Rsc1717 Posted January 10, 2023 Share Posted January 10, 2023 Have a 2014 cxu613 they ran computer and it’s camshaft position sensor being erratic . How do I go about changing this do you need that special tool or can it be done with out don’t have the tool . Quote Link to comment Share on other sites More sharing options...
Mackpro Posted January 10, 2023 Share Posted January 10, 2023 There is a depth measuring tool to tell how many if any shims are needed to install a new sensor. Really the only time you need it is if you have had the upper timing gear cover off or replaced the cover. Honestly, it’s usually the harness or harness end. I’ve only replaced 1 or two of the sensors ever. Pull the sensor and check for damaged end. Using a ohm meter you should have 775-945 across the pins on sensor. 1 1 Quote Link to comment Share on other sites More sharing options...
Joey Mack Posted January 10, 2023 Share Posted January 10, 2023 You will need to remove the dog house to get to it.. Have you ever pulled that steel panel out? Just curious,, jojo Quote Link to comment Share on other sites More sharing options...
Rsc1717 Posted January 11, 2023 Author Share Posted January 11, 2023 5 hours ago, Joey Mack said: You will need to remove the dog house to get to it.. Have you ever pulled that steel panel out? Just curious,, jojo Yeah I have shouldn’t be to bad I’ll get to it Thanks . 1 Quote Link to comment Share on other sites More sharing options...
Rsc1717 Posted January 11, 2023 Author Share Posted January 11, 2023 6 hours ago, Mackpro said: There is a depth measuring tool to tell how many if any shims are needed to install a new sensor. Really the only time you need it is if you have had the upper timing gear cover off or replaced the cover. Honestly, it’s usually the harness or harness end. I’ve only replaced 1 or two of the sensors ever. Pull the sensor and check for damaged end. Using a ohm meter you should have 775-945 across the pins on sensor. Thanks I’ll check that harness tomorrow that should be the issue Thanks mack pro Quote Link to comment Share on other sites More sharing options...
Popular Post Mackpro Posted January 11, 2023 Popular Post Share Posted January 11, 2023 To gain access to the sensor you can turn the steering wheel all the way to the left , remove the black plastic fender/splash shield from the cab and step bracket and get down between the tire and frame and get to the sensor. Some trucks this works on and some not . Plus it helps if you got skinny long arms. To check the harness at the back of the engine you gotta go in from the inside and pull the doghouse cover off as Joey said. Also , is this a MP7? If so there were issues of the harness rubbing on the air compressor head and causing injector codes and cam sensor and crank sensor codes. All those wires run together towards the back as the injector wires go in the back of the head. On a MP8 the injector wires go in the front of the head so there’s less wiring towards the back of the engine. 1 1 1 Quote Link to comment Share on other sites More sharing options...
Rsc1717 Posted January 21, 2023 Author Share Posted January 21, 2023 Got a change to pull the sensor off while doing the cups and injectors I’m attaching some pics let me know what you think . Quote Link to comment Share on other sites More sharing options...
Joey Mack Posted January 21, 2023 Share Posted January 21, 2023 there shouldnt be any contact with the cam.. But i bet you know that.. can you put it back in to see how much clearence there is? Quote Link to comment Share on other sites More sharing options...
Rsc1717 Posted January 21, 2023 Author Share Posted January 21, 2023 I put the old one back the same way it was just showing pic of it how would I be able to tell if it’s making contact, I put it in don't seem like it’s touching anything do you think that one is bad Joey mack seems like it got hit in the corner . I know you need a tool to install new one don’t have it . Quote Link to comment Share on other sites More sharing options...
Onyx610 Posted January 21, 2023 Share Posted January 21, 2023 Well it got chopped by something and that would be the gear…I’d suggest getting the depth gauge tool and a new sensor. https://ww2-secure.justanswer.com/uploads/HE/HeavyEquipmentTech/2013-12-09_223544_mack_mp8_cam_sensor_replacement_pv776-88968446.pdf 1 Quote Link to comment Share on other sites More sharing options...
Rsc1717 Posted January 21, 2023 Author Share Posted January 21, 2023 Thanks ónix just been having a lot of issues coming up with This truck getting to them one by one . I’ll order the tool and go from there . Thanks making another post about code p0410 that came back today . 1 Quote Link to comment Share on other sites More sharing options...
Onyx610 Posted January 21, 2023 Share Posted January 21, 2023 The biggest issue I have with the MPs is that if you’re gonna try and cut cost and do the work yourself you’re still gonna have to buck up to buy a lot of “speciality” tools. Even ones like this to just change a sensor. If you’re only gonna do the job once it’s pry better to just take it to the mothership, funny how that works….However I love any kind of excuse to buy a new tool! 1 Quote Link to comment Share on other sites More sharing options...
Onyx610 Posted January 21, 2023 Share Posted January 21, 2023 2 minutes ago, Rsc1717 said: Thanks ónix just been having a lot of issues coming up with This truck getting to them one by one . I’ll order the tool and go from there . Thanks making another post about code p0410 that came back today . With these trucks one issue can cause a chain of events. However it’s not just Mack/Volvo engines with problems. To be honest I think they have the least amount of issues. 1 Quote Link to comment Share on other sites More sharing options...
