worellana88 Posted May 17, 2023 Share Posted May 17, 2023 My ctp713 been shutting off at idle and while going down the road. Cranks up everytime after key is reset only if hours are showing. I noticed today it kept going backwards everytime it stalled out so I worked 12 hours but only showed I ran it like 5 hours. Sometimes it stalls out 8 times sometimes 1 or twice in a day some days none. But now it’s getting everyday. Any help is appreciated. It did it 2 years ago and stopped and has slowly started back. Nobody knows what it could be. Engine harness replaced and engine brake valve Quote Link to comment https://www.bigmacktrucks.com/topic/72868-07-ctp713-granite-mack/ Share on other sites More sharing options...
Joey Mack Posted May 17, 2023 Share Posted May 17, 2023 Well here I go again. check the ground wire connections. there is a pass-through in the center of the firewall all the grounds are gray wires.. good luck... Jojo Quote Link to comment https://www.bigmacktrucks.com/topic/72868-07-ctp713-granite-mack/#findComment-531547 Share on other sites More sharing options...
worellana88 Posted May 17, 2023 Author Share Posted May 17, 2023 Thanks jojo. Gonna take a look. I’ll respond soon as I check it out. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/72868-07-ctp713-granite-mack/#findComment-531548 Share on other sites More sharing options...
Joey Mack Posted May 17, 2023 Share Posted May 17, 2023 I forgot to add, there are ground wires above the throttle pedal, to the left of the top fuse panel.. I'm rusty, you do have a fuse cover on top of the dash.. right?? Quote Link to comment https://www.bigmacktrucks.com/topic/72868-07-ctp713-granite-mack/#findComment-531550 Share on other sites More sharing options...
worellana88 Posted May 17, 2023 Author Share Posted May 17, 2023 Yes right under cb and above radio. Also one above the steering wheel adjuster foot pedal. So today it shut off 2x and ran 10 hours without cutting off. But I noticed hours were reading 12104 at 6am this morning then at 4pm it was reading like 12113 hours and like 30 minutes before it cut off it went back to 12104 after running 10 hours Quote Link to comment https://www.bigmacktrucks.com/topic/72868-07-ctp713-granite-mack/#findComment-531571 Share on other sites More sharing options...
Joey Mack Posted May 18, 2023 Share Posted May 18, 2023 I wonder if you now have a cluster issue.. Do you have a Volvo dealer that can re-program it or check it? I have had to bring clusters to Volvo in the past as a Core' and install the newly flashed unit.. 2007 VN D-13.. many years ago.. I wonder if it is still the same process.. ?? Quote Link to comment https://www.bigmacktrucks.com/topic/72868-07-ctp713-granite-mack/#findComment-531575 Share on other sites More sharing options...
worellana88 Posted May 18, 2023 Author Share Posted May 18, 2023 I’m right here in central North Carolina. I’m about 60 miles from Greensboro and 60 miles from Raleigh. I’ll ask them. Thanks again Jojo. I know the instrument cluster doesn’t buzz like it used too but that’s been out for about 4 years 🤷🏻♂️ Quote Link to comment https://www.bigmacktrucks.com/topic/72868-07-ctp713-granite-mack/#findComment-531576 Share on other sites More sharing options...
Joey Mack Posted May 18, 2023 Share Posted May 18, 2023 We have a Mack shop in Salisbury... Transource.... The Greensboro store may be the one to help. They have a store in Raliegh, and Rocky Mount is A Volvo dealer.. I worked for them for 4 1/2 years... Quote Link to comment https://www.bigmacktrucks.com/topic/72868-07-ctp713-granite-mack/#findComment-531577 Share on other sites More sharing options...
worellana88 Posted May 18, 2023 Author Share Posted May 18, 2023 Yeah I’m closest to Fayetteville I’m in Cameron nc but have been taking trips to Greensboro here lately. So I’ll call and ask if they have cluster re flashed I guess. Supposed to be having a guy check the harness really good for broken or rubbing wires. I think he’s Mack tech as well. Thanks again 1 Quote Link to comment https://www.bigmacktrucks.com/topic/72868-07-ctp713-granite-mack/#findComment-531578 Share on other sites More sharing options...
worellana88 Posted May 18, 2023 Author Share Posted May 18, 2023 This is all I’m getting this morning. It’s cut off 4 times already within 30 minutes now it won’t reset hours on the dash. Gonna try and check grounds today Quote Link to comment https://www.bigmacktrucks.com/topic/72868-07-ctp713-granite-mack/#findComment-531584 Share on other sites More sharing options...
Joey Mack Posted May 18, 2023 Share Posted May 18, 2023 You may want to lean the the cluster back and check the plugs in the back side. Along with checking grounds.. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/72868-07-ctp713-granite-mack/#findComment-531587 Share on other sites More sharing options...
worellana88 Posted May 18, 2023 Author Share Posted May 18, 2023 Ok I check cluster and grounds. Didn’t see anything broken, I unplugged computer plugs with key turned on. I heard something sound like it spooled or turned like resetting when I plugged them back in. then got back in cab looked at hours and they were not blank and it fired right up no problem 🤔. I’m no mechanic but I’m thinking messed up harness or bad computer????? Quote Link to comment https://www.bigmacktrucks.com/topic/72868-07-ctp713-granite-mack/#findComment-531600 Share on other sites More sharing options...
