throttle

[Turbo Thom]

Question:
I replaced the throttle rod linkage because it broke. I also replaced the return spring. Now when I apply lite throttle and I may hit a little bump the truck starts hopping as though the throttle is being pulled in and out. I have to use the clutch or push the petal to the floor for it to stop.
Is the spring to lite or is there another adjustment? I looked in the the manual and set the 5" adj. for the 5 speed but that was all I saw.
Thanks
Preston

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96 3500, Black SLT, 5 speed, turbo diesel, , with US Gear overdrive, Rhino liner, Reese 15,000 lb. fifth wheel hitch, US Gear de-celarator exhaust brake, muffler elimination kit, Amsoil lub. , Mag-hytec rear cover, dual-remote by-pass filters, and Roadmaster Active system, AutoMeter Pyro & boost, Primeloc

 

[klenger]

My new truck is the same way. I assumed it was because of the higher torque of the diesel, and that I would have to get used to it. When I am approaching speed bumps or something like that, I put the clutch in before it get to it. Do we have a problem or is this normal?

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Ken Lenger
2001. 5 2500 QC 4X4 SWB SLT, ETC/DDX 5 Speed, 3. 54 (no LSD), camper group, trailer folding mirrors, RBR CD/Radio, LT265/75R16E AT OWL tires, trailer tow group, Patroit Blue / Agate, Westin CPS Step Bars, Jordan Utlima Brake Controller, Weather_Guard 664 tool box/
Replaces 98 Jeep Grand Cherokee V8 which is for sale.
Trailite 21' Travel Trailer, ~4000 lbs loaded.

 

[T.Fogie]

I wouldn't worry to much. The old Detroits were that way as well. Has to do with the tension on the return spring. My 99 does it too. Won't hurt anything.

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DEBEEST, 99 QC 2500, SLT, 4X4, LWB, 5 Spd, Rhino Liner, Mobil Delvac 1 5W40, Auto Trim Design Runningboards, Les Schwab Wild Country Radial APTs, Pillar mounted ISSPRO Boost Gauge and Pyrometer

 

[JJW_ND]

Preston, There is a TSB on the "bucking truck" related to 12V pumps and trottle linkage. The linkage is changed to reduce the sensitivity. Check Dave Fritzs site out or do a search.

jjw

 

[Great White]

used to find that when the motor mounts were loose. Engine torques to one side and the relationship of the firewall (pedal) to the engine changes.
Rich

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2001. 5 2500 ETH/DEE 4x4,Patriot Blue over Silver,Camper pkg, Trailerpkg,3. 54LSD, Agate Leather,Stainless Smitty Bars,Tow hooks,Amsoil... ... ... Except snowplow!

 

[X-10]

Even my 10 banger does it once in a while. Seems like it is most likely when in 1rst and creeping, either up to speed bump like mentioned above, or off road. Don't have a clue whether the throttle linkages are the same or not. It is kindof a pain in the a**. I just figured it was normal also and just used the clutch more.
Doug

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red 96 x-cab 2500 lbox v-10 5-speed w/4. 10s. ON ORDER - red 01 q-cab 2500 SLT 4x HO 6sp lbox w/3. 55s & most the goodies

 

[Big MAK]

A-lot of people discover this is due to your foot on a sensitive throttle linkage. I. e. your foot bounces slightly, truck bounces, your foot bounces more, let's call it the boing effect. Go over a stretch of road this happens on and try driving with the outside of your right foot resting against the center hump to stabilize it. Another option is to adjust the seat for a better angle. One of the reasons I like driving with cowboy boots on -- perfect for working the pedals.

ps: this is specific to 12V so I'm moving it over there...



[This message has been edited by Mark Kitchell (edited 04-05-2001). ]

 

[bigkavr]

Go to a Farm & Fleet store and get two matching springs with wraped ends (loops on both ends). Just try to match them up with the stock ones as far as length goes. try to
get the next "firmer" spring tension and this might solve most of your problems. It solved 95% of my bucking and the extra little spring tension isn't even
noticable.

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97 2500, extcab, 4x4. BFG 285/85/16 AT, "warmed over" pump, JRE Stage III plate, AFC spring kit, BD gov. spring seats only, 370 injectors, K&N, 4" Edwards Exhaust with Dynomax straight through racing muffler & 5"tip, (Cat got "lost"), EGT, boost, oil & transmission temp. gages, Low Stall torque conv. & BD valve body, silencer ring "exiled", Grover Emergency air horn and a multitude of strobe lights and switches (Vol. firefighter)