am

Nice, when you had the starter out did you notice any build up of what looks like clutch disk material in the bellhousing?

Littlelegs
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Year and Model: V70 T5 2001
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Re: Crank no start...... but will start

Post by Littlelegs » Mon Jun 08, 2020 2:55 am

Not to any great amount, flywheel teeth were a bit worn and getting the intercooler pipe back on the throttle body was a pig.....

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