Login Register

Stuck Throttle (Major Problem)

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

Post Reply
Ozark Lee
MVS Moderator
Posts: 14798
Joined: 7 September 2006
Year and Model: Many Volvos
Location: USA Midwest
Has thanked: 4 times
Been thanked: 75 times

Re: Stuck Throttle (Major Problem)

Post by Ozark Lee »

Get a can of lithium spray grease and hit all of the pivot points. The squeak sounds much like it is coming from the bearing on the throttle body. You can pick up the spray grease at any auto parts store.

Beyond that check the hose from the idle air control valve to make sure it hasn't split.

...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

turbozutek
Posts: 156
Joined: 14 April 2011
Year and Model: 1995 850 GLE
Location: Glasgow

Post by turbozutek »

Yeah if it's revving its tits off after checking the throttle plate is closing (which you've done perfectly in your video) there must be an air leak somewhere past the plate?

I'd check the vacuum tree and any other pipes that come out of the inlet manifold. I also think there's a freeze plug at the left side (the side furthest from the throttle plate) of it somewhere that might be worth checking too.

Chris...

Fish stick88
Posts: 543
Joined: 24 June 2010
Year and Model: 1994 - 850 Sedan
Location: Iowa

Post by Fish stick88 »

Chris, The only code i am receiving is the EGR code. Im guessing the EGR is completely plugged up. if i get that cleaned up, as well as my intake and throttle body. do you think my air flows will increase? If suction is the issue here. Wouldnt it go back to its position after stopped the car? It didnt when it happened. Unless it got opened then gunked open?
Drove my car today with almost no problems, it seems to be a little quicker on the foot.
Speed has never killed anyone, suddenly becoming stationary... That's what gets you.

'94 850 Sedan - 160k miles

Post Reply
  • Similar Topics
    Replies
    Views
    Last post