Plowing With Tow/haul On/off;Will it work?;My truck is acting funny;Problems with new truck;Q-jet carb. adjustment
Plowing With Tow/haul On/off

My fellow Chevy brothers/sisters (or anyone that has the TOW/HAUL feature)...was curious to know if you ever use the TOW/HAUL button to push snow? In theory it makes since, but I never tried it.
I have a Ford; I plow without the tow/haul mode activated. ;)
Plow in low range and it doesnt really matter.
J
Depends on how fast you're pushing snow. Tow/haul just raises the shift points at any given throttle angle. If you're pushing snow at light throttle input and high enough speed to upshift the auto then tow/haul would proabbyl help increase the lifespan of your tranny...I'm inclined to think though that the load the extra mass of the snow puts in front of the truck would keep your right foot fairly deep into the throttle and you are proabbyl not upshifting too soon.
Nothing wrong with it, but I'm not sure there is any benefit either.
The Benefit would be in the life of your tranny. It stands to reason if they want you to use it for pulling a load, don't you think it's a good Idea for PUSHING a load ! My Son and I talked about this very subject a week or so ago and we decided to use the tow feature
The Benefit would be in the life of your tranny. It stands to reason if they want you to use it for pulling a load, don't you think it's a good Idea for PUSHING a load ! My Son and I talked about this very subject a week or so ago and we decided to use the tow feature
Makes sense to me. If it cuts down on the number of shifts, it must surely be better for the tranny. Or am I wrong?
Chris
I use it sometimes while plowing. But I defintely use in between properties while driving. I have plow hanging off the front and noramlly a skid of salt in the back. That is where I think it is beneficial.
Use the tow/haul when your actually pushin' snow.It will help the tranny. Moving down the road even with the plow and maybe a spreader in the bed it's not really necessary to use it unless your very heavy and traveling in hilly terrain. It's a good idea to use it when you pushin' snow in a parking lot because the T/H not only raises the shift point's up in the rpm range but much more importantly it also raises the line pressure of the trans.More pressure will allow it to keep the clutch's clamped better so they wont be as likely to slip under a hard load. If it will add life to your tranny why wouldn't you use it?
I dont use it
I never use it. I just watch the trans. temp gauge.:waving:
You guys who don't use it might want to reconsider. Tow/Haul is key. I have it on 100% of the time during any given storm.
in my 06 i have drive and manual so i just put in manual and shift it to whatever gear i want mostly 2nd.
I have a Ford; I plow without the tow/haul mode activated. ;) Our owners manual said to plow with the tow/haul activated. (06F250SD) I know you really dont get going that fast but ours seems to have more power when it stays in the lower gear.:eek:
The Benefit would be in the life of your tranny. Depends on the situation I guess. I only do my own driveway so I never get out of first gear anyway, so tow/haul would have zero benefit to me. If you're in a situation where you are pushing snow and you get going fast enough to upshift and then lug the motor then tow/haul is clearly the winning choice and will most definitely help increase the longevity of your powertrain.
It stands to reason if they want you to use it for pulling a load, don't you think it's a good Idea for PUSHING a load ! From my perspective there is a huge difference between pulling a heavy load on a trailer or in the bed and pushing snow, and that difference is in the speed at which you do it. I can pull a trailer up a ling hill at 40-50mph, tow/haul should defintinely be used to help ease up on the pressure the tranny has to take by keeping it in 3rd gear for a longer time, but I certainly don't push snow at 40mph...again though, I'm just a schmoe doing his own driveway in a 3/4 pickup.
T/H not only raises the shift point's up in the rpm range but much more importantly it also raises the line pressure of the trans.More pressure will allow it to keep the clutch's clamped better so they wont be as likely to slip under a hard load Convincing argument right there. I was unaware it also increased the pressure in the tranny, thought it just remapped the computer's shift points to hold lower gears longer. Learn somthing new every day.
Our trucks are always in T\H, I even ride around town in my 350 with it. I like the response much better.
We also almost exclusively plow in 1st gear, but I would still recommend using T\H if you're not using 1st gear for the above reasons.
Everyone know the trans shifts different in tow/haul. But what it also does is raise the line pressures in the transmission. Basically keeping the trans cooler. I keep mine in tow/haul but only plow roads. By dragging out the shift more with the tow/haul the truck doesnt constantly shift as I go down the road.
Everyone know the trans shifts different in tow/haul. But what it also does is raise the line pressures in the transmission. Basically keeping the trans cooler. I keep mine in tow/haul but only plow roads. By dragging out the shift more with the tow/haul the truck doesnt constantly shift as I go down the road. Exactly! Many do not realize it, but there are several benefits to using T/H mode when plowing. It is an absolute must for me.
My truck goes from Reverse to First, Every-Time, even when i'm just driving around, then I'll put it up to 3rd. I've just always used first for plowing because my buddy that has been doin this for 26 years said that it will save your tranny all those extra shifts into 2nd when you let off the gas and then into 1st once you slow down, then into reverse (2 unnessary shifts every push). Just wondering if it will do anything by having the Tow Haul on and have it in 1st or will it not make a differance?
You should always use it. Especially with a disel, v-plow combo. If I have my plow on I have T/H on.
Will it work?