Popular Post Onyx610 Posted January 21, 2023 Popular Post Share Posted January 21, 2023 I’m all for these truck owners getting the tooling and tackling these jobs. Just sucks how expensive the tools and parts are. From what I see/hear anyone that goes to the dealership or some garage that says they can do it…6 times out of 10 the problem persists or is worse then when they get the truck back after an 8k+ bill. Then they end up attempting the job themselves and get much better results. Bottom line get the correct tools, literature, and take your time with these engines and you will be ok. 2 1 Quote Link to comment Share on other sites More sharing options...
Rsc1717 Posted January 21, 2023 Author Share Posted January 21, 2023 Yeah ónix , on this one I’ll probably just leave it to them to take care of it not worth buying tool for just one sensor lol. Yeah and you’re right thats why I usually tackle my own jobs ,one because I like learning and also making sure no corners were cut . But with all the special tooling it makes it a little difficult and also got to have the correct scanning tools on top of it . 1 1 Quote Link to comment Share on other sites More sharing options...
Popular Post fjh Posted January 21, 2023 Popular Post Share Posted January 21, 2023 9 hours ago, Onyx610 said: I’m all for these truck owners getting the tooling and tackling these jobs. Just sucks how expensive the tools and parts are. From what I see/hear anyone that goes to the dealership or some garage that says they can do it…6 times out of 10 the problem persists or is worse then when they get the truck back after an 8k+ bill. Then they end up attempting the job themselves and get much better results. Bottom line get the correct tools, literature, and take your time with these engines and you will be ok. Comes down to experience again in my mind and paying attention to details! You can't bandaid and cut corners too much on these engines it will come back to bite ya! If it says to do it a certain way you should probably do it that way! For the most part ! The Dam Special tools are a necessity not usually an option !You can try it with out but it will likley backfire! Is it just me or do I see a lot of aluminum filings on that sensor!??? You also hold in your hand a cause for a poor starting engine ! hopefully your not doing cups for nothing! Also is it possible that we have us another drive gear going south here? Was the engine making any rattle noise at the rear ???? Not trying to conger up fear or anything just askin! that sensor got hit by something! Much like My V8 project Chicken or the egg!? 3 Quote Link to comment Share on other sites More sharing options...
Rsc1717 Posted January 21, 2023 Author Share Posted January 21, 2023 FJH, the hard starting went away as soon as I did the cups it’s gone starts right up anytime . But that sensor did get hit with something and it does have some shavings so who knows . I will pay attention to rattling at rear . 1 Quote Link to comment Share on other sites More sharing options...
Mackpro Posted January 21, 2023 Share Posted January 21, 2023 (edited) https://volvotrucks.vg-emedia.com/FileImageDisplay.aspx?FileId=6030&DisplayType=attachment The tool number is 88800031 but no ones seem to make it other than Mack/Volvo . However I found on the Volvo side , it list the measurements from the tone wheel tooth to outer edge of the upper timing gear cover. Just line the tone wheel teeth up to the middle of the hole use a depth mic to get a reading and choose the number of shims you need . I don’t remember the Mack bulletins showing the actual measurements, only to use the tool . Edited January 21, 2023 by Mackpro 1 1 Quote Link to comment Share on other sites More sharing options...
Rsc1717 Posted January 21, 2023 Author Share Posted January 21, 2023 Thanks Mack pro , yeah I found the tool online at freedom racing like for 270 I believe , I haven’t purchased . I’ll look into Thanks . 1 Quote Link to comment Share on other sites More sharing options...
Onyx610 Posted January 21, 2023 Share Posted January 21, 2023 Let us know how you make out 1 1 Quote Link to comment Share on other sites More sharing options...
Rsc1717 Posted January 21, 2023 Author Share Posted January 21, 2023 I sure will let you know how everything turns out . thanks 2 Quote Link to comment Share on other sites More sharing options...
Mackpro Posted January 21, 2023 Share Posted January 21, 2023 6 hours ago, Rsc1717 said: Thanks Mack pro , yeah I found the tool online at freedom racing like for 270 I believe , I haven’t purchased . I’ll look into Thanks . The tool would be handy as getting a depth mic up in there would be no fun . 1 Quote Link to comment Share on other sites More sharing options...
Joey Mack Posted January 21, 2023 Share Posted January 21, 2023 Rsc1717 .... I have a few specialty tools from Freedom Racing.. They are realy good quality, for not being Kent-Moore or OTC.. jojo 1 Quote Link to comment Share on other sites More sharing options...
Onyx610 Posted January 21, 2023 Share Posted January 21, 2023 Ferrum and freedom racing are the shit! 1 Quote Link to comment Share on other sites More sharing options...
Joey Mack Posted January 21, 2023 Share Posted January 21, 2023 Check out Monaco tool co. (Uegene Oregon)... Thats where I got my counterbore cutter.. 1 Quote Link to comment Share on other sites More sharing options...
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