Diesel Preheat in Progress - Bad glow plug cylinder 3

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whitey

New Member
Dec 25, 2018
21
3
3
Canada
Truck Year
2014
I notice amazon still has the 403 at a cheaper price
I'm thinking for the price its a good buy still?
TC
My alarm has been on for 2 days and 3rd day now no alarm
So I was hoping for spare parts when the plugs will need replacing
 

whitey

New Member
Dec 25, 2018
21
3
3
Canada
Truck Year
2014
Hey Guys
Replaced my glow plugs
did anybody have oil on the end of the glow plugs?
not sure how bad that is?
where wold the oil come from?
 

whitey

New Member
Dec 25, 2018
21
3
3
Canada
Truck Year
2014
Hey Guys
Replaced my glow plugs
did anybody have oil on the end of the glow plugs?
not sure how bad that is?
where wold the oil come from?
Hey all
i just found this information;

It is normal when you pull them out because there is a pit in which the glow plug sits and oil collects down in that pit while the glow plug is in place. Once you pull the glow plug the oil will drain into the cylinder, which is fine, you will burn the oil off once you start the truck.

So nothing to worry about, it's normal when pulling and replacing the plugs.
 

RacerX317

New Member
Dec 27, 2018
4
0
1
Truck Year
2016
Super helpful thread! Thanks guys! Life savers... my first one just went at 140k miles. Took 20 min just working it nice and easy. It was #3 so it sucked... but at least it wasn’t #6.
 

67_Valiant

New Member
Feb 9, 2020
7
1
3
Citrus Heights, CA
Truck Year
2015
I just purchased a 2015 Ecodiesel at auction. it had an engine fire, so the intake was melted. After getting the intake off, I noticed that 2 of the glow plug tips were loose, so I am going to replace them. I found that there is a Volvo part that crosses to the Bosch 0250603008 https://www.sparkplug-crossreference.com/convert/BOSCH_PN/0250603008

This part is not available in the US, but I was able to find a set of 5 in Germany on ebay for about $32 US shipped. The length on this part is exactly the same as the Bosch part (per the seller's spec). It's going to take a month to get here, but I'm in no hurry since I have other repairs to do anyway. This is also quite a bit cheaper than the best onshore price I can find.
 

67_Valiant

New Member
Feb 9, 2020
7
1
3
Citrus Heights, CA
Truck Year
2015
Should be interesting to see how it affects starting? I am not sure if there are different resistances or temperatures in glow plugs?
I measured the old ones at around 0.7 ohms. The new ones were at 1.4 ohms, so it will probably take twice as long. I'm in the Sacramento valley (California), so I probably won't need them very often anyway.
 

Ffeggleston

New Member
Mar 26, 2020
6
0
1
California
Truck Year
2016
So I’m not getting the full screen like the original post, but I do have the glo plug icon with this error code. Seemed to happen after washing the undercarriage of the truck and going through a lot of mud? If code is cleared it comes back randomly within a week? Any ideas 40DD8654-7F4D-45CC-BEB3-7C7681D3F18C.jpeg
 

Tremper126

Active Member
Feb 15, 2019
230
95
28
Partlow, Virginia
Truck Year
2014
Glow plug is intermittently faulting or poor connection. Could also be the glow plug relay, I believe that’s located near the ecm Towards bottom of chassis. Mine went a month beetween codes and ended up being glow plug
 

Ffeggleston

New Member
Mar 26, 2020
6
0
1
California
Truck Year
2016
Cleaned and went Away, then came back this morning. I’m pretty sure it’s not the glow plugs. Something is going on with the wiring and of module.
 

Tremper126

Active Member
Feb 15, 2019
230
95
28
Partlow, Virginia
Truck Year
2014
I’d dielectric grease your connections and start with the glow plug relay before attempting removal of the plugs, I fought with mine till I replaced the plug and it fixed the issue. It’s a pita to replace the plug. I’d advise beer and plenty of lube and time to ease it out, or take it to a diesel shop and let them do their magic.
 

Ffeggleston

New Member
Mar 26, 2020
6
0
1
California
Truck Year
2016
Replaced the glow plug yesterday and it went smoothly. I drove the truck about a half hour each way to/from the dealer to get the part so the engine was hot when I removed it. Here’s a quick step by step of what I did:

- Disconnect MAF senor, remove air box & air intake tube up to the 90 degree boot to the turbo
-removed the EGR Diffuser Tube to get a little more room to work (not really necessary but I would recommend)
-pull up on the small ‘t’ shaped plastic handle of the electrical connection to the glow plug. Might have to wiggle/twist as you pull but it should pop right off.
-spray some PB blaster, use a 6pt 1/4” drive socket and small 1/4” ratchet with a short extension (so you don’t use too much torque). Mine broke loose easily but started to get harder to turn after a couple if turns out. I just kept spraying PB and would go in and out a lil further each time. Probably took 20 mins of screwing in and out / waiting each time I sprayed PB for it to soak in.

New one went in just fine. Problem fixed!
Do you have some close up pics of exactly where the glo plugs are ? I see the plastic T handles.
 

Ffeggleston

New Member
Mar 26, 2020
6
0
1
California
Truck Year
2016
I’d dielectric grease your connections and start with the glow plug relay before attempting removal of the plugs, I fought with mine till I replaced the plug and it fixed the issue. It’s a pita to replace the plug. I’d advise beer and plenty of lube and time to ease it out, or take it to a diesel shop and let them do their magic.
Are you just referring to the location? That I can see as it was hard to get to the plugs. Cleaned and greased yet the error comes on intermittently with no rhyme of reason.