i've recently aquired this vehicle with 120k and of course there are going
to be problems on a 12 year old vehicle. if it were perfect, why sell it?
but of all the annoyances, one thing is driving me nuts (this is a manual
trans). accelerating in small increments is almost impossible as there is
so much resistance to pedal pressure. trying to accelerate, let's say, from
700rpm to 1000, will always cause an overshoot to up to 2000 rpm. it's just
hard to press down on the pedal. so i disconnected the cable from the
throttle, lubricated it there, at the pedal side as well as all the pedal
mechanisms. while the cable is disconnected from the throttle there is no
evidence of a 'sticky' problem. from the the throttle end of the cable all
the way to the pedal all seems gliding free.
so i noticed, while the cable's disconnected, that pushing on the throttle
with my thumb is v e r y h a r d. and i had lubricated the the throttle
spindle and bushings to death. it seems to me, that the friggin' spring is
just too damn stiff.
so, here's the question. has anyone else noticed this? is it possible to
remove the throttle spring and replace it with a wimpyer one?
because man, that would make the constant shifting i have to do in dense
urban traffic soooooo sooooo much easier. it's ridiculous as it is now. i
have to hold my breath, gently as possible increase pressure on the pedal,
wait for it to deccelerate from 2k to 1k and let out the clutch in 1st gear,
then quickly do the same up to 2nd. it's awfull.
my 93 has the exact same problem as you have described. i am
if the throttle cable is possibly going bad, i have done all of the
lubrication things that you have done, and have about decided that
throttle cable may be going bad. i will sure be interested in
what you figure out on this issue.
Mine had exactly 120k on it when i bought it.
I can't tell if it's the cable or not. Like I said earlier, i disconnected
the cable from the throttle and it seemed to move perfectly free. Unless
whatever problem that might be in the cable only acts up when there's
tension on it or some such weird thing (which wouldn't really surprise me).
Or, another thought, maybe it's not the spring having too much tension.
Maybe the throttle gizmos themselves are binding somewhere. Life isn't so
simple that merely replacing a cable (let alone just lubricating it) would
solve the problem. It doesn't look like there's any way to mess with the
spring and throttle parts on the vehilce. It seems that the injector has to
be removed and messed with on the bench. And, as I don't have a bench, it
appears that a highly skilled, certified, well-tooled "technician" with a
bench will have the luxury of charging me up the yin yang to accomplish the
mechanical feat of fixing my &%$-ing car.
Anyone out there with a `93 manual trans Rodeo that does NOT have this
the part that the throttle cable hooks to is the throttle body. what
the cable does is open and close a butterfly inside the throttle
body. the further that you push down the accelerator cable, the more
this butterfly opens, and the more air gets into the engine. the
butterfly on all throttlebody type fuel injections systems are
notorious for getting gummed up and dirty, causing them to stick, a
lot of times worse after the car has been parked over night. if you
havent taken a look at, or cleaned yours yet, you probably need to do
that. it is a very simple procedure, requiring only a #2 slot screw
driver and a can of aerosol throttle body cleaner (can be found at
any auto store for about $4.00). just loosen the 2 hose clamps on
the large black rubber duct that runs between the throttle body and
the air cleaner, and move the duct out of the way. look into the
throttle body while you open and close the throttle a few times, and
you will see the butterfly moving. just take the cleaner and spray
the whole inside until it is clean (open and close the butterfly
several times while spraying, and dont get that stuff in you eyes, it
really burns for a few seconds), and then replace the duct and
tighten the clamps. the first time that you start the engine, it
will be a little difficult to start, and will run pretty rough for a
few seconds until it burns up all of that cleaner. hope this helps
now sherlock begins to study the ambiguous evidence forthright. let's see
perhaps the motor mounts have been trifled with by patriotic terrorzits, and
too much left lean is pulling on the throttle calble, and that means that no
matter how many 'gumout' products you submit yourself to in desperation, all
you've accomplished is raising their corporate stock which depends on such
but, perhaps, i may simply need another new car....
throttle butterfly cleaning didnt fix mine, doesnt mean that it wont
yours, in my 26 years as a dealership service manager i've seen it
literally hundreds of sticky accelerator pedals...
right. i'm going to try it first chance i get.
but here's another quirk i've just noticed today. pushing on the pedal
doesn't really seem all that abnormal when the engine isn't running.
there's a very noticable increase of resistance as soon as i start the
right, but it can't just be the vacuum alone causing that much 'stick.' you
can hardly push the pedal. and when you do get it to move, it will
overshoot from 700 to 2000 rpm no matter how much effort used to accelerate
i'll see what happens after i spray it all out.
hey basil, got mine fixed last night, i went and bought some real
throttle body cleaner ($2.49), rather than just using the cheap carb
cleaner ($1.39), and sprayed the butterfly clean (pay close attention
to the top and bottom) and also cleaned the throttle shaft on the
outside of the throttle body. while i had my hands dirty, i un-
hooked the throttle cable on both ends, then pulled as much of the
inner cable as possible into the passenger compartment, and
lubricated it with a heavy grease (i used marine grease), then went
under the hood, and pulled out as much of the inner cable as i could,
and lubricated it with the same grease (you have to pull off that
little rubber boot, you'll see), put it all back together, and no
more sticky pedal (for now at least, i'll see how long it lasts).
thanks for all of your input, it really gave me a "gotta figure this
thing out" kind of attitude...
i've sprayed it all in and out until is's shiny clean but no luck. other
than the spring resistance i've mentioned it moves freely. it must be in
the cable somwehre. i've been lubricating mine at both the pedal and the
throttle side in the same manner you've described and sometimes it does semm
to make a slight improvement, but not for long. but that could be
have you noticed whether or not, when you push the throttle all the why
open, your cable goes into the sheath? or does it bind and bend upward like
mine does? the more i mess with it the more it seems like it does feel a
little hard to push the cable back toward the pedal. who knows, maybe
someone had to pull it all away to do some engine/valve work or something
and the cable got crimped crimped.
i'll just have it replaced and hope that that takes care of it. don't know
what else to try at this point.
but first, as of today, i have to have the starter replaced.
mine does have a slight upward bow between the throttle body and the
sheath, however there is now very little resistence when i push it
back towards the pedal
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