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turbo gauge not working

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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fatumn
Posts: 5
Joined: 21 October 2009
Year and Model: 1995 volvo 850 turbo
Location: hendersonville, TN

turbo gauge not working

Post by fatumn »

My turbo gauge is no longer working. I hear the turbo running but the gauge just doesnt move. All my other gauges work just not the turbo. just wondering how to fix it.

Thanks
Fatumn

FlyingVolvo
Posts: 1822
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Year and Model: 2000 V70XC
Location: USA
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Post by FlyingVolvo »

Did you check the simple stuff?

Did it get disconnected somewhere? Is there a kink in the line somewhere?
2000 V70XC - 340,000 miles
Hilton Tune, 16T Turbo, Mototec 3" downpipe, Blue injectors, IPD Short Ram Filter, Snabb Intake Piping & RIP kit, do88 Intercooler, TME Dual Exhaust, HID Projectors, R Panels, do88 Silicone Hoses

2023 V60 T8 PE

fatumn
Posts: 5
Joined: 21 October 2009
Year and Model: 1995 volvo 850 turbo
Location: hendersonville, TN

Post by fatumn »

all the hoses are fine disconnected and reconnected everything it all seems in working order just the gauge doesnt work

BIG DOG
Posts: 107
Joined: 8 October 2009
Year and Model: 1996 855 turbo 5spd
Location: Nova Scotia Canada

Post by BIG DOG »

Double check under the cold air inlet for the air box that's where mine had come apart as there is a joint there.If it's not a bad air line I can't help sorry.

polskamafia mjl
Posts: 2640
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Year and Model: 1995 Volvo 854 T-5R
Location: Hershey, PA
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Post by polskamafia mjl »

Have you taken the console out recently? I've heard of people braking the gauge accidentally while they were fixing the odometer or replacing bulbs.
'All my money is gone and I have an old Volvo.' - Bamse's Turbo Underpants

Current: 1995 Volvo 850 T-5R Manual - Bringing it back from the brink of death
Previous: 1996 Volvo 850 GLT - Totaled

9394volvo850s
Posts: 239
Joined: 12 October 2009
Year and Model: 93 850 5spd 94 850T5
Location: New York

Post by 9394volvo850s »

yea mine cam off the gauge too. check there
93 850 5spd 320k (the daily)
94 850 T5 190K (race car)
95 T-5R wagon yellow (summer wag)
90 745 5spd 295k (winter wag)
67 122 2 door 4spd 69k :))

outdoor7or24
Posts: 155
Joined: 30 December 2008
Year and Model: SOLD 95 855t,93 945t
Location: S GA

Post by outdoor7or24 »

I have had issues with the vacuum line coming off the vacuum tree. A zip tie helped keeped the elbow snug and it has not pop'd off yet.
You could hear the vacuum sucking air.

Maybe look at that or listen for a line that sounds like it is sucking air.

fatumn
Posts: 5
Joined: 21 October 2009
Year and Model: 1995 volvo 850 turbo
Location: hendersonville, TN

Post by fatumn »

I will check out all that today. Thanks for the responses

salts850
Posts: 81
Joined: 10 March 2009
Year and Model: 95 850t
Location: MI

Post by salts850 »

I did the odometer gear this weekend and the needle for the guage fell off on me. I put it back on,but it kept falling off after it was assembled. I pushed it on pretty good, but now the needle doesn't work. There is a little space between needle and ipc face. Anyone know what I ruined??

Ozark Lee
MVS Moderator
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Post by Ozark Lee »

If you didn't remove the brass nut on the back of the boost gauge before you pried the cluster open then it came apart internally inside of the instrument cluster. Sometimes you can re-center it in its bearings and recover but if it completely broke you can't.

...Lee
'94 850 N/A 5 speed
'96 Platinum Edition Turbo
Previous:
1999 V70XC - Nautic Blue - Totaled while parked.
1999 V70XC - RIP - Wrecked Parts Car.
1998 S70 T5
1996 850 N/A
1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe

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