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Username Post: Sticking accelerator pedal 67 Impala        (Topic#360313)
Posts: 7

Reg: 09-11-14
03-29-20 08:04 AM - Post#2789705    

Hey everyone,

I have a 67 Impala that recently had the accelerator pedal get stuck down (in Park, thank goodness). The throttle linkage seems to move freely and rebound correctly.

The only thing that seems to truly "stick" is the bar underneath the accelerator pedal. It gets stuck down even though the throttle seems to be springing back properly.

I see where the throttle body and this "bar" connect around the firewall. Is there a bushing or something in there that may have given way?

Looks like a bit of a pain to get to so thought I'd consult the collective experience here before digging in.

I can add pictures if it will help troubleshoot.



Posts: 145
Loc: Vancouver, B.C.
Reg: 11-22-05
03-30-20 09:52 AM - Post#2789807    
    In response to Waggcat

Check for throttle linkage interference with spark plug wires hanging low leaving the distributor cap. My linkage hung up on a wire once. Also, how are the carb bushings? QJets often incur binding from worn throttle shaft bushings in the carb. Remove return spring and check operation. Smooth operation and returns? A few ideas to start with. Good luck. A problem that needs resolution!!

For the pedal. I'm going to have to look at my car. It's in isolation right now off site.

1967 Impala SS. 327-Turbo 400; 12 bolt-3.55 gears. A few photos of my '67.

1972 Corvette Convertible Mille Miglia Red 4 speed.

1963 Cadillac Eldo-Triple Black.

Posts: 7

Reg: 09-11-14
03-30-20 05:02 PM - Post#2789843    
    In response to astrojet427

Appreciate the response, but I tried to explain in the original post that the throttle linkage itself is smooth as butter when I manipulate it from the engine compartment. It is just the accelerator pedal (really just the bar under it) that is sticking down.

It looks like there is a bushing of sorts in the pivot point that is mounted on the firewall. See link: astic...

I am likely to tear into that area on the firewall (carefully) and see if it looks like this may be the culprit.

Member #212 "19th Year" Gold Supporting Member
Posts: 2340
Age: 59
Loc: Surprise Az USA
Reg: 04-07-00
03-31-20 06:45 PM - Post#2789943    
    In response to Waggcat

I would start by disconnecting the rod to the arm on cowl, see if there is resistance … you would feel it.

either them bushings, or possibly the accelerator pedals back side plastic is shot?

the darn thing can be a pain in arse though

Attachment: 2.5.jpg (373.16 KB) 7 View(s)

This is a long job,,,, they always snowball

Attachment: 2.jpg (545.14 KB) 6 View(s)

Attachment: 3.JPG (305.89 KB) 7 View(s)

all because of a sticky pedal

Bill H.
67 Impala SS

Posts: 7

Reg: 09-11-14
04-01-20 07:52 AM - Post#2789976    
    In response to 59fins

Thanks, Bill (and sweet looking 67 from the photos.

I have been a bit under the weather, but plan to dive into this birds nest soon


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