My 94 2500 has 6in lift on it. Will I be able to put a plow on it?
:D Sure you can. Drop the plow frame as low as possible, and get a long chain for the blade
my dodge ram has 5 inches on it with 315 tires and it seems to work good for me. just the a frame is a little high not much but its noticable.
So a mount for the truck will bolt up with little trouble?
My truck is acting funny

Well here the problem my 99' w/5.3 will start the shut off like it ran out of fuel (but I can here the fuel pump running till it qiuts) this is an intermittent problem.
It seems like it looses fuel pressur, it runs for only a few seconds then quits, this can happen serveral times till it stays running., I'm affraid that one of these times it will leave me stranded. I was wondering if it could be a dirty element on the map sensor?
Somebody has to know.
I had a similar problem with another brand of car. Fuel press regulator had failed. everyone assumed there was fuel becouse the pump was running. My buddy put a fuel press guage on and guess what? press would rise for start than drop like a rock and the engine would quit. $35 later I was back on the road.
Yeah that sounds like what mine is doing, just thought somebody would have encountered this at one time or another.
regulators on a GM are becoming a maint. item. You might as well replace it every 30k at the failure rate they have.
Well here the problem my 99' w/5.3 will start the shut off like it ran out of fuel (but I can here the fuel pump running till it qiuts) this is an intermittent problem.
It seems like it looses fuel pressur, it runs for only a few seconds then quits, this can happen serveral times till it stays running., I'm affraid that one of these times it will leave me stranded. I was wondering if it could be a dirty element on the map sensor?
Most common causes are fuel system problem, fuel pump, fuel filter, fuel injectors, fuel pressure regulators. Just cause you here the fuel pump doesn't mean its got fuel pressure. Check fuel pressure, On these systems 5 psi under spec can cause starting troubles and driveability issues.
Is the MIL (check engine, service engine soon) on? Any trouble when you get it running?
Derek
Sounds to me like you are going to have to buy a very expensive part. about $30,000 actually, they'll have it at your local Ford Dealer. Part number is F-350.
First there is no mil light on and second I had worked @ a Ford dealership for fifteen years, and have no intenions on buying a Ford. I remember that we used to have to clean the sensor on Ford map sensors, anyway that was a Ford. Just wondered if GM might have had that problem?
Problems with new truck

