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gas pedal sticking by I wear pants
Started on: 07-30-2005 01:08 AM
Replies: 14
Last post by: I wear pants on 09-27-2005 08:37 PM
I wear pants
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Report this Post07-30-2005 01:08 AM Click Here to See the Profile for I wear pantsSend a Private Message to I wear pantsDirect Link to This Post
My gas pedal sticks at the bottom of the pedal so when I press on it sometimes I will have to push hard to get past where it is sticking. Its is really annoying cause my car is a stick and when I am taking off I have to rev the engine up to get it past where it sticks. I know my discription kinda sucks but i dont know any other way to put it. Does anybody know what might be causing this??
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Hairy_Fiero
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Report this Post07-30-2005 01:14 AM Click Here to See the Profile for Hairy_FieroSend a Private Message to Hairy_FieroDirect Link to This Post
Probably need to oil the spring on the throttle linkage on the throttle body. Spray the spring real well while pulling the throttle cable with your hand. Could be a bad throttle cable itself, sometimes the jacket gets worn out and the linkage won't fully suspend. Also you can oil/grease the pivot points on the pedal itself inside the car..

Good idea to do them all~

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Jim Porter
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Report this Post07-30-2005 02:37 AM Click Here to See the Profile for Jim PorterSend a Private Message to Jim PorterDirect Link to This Post
You didn't mention which engine. If this is the 2.8L V6 I have found the throttle body stop screw backed out too far will allow the throttle body plate to close too far and stick. Adjust the screw in just slightly until the plate no longer sticks.

Jim

[This message has been edited by Jim Porter (edited 07-30-2005).]

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Blue Shift
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Report this Post07-30-2005 04:16 AM Click Here to See the Profile for Blue ShiftSend a Private Message to Blue ShiftDirect Link to This Post
Crawl under your dash with a 10mm socket wrench and take the two screws out of the block that the gas pedal pivots on. Clean out the nasty old grease real good, and put a glob of fresh moly/graphite grease in there. Reassemble and tighten snug. I once wondered why my gas pedal was so sticky - it turns out that the screws had almost backed themselves all the way out! Glad I caught that before my gas pedal fell off...

Other things to try include spraying some WD40 into your throttle cable and working it into the cable, and checking the spring on the TBI or throttle body.

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cire36
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Report this Post07-30-2005 12:42 PM Click Here to See the Profile for cire36Send a Private Message to cire36Direct Link to This Post
I had this same problem with my 84 4 cyl. It ended up being the throttle cable, throttle end.

The hard tube end where the cable comes out. Mine had broken strands and the were catching on the end of the tubing.

If you end up having to replace the cable make sure you pick a bright, sunshinny day when everyting is right with the world because it is a pain in te a$$ job.

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LZeitgeist
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Report this Post07-30-2005 12:45 PM Click Here to See the Profile for LZeitgeistSend a Private Message to LZeitgeistDirect Link to This Post
I get gunk that builds up in my throttle body (on my V6) that makes the throttle plate want to stick closed and make the gas pedal feel like it's sticking when it's at idle. Taking the intake hose off, the IAC valve out and cleaning out the throttle body gets rid of the sticky feeling in my case... don't know if it will help your situation.

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theogre
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Report this Post07-30-2005 02:58 PM Click Here to See the Profile for theogreClick Here to visit theogre's HomePageSend a Private Message to theogreDirect Link to This Post
Careful with the pedal pivot block....

If you have a plastic block in there, don't oil/grease it. That can actually make binding worse. It may seem better at first but the oil/grease messes with the plastic and it can bind worse later. Just clean it all and maybe try some dry teflon powder or something like that what won't attack the plastic. In general I've realy seen a pedal pivot jam. They usually wear and get sloppy. In Fiero's case that slop adds to the problem of not getting to WOT.

edit... even if you have a plastic friendly grease... don't use it here. Any grease/oil will collect dirt and grind it into the plastic pivot block.

Also reach over the carpet and feel carefully around the cable end of it to make sure nothing is blocking it. You never know what may have broken/fallen in there and could be jamming things.

Most of the time this sort of thing is traced to the cable or the throttle assembly.

Cable damage most often is a constant sort of bind when I've run into it but that doesn't mean a spot bind isnt possible.

Throttles are easy to get spot binding. Binding closed due to the stop screw set wrong is common as noted above. You can also get worn shaft holes that let the plate move in ways it wasn't ment to. A worn shaft means replacing the throttle body, TBI unit or carb for most people. Technically you could bore out the holes and insert a bushing but few people have teh tools to do that correctly. Either hole a tiny bit off and you can get even worse binding than you started with.

