I have a 2015 and my glow plug 6 has been causing issues. I had it replaced under warranty and some other warranty fixes done. The glow plug light went out and came back on over and over again and the dealers, plural as I have went to a couple, all day the glow plug is fine and they can’t figure it out. I started turning off my heat when I shut the truck off and when I start the truck i don’t have the heat going. This has been about two months and my glow plug light does not come on now. If I turn my truck on with the heat on in a couple days the glow plug light starts blinking. I live in MN so not being able to use the auto start stinks. I now keep the heat off and have not had to deal with the glow plug light blinking at me. After it is started, I can turn the heat on and I have not had any issues since doing this. I’m thinking something with the wiring is causing this but a dealer will charge a ton of money. I am going to keep turning the heat off when I shut the truck off as long as that is the fox it is free... hope this helps some peopleHello to you all!
I come to this page after months of worry, research, clearing codes and eventually a trip to my local dealer. Let me give you a little insight on my ram first. I purchased my truck in August 2018 from a local small used car lot. 113k miles and truck in great shape. Around 117k in October I take it for an oil change and fuel filter change. End of October and my cel light and preheat in process light start to flash while trying to get to work. So I hit the internet.
Now, all I saw for google results is broke off glow plugs in sprinters and cabs coming off for head replacement. Now I’m not one for patience expecially when it comes to a vehicle I haven’t even owned for a year. My second gen 1500 was very loyal. Hints why I got a newer dodge. So I stop by the local parts store to check the codes after work. Low and behold #4 glowplug codes out the rear end. P0674 and P06BC riddled the scanner. So I take pictures of the screens and reset and clear lights. BOOM TRUCK FIXED.
WAIT! Mid December with the bed full of Christmas goodies I approach a stop light and guess what starts flashing. Now at this point I’m debating how I can get a road flare into the fuel tank. 45 days later my codes are back. As you can imagine I’m not very happy considering I’ve hardly made a dent in my loan and I’m having to trouble shoot what I thought was a good deal. So I stop by the store and borrow the code reader again. Same codes, so I price a glow plug and start to locate tear down instructions and debate if I should try the module first or just redo all the plugs. Well that black plastic cover on top of your motor? That’s there for a reason.
I pull it off and see a pile of wires and hoses and plugs and stuff I’ve only seen in space shuttles in movies. So that went back on quickly. Now, I’m half way mechanically inclined. Rebuilt motors, rears, swap out a transmission, but I know my limits.
With the codes reset and no clue where to start to get to the plug I prayed for a natural fix as the cel and message flashing is not a problem turning up the radio could fix.
Well Sunday the light comes on as I leave church. So I stop by the store again and reset the same codes and purchase road flares and head home. Call my dealer Monday morning, part is in stock 390$ to replace including parts. Drop it off tueseday at 830 am as scheduled. Ask how Long repairs are normally they say Wednesday afternoon it should be good to go. Wednesday morning I get a call saying part is ordered it’ll be in later that day or Thursday morning. The tech can’t find a code anywhere in computer so I relay the codes I found to the advisor. Tech didn’t want to replace a plug if he couldn’t see a plug code, well I don’t blame the man plus it’ll help my bill. Thursday afternoon they call me and say the tech inspected every ground and connection and found a few looking bad. Fixed and truck is ready for pickup. I was advised if the codes come back bring it straight in and they will diagnose for free and then will replace the plug!
Shew, I’m feeling lucky. They told me worst case my bill would be 13k!!!!! I wasn’t looking for that so my fingers are crossed that the issue is resolved! I just wanted to share my experience for those who encounter this issue
I thought buying new would alleviate these problems as well. Only 3100 miles and this happens. I guess if this is it for the life of the truck I will be lucky!I am sorry to hear these horror stories. That is why I bought my truck new. Tradesman for $30,000. When you drive it for 10 years the annual amortization is less than $2500 a year, or about $200 a month. I drive her tenderly and get 27mpg combined. When I drive highway, I keep her at 60mph and that saves a ton of fuel! I park her inside when the temp gets in the 30s. I change the oil at 8500 miles. I use Power Service Diesel Kleen to increase cetane, clean the injectors, and lubricate the fuel pump. I will change out the transmission fluid at 50k. I will do that the lazy way just with the drain plug. NOTE! Put it in reverse for a 10 seconds to backflush the filter. At 100k, if I want to keep her for 250k, I will replace the pan with an aluminum one, and replaceable filter.
Was yours throwing a constant code or intermittent at start up? Mine hasn’t been back on since Saturday.Finally got this fixed today! Light came on, took it straight to the dealer so they could see the P06BC code.
They replaced the #4 glow plug and no more flashing light!
It didn't take that long so the plug must not have been very corroded in the head.
Good luck with your issue