Stiff gas pedal - ZR-1 Net Registry Forums

RiceEatingZR1 · 08-25-2009

I took my car out on Sunday and noticed that my gas pedal was really stiff and hard to push down, its esay to push until about a 1/4 the way then it gets really stiff. any idea what could cause this?

Jagdpanzer · 08-25-2009

Underused??

Aurora40 · 08-25-2009

The throttle plates are progressive, with the first maybe 20% opening just the small primary throttle plate. Then you start to open the secondary plates after that, which are much bigger and have a much stiffer spring.

So to some degree that difference is normal, but perhaps the overall force you are feeling isn't. Open the TB by hand and see if it is abnormally stiff, if not, maybe the cable isn't moving freely?

John Boothby · 08-25-2009

This sounds too simple, but check to see if the throttle is rubbing against the tranny tunnel. Then check the throttle cables. They should have two clamps securing them to the top of the plenum. Then check the throttle body. You may have to remove the cover to check that the cables are properly connected to the throttle plate cams or rod. It could also be that the throttle plates are binding in the throttle body.

Ccmano · 08-25-2009

Have you been hiding your Viagra in the gas tank? I hear that can make the pedal stiff...

If it stays stiff for more than 4 hours consult a doctor. That's what it says on my package.
H

Pqtaces · 08-25-2009

30 mins with the subject of one of Jeffvette's avitars is the perfect cure for a stiff pedal...

FU · 08-25-2009

Quote:

Originally Posted by Ccmano

If it stays stiff for more than 4 hours consult a doctor. That's what it says on my package.
H

The Dr. is the last person I'd want to see !

08-25-2009	#1
RiceEatingZR1 Join Date: Feb 2004 Location: Aurora, IL Posts: 309	Stiff gas pedal I took my car out on Sunday and noticed that my gas pedal was really stiff and hard to push down, its esay to push until about a 1/4 the way then it gets really stiff. any idea what could cause this?

08-25-2009	#2
Jagdpanzer Join Date: Apr 2007 Location: Northern VA Posts: 2,649	Re: Stiff gas pedal Underused??

08-25-2009	#3
Aurora40 Join Date: May 2005 Location: Leesburg, VA Posts: 2,704	Re: Stiff gas pedal The throttle plates are progressive, with the first maybe 20% opening just the small primary throttle plate. Then you start to open the secondary plates after that, which are much bigger and have a much stiffer spring. So to some degree that difference is normal, but perhaps the overall force you are feeling isn't. Open the TB by hand and see if it is abnormally stiff, if not, maybe the cable isn't moving freely?

08-25-2009	#4
John Boothby Join Date: Jul 2005 Location: Las Vegas, Nevada Posts: 775	Re: Stiff gas pedal This sounds too simple, but check to see if the throttle is rubbing against the tranny tunnel. Then check the throttle cables. They should have two clamps securing them to the top of the plenum. Then check the throttle body. You may have to remove the cover to check that the cables are properly connected to the throttle plate cams or rod. It could also be that the throttle plates are binding in the throttle body.

08-25-2009	#5
Ccmano Join Date: Jun 2006 Location: Sparks, NV Posts: 2,843	Re: Stiff gas pedal Have you been hiding your Viagra in the gas tank? I hear that can make the pedal stiff... If it stays stiff for more than 4 hours consult a doctor. That's what it says on my package. H

08-25-2009	#6
Pqtaces Join Date: Jun 2009 Location: Glendale, CA Posts: 41	Re: Stiff gas pedal 30 mins with the subject of one of Jeffvette's avitars is the perfect cure for a stiff pedal...