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

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Littlelegs
Posts: 5
Joined: 01 Jun 2020, 12:59
Year and Model: V70 T5 2001
Location: East Anglia

Post by Littlelegs »

Hi everyone, so this is my first forum ever ! Please be patient with me ๐Ÿ™

I have recently purchased a V70 T5 2001 manual ... it has a few issues of which Iโ€™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 itโ€™s perfect. I have good pressure at the rail, Iโ€™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

vtl
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Post by vtl »

Old starter may create a lot of interference in crankshaft position sensor. ECU does not see CPS -> does not know when to start firing.

Littlelegs
Posts: 5
Joined: 01 Jun 2020, 12:59
Year and Model: V70 T5 2001
Location: East Anglia

Post by Littlelegs »

Thanks for that, will be my next job ๐Ÿ‘

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darrylrobert
Posts: 472
Joined: 06 Mar 2020, 06:25
Year and Model: 2001 v70xc M58
Location: australia
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Post by darrylrobert »

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.
1981 260 GLE converted to 240 M46 after auto box failure
1987 740t auto converted to M47
1997 V70t5 auto converted to M56
1998 V70 factory M56 (parts car)
2001 XC70 factory M58
2002 XC70 auto (parts car)

Littlelegs
Posts: 5
Joined: 01 Jun 2020, 12:59
Year and Model: V70 T5 2001
Location: East Anglia

Post by Littlelegs »

Hi there
Thanks for the reply.... I should have added that Iโ€™ve changed the halo as the very first job. Also Iโ€™m in England so 25c doesnโ€™t happen that often ๐Ÿ˜‚๐Ÿคฃ๐Ÿ˜‚
Iโ€™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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Joined: 06 Mar 2020, 06:25
Year and Model: 2001 v70xc M58
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Post by darrylrobert »

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.
1981 260 GLE converted to 240 M46 after auto box failure
1987 740t auto converted to M47
1997 V70t5 auto converted to M56
1998 V70 factory M56 (parts car)
2001 XC70 factory M58
2002 XC70 auto (parts car)

Littlelegs
Posts: 5
Joined: 01 Jun 2020, 12:59
Year and Model: V70 T5 2001
Location: East Anglia

Post by Littlelegs »

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
Posts: 472
Joined: 06 Mar 2020, 06:25
Year and Model: 2001 v70xc M58
Location: australia
Has thanked: 4 times
Been thanked: 27 times

Post by darrylrobert »

Nice, when you had the starter out did you notice any build up of what looks like clutch disk material in the bellhousing?
1981 260 GLE converted to 240 M46 after auto box failure
1987 740t auto converted to M47
1997 V70t5 auto converted to M56
1998 V70 factory M56 (parts car)
2001 XC70 factory M58
2002 XC70 auto (parts car)

Littlelegs
Posts: 5
Joined: 01 Jun 2020, 12:59
Year and Model: V70 T5 2001
Location: East Anglia

Post by Littlelegs »

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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