We got some snow last night so I went for a drive and decided to try out the 4x4, It felt like it was slipping and the front end of the truck was bouncing around. My mechanic said it was because of the tires, 3 are the stock LT245/75-16 and the front passenger side is 235/85-16. He also says that was why my ABS controler kept kicking in. Anyone have any opinions?
Only one - get another LT245/75-16 -- now.
Certainly a good place to start. The ABS sensors work on wheel motion relative to the others and cen get messed up when you have different size tires on. Not if you change your tires size, just if you have mismatched tires.
Go get another tire right away.
check the transfer case make sure the fluid is good and the tire like mick said
I already ordered 2, there going on the truck tomorrow, just thought you guys might have some other opinions.
i dont think that would make that much of a difference seeing that a 245/75/16 is very close to a 235/80/16
235 divided by 80 is 2.9375 which is the height of the sidewall times 2 plus the size of the rim
so 2.9375 times 2 = 5.875 + 16 = 21.875 hieght of tire
now for now for 245/75/16
245/80 = 3.26 times 2 = 6.52 + 16 =22.52
a difference of 5/8 of an inch a tire with low air pressure has more difference than that
and even if it did cause a problem it would more than likely be with the differentials not the transfer case
just my 2 cents
It's not the tire size, it's the type of tire. 245's are just fine in the snow, but not the crappy stock Firestones, and not a highway tire. What kind of tires are on there?
The 235 is one inch taller, which relates to 3.14 more inches of travel compared to the other side. Nothing else is wrong, change your tire before you brake something.
IDENTICAL tire sizes are a must on 4x4's
if your abs is still doing weird stuff it is probably rust and junk buildup between the sensor and the exciter ring, pull the sensor out if you can determine which one it is with a scan tool and clean all around it, but be very careful when pulling the sensor that you don't break it.
But put a tire on that truck asap you have to run the same size tires on both axles when you have a 4x4
Jeff
IDENTICAL tire sizes are a must on 4x4's
Quite correct, you can't run different size tires on a 4x4, expecially if you a LSD or a locker.
Are you guys reading his post? First off I 100% agree the tires should be the same size.
But his complaint is not how his breaks function, it's was when he put it in four wheel drive.I would think if the truck is on dry pavement and it hops up and down, turning tight that's normal. I bet you that it would it would be even worse with odd size tires.
Just a warning any old 4x4 with different tires and has been run that way is bound to have more wear in that differential and most likely some other maintenance issues.
Thanks guys, you have been a hell of alot of help, i put new tires on today. the abs controler seems to be ok, i dont have a clue where the sensor is so unless it is really simple to find im gonna leave it alone. i didnt try the 4x4 yet but i will and let you guys know. Thanks for all the help.
Hope it works out for you as I am willing to bet that it is just the tire.Dont forget that 1 tire no matter how much different in size will affect abs and turning.ABS sensors are independent of on another tied to a central computer.With tire sizes having different diameters they are going to rotate at different at different speeds thelling the computer different things.
Are you guys reading his post? First off I 100% agree the tires should be the same size.
But his complaint is not how his breaks function, it's was when he put it in four wheel drive.I would think if the truck is on dry pavement and it hops up and down, turning tight that's normal. I bet you that it would it would be even worse with odd size tires. Yes, we did read his original post.
He also says that was why my ABS controler kept kicking in. He was having brake problems too.
He also says that was why my ABS controler kept kicking in. Anyone have any opinions? I know and it's happened to two of our trucks now, but a speed sensor in the front driver side hub, have a habbit fo going. The way you know it's either a bad wire, or the sensor has come lose a bit and rubbing on some metal in there and needs to be replaced it when you are near a crawl and on the brakes you'll feel the abs kick in for that last second or two of braking.
quote from Bruce
know and it's happened to two of our trucks now, but a speed sensor in the front driver side hub, have a habbit fo going. The way you know it's either a bad wire, or the sensor has come lose a bit and rubbing on some metal in there and needs to be replaced it when you are near a crawl and on the brakes you'll feel the abs kick in for that last second or two of braking
You can usually fix that by cleaning the sensor and all the metal and crap around it, even brake dust if you run your brakes down to metal on metal will accumulate in behind the sensor and throw things off
by the way glad to hear you got everything sorted out just by putting a pair of tires on the truck
where do i find these sensors so i can clean them up, because im willing to bet that the sensors are filled with crud. and what do i use to clean them thanks
Q-jet carb. adjustment

Ive got a85 with a 350 and Qjet that is running rich. what do i need to do to lean this out,just a bit. Thanx
The first problem is to figure out why it's running rich. Is this carb original and correct for this application? If so, there's something else wrong. Has it been rebuilt recently? You could have dirt in the needle and seat or a leaking seat. Your float could have gone bad, since the newer additives in gasoline attach the plastic float used in the Qjet. A heavy float will definitely cause a rich condition. Is the choke opening up fully? The choke coil could be bad.
The first problem is to figure out why it's running rich. Is this carb original and correct for this application? If so, there's something else wrong. Has it been rebuilt recently? You could have dirt in the needle and seat or a leaking seat. Your float could have gone bad, since the newer additives in gasoline attach the plastic float used in the Qjet. A heavy float will definitely cause a rich condition. Is the choke opening up fully? The choke coil could be bad. just a stupit question check the exaust flap in the passengers side could be closed. tare the carb apart they are easy dont be scared . take a good look at the plugs they will tell a good story.
Check your choke assembly....probably needs lubricating.



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