Joey Mack Posted May 18, 2023 Share Posted May 18, 2023 Run it and if it happens again, try that same truck to see if it fixes it again.. the mother board in the cluster can fail.. You can get one through Volvo, and they will flash it for you based on the VIN. Well, I had them done like that several years ago, hopefully the same way today.. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/72868-07-ctp713-granite-mack/#findComment-531602 Share on other sites More sharing options...
worellana88 Posted May 18, 2023 Author Share Posted May 18, 2023 So it ran 30 minutes stalled out fired back up without unhooking computer. But immediately cut off but then fired back up ran an hour and half stalled out had to un hook computer to fire it up then cut off 2 more times now I’m home it’s been running in the yard for about an hour no stalling 🤷🏻♂️ . When I unhooked computer I hear something spin or like reset then it will fire up. So I should reflash the cluster or just try and find another computer? Quote Link to comment https://www.bigmacktrucks.com/topic/72868-07-ctp713-granite-mack/#findComment-531605 Share on other sites More sharing options...
Joey Mack Posted May 18, 2023 Share Posted May 18, 2023 So is something loose and bumps in the road cause it to short out? Quote Link to comment https://www.bigmacktrucks.com/topic/72868-07-ctp713-granite-mack/#findComment-531606 Share on other sites More sharing options...
worellana88 Posted May 18, 2023 Author Share Posted May 18, 2023 No sir just sitting in my yard in the mornings warming up it stalls out. It’s never consistent. Like yesterday ran 10 hours before stalling. Quote Link to comment https://www.bigmacktrucks.com/topic/72868-07-ctp713-granite-mack/#findComment-531607 Share on other sites More sharing options...
Joey Mack Posted May 18, 2023 Share Posted May 18, 2023 Ok.. How about an over heating relay in the fuse panel.. Any chance you have an infrared thermometer to check relays? Yes you can use your finger tips, but its faster to use the infrared gun.. Quote Link to comment https://www.bigmacktrucks.com/topic/72868-07-ctp713-granite-mack/#findComment-531613 Share on other sites More sharing options...
worellana88 Posted May 18, 2023 Author Share Posted May 18, 2023 My mechanics switched some around about 2 years ago and it didn’t do it for 2 years. And it just started back about a month ago. I have moved relays around and completely swapped some out but it still does it. But maybe I’ll go buy a thermometer and check them out. Cuz I’d rather change relay than computer if that’s all it is. Hey I really appreciate all the help Jojo! Quote Link to comment https://www.bigmacktrucks.com/topic/72868-07-ctp713-granite-mack/#findComment-531614 Share on other sites More sharing options...
Joey Mack Posted May 18, 2023 Share Posted May 18, 2023 Your welcome,, The cheap harbor freight ones work fine.. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/72868-07-ctp713-granite-mack/#findComment-531615 Share on other sites More sharing options...
Joey Mack Posted May 18, 2023 Share Posted May 18, 2023 In response to your gratitude... This web site is Amazing.. There are a lot of really smart guys on here that are willing to help.. I suggest you KEEP this 'site' in your tool box..!! Jojo Quote Link to comment https://www.bigmacktrucks.com/topic/72868-07-ctp713-granite-mack/#findComment-531616 Share on other sites More sharing options...
worellana88 Posted May 19, 2023 Author Share Posted May 19, 2023 Yes sir I see there’s a lot of knowledge and wisdom on here. Thanks again I’ll keep you posted once it’s resolved. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/72868-07-ctp713-granite-mack/#findComment-531621 Share on other sites More sharing options...
Mackpro Posted May 19, 2023 Share Posted May 19, 2023 The dash cluster is not needed for the truck to run and drive. Drove several around the lot with cluster removed., The 04 emission MP7 in the CTP and CXP was a a little different as it was only made for only a little more than a year. The wiring is a little different than the 2008 and up MP trucks. Power to the engine Ecm comes from the fuse panel by the clutch pedal. Fuse 38 and wire # is F38A2. Power comes through the top connector on the outside of the fuse box , PIN number A . This connector is called the EPDME. It then goes through connector CIEC pin A , this is a 16 pin connector around the foot brake valve area. This is the usual problem area. With the engine running. Shake and twist this connector. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/72868-07-ctp713-granite-mack/#findComment-531652 Share on other sites More sharing options...
Mackpro Posted May 19, 2023 Share Posted May 19, 2023 Quote Link to comment https://www.bigmacktrucks.com/topic/72868-07-ctp713-granite-mack/#findComment-531653 Share on other sites More sharing options...
Mackpro Posted May 19, 2023 Share Posted May 19, 2023 Quote Link to comment https://www.bigmacktrucks.com/topic/72868-07-ctp713-granite-mack/#findComment-531655 Share on other sites More sharing options...
worellana88 Posted May 19, 2023 Author Share Posted May 19, 2023 Thanks Mackpro so I’ll take the covers off of the panel there at the pedals shake those wires and check on the firewall plugs too. I replaced ECM and Ignition relay today beside clutch pedal. Cut off 2times all day today and sputter one time like it was gonna cut off. Hours were 12111 when it cut off when I cranked it back up it was at 12107🤷🏻♂️ Quote Link to comment https://www.bigmacktrucks.com/topic/72868-07-ctp713-granite-mack/#findComment-531656 Share on other sites More sharing options...
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