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A "boing" noise from my S70

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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Gary
Posts: 3
Joined: 7 January 2004
Year and Model:
Location:

A "boing" noise from my S70

Post by Gary »

Whenever I go over a speed bump or hit a pot hole, I get a very loud "BOING" noise from the underside of the rear of the car. It almost sounds like a spring letting go. Does anyone have a clue as to the cause of this noise?

mrreilly
Posts: 259
Joined: 3 August 2006
Year and Model: 1998 Volvo S70 GLT
Location: Notheast, Ohio

Post by mrreilly »

I've had that same thing happen to me. But mine sounded like the front of the car. It was right after I replaced the spring seat... I'm still clueless...
1998 Volvo S70 GLT Black/Tan
Approx. 173,000 3/27/2010
My major repairs:
Timing Belt, Left&Right Control Arms, Tie-rod ends, Lower Engine Mount, Engine Stabilizer Mount, IPD Sway Bar Links, Brakes , Head Gasket, PCV System, Turbo Rebuild, and more

MadeInJapan
MVS Moderator
Posts: 13434
Joined: 31 March 2005
Year and Model: '98 S70 T5 '07S40T5
Location: Knoxville, TN American but born in Japan
Has thanked: 17 times
Been thanked: 35 times

Post by MadeInJapan »

It'll make that sound if ABS kicks in while driving over 2 surfaces which are different and braking (left side of car is on a difernt type of surface than the right). Also, if you brake as you go over bumps, it might engage.
'98 S70 T5 Emrld Grn Met/Beige Tons of Upgrades Mobil-1
'04 V70 2.5T Red/Taupe Some Upgrades Mobil-1
'07 S40 T5 AWD 6 speed manual! Silver/Black Stage1 Heico & Elevate
'07 S60 2.5T Blue/Taupe- my kid's Volvo

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