Reply With QuoteI would start by testing the glowplugs
Fossicker
SupporterHi everyone,
We have a Diesel D3 that isn't starting the first time it is turned over (most of the time) but will start on perhaps the 3rd or 4th try, then runs fine.
Occasionally it will start first go.
Background in the last few weeks is that our local mechanic replaced the oil pump for an oil leak. They are not specialists but did work with assistance from one of the independents here in Adelaide.
I get no faults on the Gap tool, appears to show plenty of fuel pressure while cranking and once it starts it runs really well.
One thing to note is that it wasn't immediately after the Mechanic visit, the starting issue appeared a day or so after. It started fine that morning and then after a site visit it just didn't start.
I initially thought it might be the FOB not deactivating the immobilizer, but both the sets of keys are experiencing the issue and I have been advised that wouldn't be the case. I wondered if it was fuel, perhaps the low pressure pump, but then once running it is fine and the pressure looks good.
Given it is a Diesel, it has oxygen and compression, the only variable is fuel. The local mechanic had another look at it yesterday and I asked him about the injectors, he confirmed they appeared to be getting pulses so I expect they would be injecting.
One of the team at TRS was not really able to suggest anything, he hadn't heard of it happening before. Just wondering if anyone has a suggestion as to what would impact this and how I would test and resolve it?
As an aside, can anyone tell me where on the coolant tank the level should be, I haven't been able to find a definite answer in my searches.
Thanks all
Michael
Adelaide
I would start by testing the glowplugs
I've never seen a D3 tank, but the D4 has two lines that mark the cold and hot levels
Master
SubscriberHi,
I'd be checking glow plugs first up. Check that one or more hasn't been un plugged or the loom damaged somehow.
Good luck
LuckyLes
Fossicker
SupporterIssue occurs 10 minutes after turning off the engine, doesn't matter if it is cold or hot.
Not sure if the glow plugs would affect that would they?
Fossicker
SupporterHave you checked all of your fuel line connections as it may be leaking fuel or sucking in a small amount of air into the system and it has to re-prime the fuel system.
Crank angle sensor can cause that.. No fault code either
Fossicker
SupporterWhere is the Crank Angle Sensor located?Originally Posted by josh.huber
Is it near where the flywheel would be secured while replacing the oil pump?
ChatterBox
SubscriberI'd be taking it to a diesel fuel injection specialist and getting them to do a leak down test of the injectors, you'll probably find that whilst they are getting pulses, they are probably reaching the limits of their flow range ( I.e they are wearing out). Reason for poor starting is that they cannot atomise the fuel enough to create combustion. As you said, you have o2cand pressure, so fuel being the only variable, and if pressure from thr lp and hp pump is good, it has to be on the fuel rail, and most likely injectors. The pcv in the fuel rail can stick too, but that usually gives a code, so I'm leaning toward your injectors being the culprit. If they are, best bet is to replace all 6, don't forget you'll need new fuel connection pipes and crush washers too, usually provided with the new injectors.
Swaggie
It's located on the left side on the TDV6.
Crank angle sensors can deteriorate with age. Monitor its live values as the engine is cranked to see the stability or otherwise of the signal produced.
MY21.5 L405 D350 Vogue SE with 19s. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
VK2HFG and APRS W1 digi, RTK base station using LoRa
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