I recently posted something about the front end of my truck hopping when the turbo spools. Feels like the front end is jumping. Someone mentioned that it might be a torque converter issue, but I got around to checking the fluid and it's a nice red color and smells fresh.

I took the truck for a spin and duplicated the problem. I watched the tach and didn't see any fluctuation, whatsoever, during the jumping, so I'm inclined to think that's not the problem. Any comment?

I'm thinking of replacing the front shocks, but I can't see how that could be the issue. I checked to see if the engine mounts might be causing the problem, but couldn't see much engine movement when she was revved up ... I'm at a loss! -

piperca's Sig:

1999 2500 SLT, QC, LB, 2WD, Auto, 4:10's, VA V5, RV275, S&B Intake, AFS Big Dog Fuel System, Vulcan Draw Straw, Isspro Fuel Pressure, Westach Boost/EGT Combo, CSS front springs 2" over-stock, KYB MonoMax, DTT Noise Filter, "Dreaded 53 Block", New VP44 @ 135k.

do all 4 shocks...........the OEM ones are junk -

Whitmore's Sig:

* 01 Cummins/Dodge/HO/6 speed*275 injectors*PDR 35 turbo w/14cm housing & high pressure boots*HTT 3 piece ported exhaust manifold*Progaurd 7 with prefilter*Edge Comp*Fass II*Southbend con OFE*Jacobs brake*5"Stacks Big ens*E/F shift knob w/2low & brake switch*10 Gages*KW Ram air System cab controlled*Rickson 19.5x265's*True speed calibrator*Rancho 9000's*DT track bar*DSS steering stabilizer*KW Side impact rails*KW Traction Bars*Toolbox/fueltank 60 gal Combo*Mag High Tech Diff Cover*Ranchand bumpers*Grover air horns*Rear Wheel Cylinder Upgrade DYNO 375 HP 941 TRQ

|^^^^^^^^^^^^^|||__
|---CUMMINS----- |||| '|";\,___.
|_..._...______===|=||_|__|...,]
"(@)'(@)"""" |(@ )(@ ) ````(@)

The story is told that one evening an old indian chief told his grandson about a battle that goes on inside people. He said "My son, the battle is between two wolves. One is Evil, it is anger,envy,sorrow,regret,greed,arrogance,self pity,guilt,resentment,inferiority,lies,false pride,superiority and ego.

The other wolf is good, It is joy,peace, love, hope,serinity, humility,kindness,empathy,generosity,truth,compass ion and faith."

The grandson thought about this for a minute and then asked,"Grandpa which wolf wins?" The old chief simply replied, "The one you feed."

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I have KYB MonoMax shocks all round. I changed the front shocks to a shock with slightly different travel to match the 2" over stock springs I installed. KYB helped me out with the specs, but I'm starting to wonder if the stock specs might suffice. KYB couldn't get a shock that was perfect for the slight difference in the spring length, but, according to them, the shock they recommended is better than staying with stock. This is the reason I'm thinking about changing them out. The truck feels great and the shocks seem to be fine ... other than the bouncing feeling I'm getting and I really don't know that it is the shocks. -

I think your on the right track with something slipping. -

Mopar1973Man's Sig:

2002 Dodge Cummins - Michael Nelson

Okay, threw a P0720, which is the tranny speed sensor; could this be causing the issue, if it is tranny related? -

Well now you'll start looking over the tranny and all sensors and wiring for sure... -

Oh great, here we go with "I'm Gettin A Ford Stuff Again". -

Uncle Bubba's Sig:

99 Quad Cab, 4wd, Drag Comp W/Pump Wire & Boost Elbow installed, K&N Air Canon, MBRP exhaust, Belt Drive Lift Pump and bottom Bulkhead feed from the tank, Isspro EV Pyrometer, Boost Gauge, Fuel Pressure Gauge, DT Pro Fab Trac Bar, South Bend 13-1.25 Con O Clutch, Ranch Hand Bumper, Borgeson Steering Shaft, Black Silicone Boots, 2" Lift Soft Ride Front Coils, Solenoid High Idle Kit, Bilstein 5100 HD Shocks, Rickson 19.5 Wheels w/Hancoock Rubber, HD Maxx Link Sway Bar Links, Superlift dual front stabilizer, EGR Brakes Front and Back, RV275 Injector's, Blue Chip VP44, Prodigy brake controller, B&W Gooseneck hitch and more I can't remember right now. Not to mention more to come I'm sure.
374.2/846.7 at 30psi

my torque conveter made the truck kinda studder when it was bad. the rpms didnt move. i put it in and it felt great. and the fluid was still red and didnt smell burnt. -

biged681985's Sig:

1999 dodge 2500 with a rebuilt rv motor in it
bombs: airdog 150, ats 3 piece exhaust manifold, 4 inch expandit exhaust with 6 inch tip, s&b intake, spearco intercooler, georends torque converter, and pillar gauges (pyro, boost, fuel pressure). and the latest upgrade, 150 injectors.

Okay, replaced the sensor ($21.95 from the dealer) and the truck turned into an F250 ... gotcha, Dennis!

Just a tip for anyone who's going to tackle the job. It takes all of 20 seconds (if you're slow like me) to change the sensor, but, if you're a dumb ass like me, you'll spend another 20 minutes cleaning up the pint of tranny fluid off your driveway, once your done! So, get the new one ready to go in, before you remove the old ... might want to throw an oil drip pan under there too!

Hopefully, this will solve the issue ... I'll keep you all posted! -

Ya did it the hard way I guess but I told ya you needed to change the fluid. -

Your quite the smart arse, Dennis, that's what keeps me coming back!

Well, the tranny is shifting very nicely ... looks like that fixed it! However, got a new "noise."

A few seconds after I start the truck, I get a noise from behind the dash on the passengers side. It sounds like a dashboard cigarette lighter ejecting when it's ready, but much louder ... anyone know what it might be? -

the flapper door on the ac/heater box closing once the vacuum builds up.... my 96 makes a noise similar to that..... -

Benjamin's Sig:

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Thanks, I think you're right, cause there's a similar, but quieter, noise when I operate the A/C ... funny that it just started doing it! Oh well, guess I'll have to live with it until I get that FORD F250, eh, Dennis? -

i got both a Dodge and an F-250.... you ain't missin' nothin..... -

I know ... just a running joke that Dennis and I have ... sorta like the 53 block and Dr Evil ... did I say that out loud? -