Truck is shaking whenever on throttle

Basically what the title says. Whenever I get on the throttle the truck starts to shake. Seems to idle fine. Someone said it might be the fuel filter. There are 2 of them right? Yes or No. I changed the one on top of the motor today but still does the same thing. Any ideas on what it might be?

It's just telling you that it want's more abuse & harder abuse! :D

NOOOO dont need to be doing that. Have to take it easy on the tranny lol.

I put that 2 cycle ashless marine oil in it friday but it started doing it monday??

Mine shakes some times too going 45-55in OD, like some women....when your hard on them they act better! :hehe:

Possibly a bad motor/trans mount. You might want to check all your u-joints too.

How many miles on your torque converter? How is the trams temp?

Cat Rebel's Dream Ride is just telling you that she want's more abuse & harder abuse! :D :D

You say that you just put in 2 cycle ashless marine oil a few days ago, and now it's running rough? Tell me more about this oil?

I had a customer put 85-90 gear oil in his truck instead of 15-40 because he figured that would stop a significant oil leak he had :eek: :badidea:, needless to say, that truck ran a little......weird. :doh: :hehe:

Dave

Unless he put a gallon in his tank, the oil cant be the issue. My wife by accident doubled the dose and the truck still ran great.

Oh so you put this oil in the fuel as an additive?

:doh: I thought he meant he changed his oil and that is what he filled her up with. :poke:

Dave

my truck was doin the same thing and everytime it turned out to be a bad injector

I used it as an additive not the mail oil. I put a little under an ounce per gallon in each tank.

Is there an easy way to check for a bad injector?

Do you know anyone with a scanner? Do a buzz test and a contribution test..

Nah, an oz per gallon won't hurt anything. Go with Matty's idea and run some basic injector and oil system tests on AE or a good scanner because its often very difficult to identify a specific issue. Does it fire up immediately? Does it vibrate, feel like a miss, or both? If its ok at idle but not under load, theres possibility of an hp oil system or fuel issue.

ive had four injectors go now and all i do to figure it out is use an infared thermometer and keep track of the temps on the manifold outside each cylinder and look for the coldest one. ive been right everytime now. if u dont have an infared thermometer use your hand or a a digital cooking thermometer.

ive had four injectors go now and all i do to figure it out is use an infared thermometer and keep track of the temps on the manifold outside each cylinder and look for the coldest one. ive been right everytime now. if u dont have an infared thermometer use your hand or a a digital cooking thermometer.

make sure ur truck is cold before u do this

Would mixing 2 stroke & white power service (anti gel) in the same tank make it run any diffrent? :confused:

Would mixing 2 stroke & white power service (anti gel) in the same tank make it run any diffrent? :confused:

It just counters the effects of the 2 stroke oil. There is no problem running both at the same time.

On edit-- 2 stroke oil is a natural anti gel... Dont waste your manoey on the PS.

It just counters the effects of the 2 stroke oil. There is no problem running both at the same time.

On edit-- 2 stroke oil is a natural anti gel... Dont waste your manoey on the PS.

Alright, I wasn't sure if the 2 stroke would keep it from gelling or not. I had it gel up on me once this winter.....but when I think about it I hadn't been using any 2 stroke for awhile & my filter was due to be changed anyway! :doh: :pointlaugh:

Now that I know this I'll go back to the 2 stroke again, smells better too! :D

I did not know that the 2 stroke oil is an anti-gel

I did not know that the 2 stroke oil is an anti-gel

It makes sense, think about how cold it is when you run a chainsaw or something else 2 stroke in the middle of winter. Now that is gas & not Diesel but still.

it fires up fine and seems to idle like it always has. I think it usually starts to vibrate around 25 mph.

with a bad injector it will often times idle fine. it just becomes noticable when u start drivin

So I drove it around alittle bit tonight and this POS has me wondering now. When I go from a dead stop and get up to speed it will start to vibrate but it will usually start around 25-30 mph. Then at other times it wont do it. Maybe it is or maybe it isnt an engine problem I have no clue any more.

So I drove it around alittle bit tonight and this POS has me wondering now. When I go from a dead stop and get up to speed it will start to vibrate but it will usually start around 25-30 mph. Then at other times it wont do it. Maybe it is or maybe it isnt an engine problem I have no clue any more.

Sure that it isn't the tranny or driveline? Have you been running the TS chip in 140hp alot? Very bad things have been know to happen in that setting.
Leave the truck in stock form & take off on a flat strip of road from a stop normally (easy) & bring it up to speed. Re-start the process but this time push a bit harder on the throttle & see how it reacts & if it still vibrates under hard throttle.

You should also have all of your ball joints, tie rods, U joints & the like checked out real good.

No since the tranny started slippin i usually run the stock setting or maybe the 50 setting. I think I am going to get all the driveline checked soon.

oh and it doesnt do it when being pushed hard btw

Have you figured out what was wrong yet Ryan?? It sure sounds like a U-Joint to me. If the one on the rear driveshaft is bad it will shake the #### out of the truck. I broke a few on my 88 F-150 back in the day spinning on snow and hitting dry pavement will break em haha.

I assume it doesnt do this when you rev the engine in neutral? Just crawl under the damn truck and wiggle everything you see ;) could be the carrier bearing too.

My e-450 was doing that and after replacing the carrier bearing it still did it and it turned out to be the wiring harness under the valve covers had, them replaced and it ran fine. Now its missing real bad and pouring the smoke I think i lost an injector or the wiring harness came loose. The shorting wires is what it may be on yours good luck

My truck did that when the injector was not seated properly. I think its an injector issue

Mine does that when an injector hasnt warmed up enough yet. Ive got at least 2 bad.

One can be woken up by running the block heater. With the block heater enough work to crank it fine but it has a skip till it fully warms up and that last injector goes to firing right. If I dont plug it in it wont crank as at least 2 injectors arent working.

But once they ever go to working from getting the motor warmed up it stays running smooth till it cools overnight. The injector that is out even with the block heater still lets it idle ok, just acts up as you get up in speed. Scared the crap out of me when it did it the first time.