Dmurph2016

2 hours ago, Mark T said:

If it works, leave it alone ( lol )

I contemplated that, lol but my luck it’ll stop working first day I put the truck to work. 

Update, I unplugged the sensor and plugged it back in and it was working, took the truck for a drive and no issues. I ordered a new sensor from the dealer and will install when it gets here. I’m not sure if it was a coincidence or just the sensor being on its way out (no idea how old it is) so I’m glad it was something simple this time!

1 hour ago, Mark T said:

That's what he's talking about. Check on top of the transmission and look for something disturbed from the reverse switch issue. The sensor's plug is likely up there. It's not impossible the speedo sensor is bad as well. On occasion, those plastic ones don't live through being touched ( like as in resetting it's depth ) 

I’ll have to check that out tomorrow morning. I figured they were working in the same area maybe something happened, but the sensor is pretty cheap so can always try replacing it and go from there. Just seems like as soon as I’m ready to get it working it’s one thing after another

1 hour ago, theakerstwo said:

what you need to do is get some one with a reader plug in and go down the road with it and watch and see if you loose the VSS signal.

If there was someone local that could do it I’d drive it there, but driving it derated is no good when you need to do highway speeds to get to a shop and it just can’t. 
I’m going to try adjusting the sensor, if that doesn’t work I’ll replace it since it’s cheap. Then if that doesn’t work I’ll probably end up having to bring it to the shop again, but that’ll be after I try some things 

55 minutes ago, Joey Mack said:

If its not damaged.. back it off.... then ...by hand.... screw it in til it touches,,,, then back it out 1 full turn. 360 degrees... jojo

I am assuming you mean to loosen the jam nut at the bottom, and screw the sensor itself down until it touches, back it out 1 full turn and then tighten the jam nut back down?

I’ll be able to screw the sensor with my hands or will I need a wrench? 

2 hours ago, Mark T said:

The sensor's plug might be close to the reverse switch's plug.  Might be from touching wires there, hard to tell without being able to see it. Did you look at it ?  wiggle the plug ?  unplug it and plug it back in ? 

I was looking at it before the rain storm started, I wiggled it to make sure it was plugged in, when it dries out tomorrow I want to try unplug/plug and see if that does anything 

24 minutes ago, Mark T said:

That's it.  If they were doing anything by the reverse switch ?  I'd look for something like if it's unplugged (maybe someone did it by accident and didn't plug it back in ??)  or pinched or green stuff in the wires.  Seems odd it would just stop working at the same time.

They were putting on a backup bepper, guess the wiring was all sorts of messed up and they must have had to do something right the reverse switch. I checked and it’s plugged in, doesn’t look pinched or any oxidation from the sensor to the connector. I’m still waiting for the owner to call back. Hopefully they offer to take a look at it. I drove it there and the Speedo was working picked it up and it wasn’t. Not saying they are the reason but just the facts. I’m sure they will make it right 

So I looked online and I believe this is the sensor? Anything special I have to do to replace it?

On 6/19/2021 at 9:44 PM, theakerstwo said:

It may not be fueling or in a Derate mode due to no VSS signal.

I started to read up, seems when the Speedo is not working it gets derated. I think that’s what’s going on. 

On 6/19/2021 at 8:44 PM, Joey Mack said:

what was done at the shop? why did you bring this to the shop....?

Shop was fixing the lighting and air leak with the tag axle issues. They slip says they repaired some wiring at the trans for reverse, so maybe they did something with the speed sensor? I have to call them this morning and see

19 hours ago, Onyx610 said:

Does the truck smoke more then usual? Good sign there is a boost leak. I’m not sure if the spedo sensor could have anything to do with it, like fuel delivery? Someone with alot more knowledge then me will be able to help you with that issue.  What work did you have done to the truck?

No more smoke than usual. It just seems like the power isn’t there it’s strange. I had the shop fix some things I had wrong, some lights. They did have to fix some wiring for the reverse on the trans, maybe they hit the speed sensor or something, I’m going to call them today and see, when I dropped the truck off it was fine, and the Speedo worked so I’m thinking maybe it was something happened when working on it

2003 cl 713

Picked the truck up from the shop….

The Speedometer just decided that it wanted to stop working, I’m assuming that’s a wire?hopefully something simple. 
the next issue is truck feels like it’s not building boost. Can have the pedal all the way to the floor and the truck just don’t pull. 
 