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[This message has been edited by theogre (edited 07-30-2005).]

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Hairy_Fiero
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Report this Post07-30-2005 05:47 PM Click Here to See the Profile for Hairy_FieroSend a Private Message to Hairy_FieroDirect Link to This Post
Thats odd, they came greased from the factory.
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theogre
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Report this Post07-30-2005 07:17 PM Click Here to See the Profile for theogreClick Here to visit theogre's HomePageSend a Private Message to theogreDirect Link to This Post
Some may have. Others didn't. Mine wasn't. Most I've seen over the years are dry. Not just in fiero.

Either way... If you want to grease them make sure you use something that won't damage plastics. Brake grease is probably a good one.

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I wear pants
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Report this Post07-30-2005 08:05 PM Click Here to See the Profile for I wear pantsSend a Private Message to I wear pantsDirect Link to This Post
Thanks for all of the responses. I will try to get this fixed this weekend. Oh and the car is a V-6.

By the way I gave everyone that responded some positive feedback to show my appreciation.

[This message has been edited by I wear pants (edited 07-30-2005).]

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ChezFiero
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Report this Post08-01-2005 09:07 PM Click Here to See the Profile for ChezFieroSend a Private Message to ChezFieroDirect Link to This Post
Greetings,
I had this same thing happen as I am sure many have.
My fix was to disconnect the throttle cable at both ends...get your shop vac and put the throttle body end into the vacuum use a little gaffers tape + turn vacuum on..... with a little plastic on the floor begin to spray WD-40 into the end of the cable as you wiggle the multi strand in + out you will see the lubricant get sucked right in. I finished this procedure off with 10w-50 from my oil can then a little white grease after I had it all back in.
It worked very well instsnt differance in the feel of both shifting and throttle.
You can also do this with your shifter cables as well, in fact the round standoff at the tranny end of the cable(s) fit snugly into the hose of my shop-vac.
The bad news is that in my personnel experience once you get the cable is"sticking" feel it is only a matter of time till you need to replace the cable as the outer multi strands of the actual cable inside fatigue then fail. Once you get 2 or more "frays" your cable begins to malfunction.

ChezFiero

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USFiero
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Report this Post09-25-2005 09:27 PM Click Here to See the Profile for USFieroSend a Private Message to USFieroDirect Link to This Post
 
quote
Originally posted by Hairy_Fiero:
Thats odd, they came greased from the factory.

Same here. I just left mine alone.
 
quote
Originally posted by ChezFiero:
My fix was to disconnect the throttle cable at both ends...get your shop vac and put the throttle body end into the vacuum use a little gaffers tape + turn vacuum on..... with a little plastic on the floor begin to spray WD-40 into the end of the cable as you wiggle the multi strand in + out you will see the lubricant get sucked right in. I finished this procedure off with 10w-50 from my oil can then a little white grease after I had it all back in.
It worked very well instsnt differance in the feel of both shifting and throttle.
ChezFiero

wow, that's brilliant. I wonder how long that will hold up?
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I wear pants
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Report this Post09-26-2005 10:16 PM Click Here to See the Profile for I wear pantsSend a Private Message to I wear pantsDirect Link to This Post
Ok, I finally got around to messing with this tonight. I cleaned out the throttle body and I think I got the problem, but now something else is messed up. The tube that comes from the air intake and hooks to the back of the valve cover seems to have come unhooked and doesnt want to go back in. I started it up and the engine light came on, and it idles at like 1800rpm now. Also when I give it a little gas the rpms drop instead of going up unless I apply the throttle really slowly and gently. Any suggestions???
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3800superfast
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Report this Post09-27-2005 07:41 AM Click Here to See the Profile for 3800superfastSend a Private Message to 3800superfastDirect Link to This Post
Hi, Thats your engine breather tube, just put some lubricant on the outside of the tube, and it should wiggle in for you, its in a weird angle , so take your time, also be carefull back there , your going to be pretty close to all your cables , fuel, cruise, ect , ect, you don`t want to pinch them .. Good Luck..
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I wear pants
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Report this Post09-27-2005 08:37 PM Click Here to See the Profile for I wear pantsSend a Private Message to I wear pantsDirect Link to This Post
Wow, do I feel stupid. I went out there tonight to try to fix it and I looked it over to see if I saw anything wrong, and the first thing I noticed was that the two electrical conectors on the side of the throttle body were still unhooked. I unhooked them last night when I was cleaning the throttle body. Oh and I got the breather tube on too it just took a little patience and some oil. Anyway I started it up and all was well, it idled fine and didnt hesitate when I gave it gas, and the check engine light went back off.
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