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Key sticking in ignition

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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shegarty
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Year and Model: 1998
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Key sticking in ignition

Post by shegarty »

Just a quick one ... the key seems to be randomly sticking in the ignition of my new to me 98 s70. It seems to be totally random and intermittent. When it happens it can be corrected by running through the start, transmission in drive, back in park and then shutdown sequence. Is it possibly connected to the shift interlock? My hope is that it is not the sign of a soon to fail ignition tumbler assembly. Any thoughts?
98 S70 T5 SE 298k km (daily)
87 740T sedan (current project)
previous - 90 745T; 94 855 T5

cn90
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Year and Model: 2004 V70 2.5T
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Post by cn90 »

Likely bad tumbler.

I sent you a PM.
2004 V70 2.5T 100K+
2005 XC90 2.5T 110K+

mikealder
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Joined: 25 October 2009
Year and Model: V70 2000
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Post by mikealder »

Is the release trigger sticking in on the auto selector knob, often this causes the key to become trapped, try flicking the trigger on the selector knob next time the key gets trapped - Best approach is to remove the gear knob and spray some PTFE lube spray (I use GT85 but not too sure if that is avail in the USA) in to the area around the trigger lever, work it in then clean up any excess spray before refitting to the car - Mike

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BEJinFbk
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Post by BEJinFbk »

Sticky shifter knob release button - Most common.
Sticky Shiftlock Override button - Usually not intermittent.

Or - just maybe -
The cable that both of the above are connected to the ignition switch with.
It can stretch over time, but may be adjusted at the shifter console end.

If none of these apply, you may be in for a new ignition lock. No Fun...

TriFlow - Great PTFE lube in the US.
'98 V70 R - Well Equipped for Life Up North... ;)

shegarty
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Year and Model: 1998
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Post by shegarty »

Preliminary analysis suggests ... A sticky shifter button. I checked it yesterday and noticed that it was not fully releasing. It has been lubed up with teflon spray and is now moving freely. If the problem doesn't return we can call it solved. Thanks once again for the insights.
98 S70 T5 SE 298k km (daily)
87 740T sedan (current project)
previous - 90 745T; 94 855 T5

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hanzbe420
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Year and Model: 2006 s60 2.5T
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Post by hanzbe420 »

i dunno if it was my 850 but under the steering wheel it was a trip release for the key or something if it gets stuck. look up on this cause it might of been a subaru lol. anyways gl

shegarty
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Year and Model: 1998
Location: port hope
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Post by shegarty »

Well, the lube only worked for a short period of time as the tabs holding the bottom pin in were completely busted. I was able to find two good replacement buttons (complete units) at the wreckers along with a few other bits and bobs. The replacement was pretty easy and because I had a complete unit on hand I decided to replace the whole thing instead of the just the button. There is a great write-up here on how to replace just the button (iPd also has instructions here) - once you remove the button you can simply pry out the other half of the mechanism with a screwdriver. As they say installation is the reverse of removal. Once again thanks to forum users for their input :D
98 S70 T5 SE 298k km (daily)
87 740T sedan (current project)
previous - 90 745T; 94 855 T5

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