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#1 |
Registered User
Join Date: Jul 2007
Location: Stevens Point, WI
Posts: 29
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Throttle cable / gas pedal "stiffness"
I was wondering if this is just my ignorance of having an old vehicle or if there is something I can fix here.
The issue is that the gas pedal seems stiff when initially pressing it. After it's down for a little bit it has the same resistance as I am used to in driving a new vehicle. It's really noticeable when I'm in 2nd gear and initially hit the gas. I get a jerk in the throttle. The only way to remedy not jerking the tranny like this is ride the clutch a little bit but I don't want to continue to do this. I've already given the throttle spring some wd-40 and sprayed some on the accelerator pedal. Any thoughts or is this just the way these old trucks run?
__________________
################################# 1969 Chevy LWB / 2WD / 307 "You better take care of me Lord, or you'll have me on your hands..." - H.S.T |
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#2 |
Registered User
Join Date: Aug 2006
Location: Bakersfield,CA
Posts: 7,893
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Re: Throttle cable / gas pedal "stiffness"
these old carburated trucks are going to have a stiffer pedal than a new car, personally i like having the stiffer pedal and when i drive a new car it feels like theres nothing there
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-steven Alte Seele S.S. "Allison" '72 C/10 LWB 350SB/TH350 - DD PITBULL IS NOT A CRIME |
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#3 |
Used Register
Join Date: May 2005
Location: Live Oak, TX
Posts: 379
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Re: Throttle cable / gas pedal "stiffness"
May be due on the throttle return spring being too tight. You may be able to find another location to secure it or it may not be the correct spring - too short of a spring will cause a stiff pedal.
Herb |
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#4 |
Registered User
Join Date: Oct 2003
Location: San Jose Ca.
Posts: 3,335
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Re: Throttle cable / gas pedal "stiffness"
I ran into this myself and I agree with Greasmonkey72 I like the pedal stiffer. On mine it was due to a spring the width of 3/8s wrench and about 4-5 inches long.
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RIP to my son Dylan. 5/17/2002 - 8/18/2018 If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started. https://slothforpedcancer.org 68 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=223234 |
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#5 |
Active Member
![]() Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: Throttle cable / gas pedal "stiffness"
After you check all of the mentioned parts, I would disconnect the link to the carburetor and see if you still have a hesitation.
If you don't, suspect the butterfly shaft (name?) in the carburetor. I had one do that once and the carburetor shop fixed it. I think they replaced the shaft. Been a long time ago. You may also want to spray carb cleaner on the throttle body as you open and close the throttle in case you have some gummed up fuel in the carb throat. |
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#6 |
Registered User
Join Date: Jul 2007
Location: Stevens Point, WI
Posts: 29
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Re: Throttle cable / gas pedal "stiffness"
I will say that the spring coming off the throttle body looks like it's from a mattress. I'll see if I can find something OEM to replace it with.
__________________
################################# 1969 Chevy LWB / 2WD / 307 "You better take care of me Lord, or you'll have me on your hands..." - H.S.T |
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#7 | |
Registered User
Join Date: Jul 2007
Location: Stevens Point, WI
Posts: 29
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Re: Throttle cable / gas pedal "stiffness"
Quote:
__________________
################################# 1969 Chevy LWB / 2WD / 307 "You better take care of me Lord, or you'll have me on your hands..." - H.S.T |
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#8 |
Registered User
Join Date: Oct 2003
Location: San Jose Ca.
Posts: 3,335
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Re: Throttle cable / gas pedal "stiffness"
That was a stock spring. I thought it wasnt so I asked a guy who rebuilds carbs. Said that they were that big on most 68s.
__________________
RIP to my son Dylan. 5/17/2002 - 8/18/2018 If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started. https://slothforpedcancer.org 68 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=223234 |
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#9 |
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: Throttle cable / gas pedal "stiffness"
sometimes 40year old parts work easier if they are cleaned and lubricated. star at the foot pedal and go to the carb
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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#10 |
Registered User
Join Date: Jul 2007
Location: Stevens Point, WI
Posts: 29
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Re: Throttle cable / gas pedal "stiffness"
True enough. Thanks!
__________________
################################# 1969 Chevy LWB / 2WD / 307 "You better take care of me Lord, or you'll have me on your hands..." - H.S.T |
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#11 |
Registered User
Join Date: May 2006
Location: Jonesboro, AR
Posts: 916
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Re: Throttle cable / gas pedal "stiffness"
My son's 69 had the same problem. It was the pedal surface that slides on the throttle arm. We used some lithium grease and it helped but didn't completely eliminate it. Check where they contact and like cdowns said, move to the carb.
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#12 |
Registered User
Join Date: May 2005
Location: PA
Posts: 2,696
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Re: Throttle cable / gas pedal "stiffness"
My gas pedal was simply worn out where the rod contacted the plastic pedal, and the ball studs/sockets that connected the pedal to the floor were shot too. I replaced the gas pedal for less than 10 bucks, and it's smooth as silk now
![]() Mine used to stick right when I'd go to hit the pedal... once I got it off an idle, it was fine. I actually drove with no pedal for a while because it was driving me crazy. |
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#13 |
Registered User
Join Date: Sep 2006
Location: Canada
Posts: 54
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Re: Throttle cable / gas pedal "stiffness"
some day you will yearn for stiffness LOL sorry I had too
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