Just picked the truck up, they fixed most of the issues, but now I have some new ones. 

The Speedometer just decided that it wanted yo stop working, I’m assuming that’s a wire, hopefully something simple. 
the next issue is truck feels like it’s not building boost. Can have the pedal all the way to the floor and the truck just don’t pull. 
 

im still having trouble with my shifting, better but having trouble downshifting when you come up to a light and it turns green that’s where it seems I’m having the most trouble 

Went out for an hour today. Can upshift fine, can’t downshift no matter what I try, only gear I can get from 6to 5th and even then that’s iffy sometimes. I cannot figure out what I am doing wrong

22 minutes ago, Mark T said:

 

Yes I know you have rev the engine up to downshift, the 8ll is a bit different than the straight 6 speeds I’m used to, i think it’s just finding the sweet spot without over reving is what I need to work on and then it’ll be eaiser. Just need to keep practicing 

1 hour ago, Mark T said:

There should be a sticker (maybe on the sun visor ??) that will have a brief description of range shifting from hi to lo.   Safe bet that from one speed to the other will be pretty close to a 450 RPM difference (up or down)  so a downshift from say 6th to 5th , if the engine was at 1400 RPMs  you'd need to take it up to @ 1800 or 1850 RPMs   (on a relatively flat ground) and to up shift it would go from 1800 to 1400 .   Should get you a little closer trying that than grinding 

I didn’t see a sticker, the previous owner told me it liked to be shifted high and that shuck with me until I took it out and tried it myself. 
My issue with the downshifting was once I got it out of a gear to shift to a lower one I couldn’t get it into any gear, I figure there must be a trick I just don’t know yet! I’ll have to give that a try 

So finally got to take my 03 cl713 dump truck out on the road yesterday for the first time. The 8ll is a bit different to get used to, I do have some questions that hopefully can help me. 
 

I have no problem upshifting with or without the clutch, the issue is downshifting, I cannot get it to go back into a gear, any gear, just a whole lot of grinding. The truck liked to be shifted high, 16-1800 rpm, when downshifting do I need to shift in that same range? It does go into gear at 1800 or so rpm but the tach only goes to 2200 and I’d prefer not to blow the engine.

the splitter for low to high range. How exactly does it work if I want  to downshift from say 5th to 4th, if I hit the splitter is it going to throw the trans into 1st gear? Or will it not do anything until I take it out of the gear it’s in (5th) if that makes any sense?

2 minutes ago, MackTech said:

You said it only drops air when the lift axle is in the up position right? If so it very likely will be on the lift bag portion of the lift axle setup.

I haven’t tried keeping the axle down and seeing if the pressure drops still, But yes, keeping it in the up position, come back out 2 hours later the axle is down and there is less 70-60 psi on the gauge. So there’s a big enough leak that when the pressure gets too low the axles just going to drop. I guess I’ll have to check the bags/ hoses out next 

I need to find a new way to attach photos to the posts, since I’m out of room and I’m not really sure how to delete pictures and whatnot. I guess I gotta get out there and check some of the likes under the bed and see what’s leaking and go from there 

5 minutes ago, Joey Mack said:

there arent any props or pins on the bed for you to use? and yes wood blocks have always worked well, 

Didn’t see any, I’ll have to get some wood under there and do some looking around 

2 minutes ago, Mark T said:

Yes   the truck was made with the tanks that look to be aluminum. Then someone added the two.  Are you sure one of those two doesn't have a tiny hole rotted through ?

Not sure, very well could be. I just was cautious looking around with the bed up. I’ll get something to prop it and then check the tanks. Chances are they probably have pinholes rotted in them! 

6 minutes ago, Mark T said:

It looks like someone added air tanks  parallel to the frame.  Those most likely supply all lift axle related air

So those 2 tanks would be working along with one of the other systems, correct? I’m trying my best to understand how it all works.

I do have some more pictures but it seems like I exceeded the data limit so not sure how I can upload them.

8 minutes ago, Joey Mack said:

Ta-Dah!!!! 

What can I do to make sure the bed doesn’t come crashing down? I’m sorta afraid to be crawling around under it with it up. Is there a safe procedure or anything I’d you want to leave it up and look at the frame etc?

I’m not sure why I can only upload 1 or 2 pictures at a time. But here’s a photo of under the frame. I appreciate all the help guys, I’m trying to track this down on my own but if I can’t I’ll end up having to find a shop to bring it to.