Disco 2 Dificult start on td5

This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
hugle

hugle

Member
Posts
68
Location
Skopje, Macedonia
Hey gents,

Recently i noticed that when i leave my td5 not working couple of days on the cold, it's struggling to start at first attempt.
Changed the battery with brand new. Still having issue.
When cranking the engine after 3rd time attempt and pressing the pedal, smoke comes out and engine starts.
Another thing which is interesting is that after the star, all the resrt cranks of the engine are perfect first time.

What could be wrong

Respect all the opinions and advices.

Zoki
 
Hi Zoki
Thought it was cranking but not starting?
If its cranking and not starting there is a small list of things to check.
Are your glow plugs working ok? Check on here for advice on how to check them.
If its running ok when it does start then that should rule out fuel pump/fuel pressure.
Does it idle ok for more than a few minutes? Or do the revs slowly fall until it stops?
Does it start better if you do a fuel purge?
If the answer to either of the above is yes, then it sounds like injector seals.
Check if your oil level is rising/smelling of diesel
Mark
 
Hy Mark, sorry for causing you misunderstanding. The engine starts perfect after 3rd attempt. The iddle is perfect then, the revs slowly goes down as the temp rises and stays come( the engine is not shuting down). All the rest of the atemps, the engine starts from first time. As a matter of fact, the engine runs fine all the time but only on the situation as i mentioned before.For the glow plugs, im not having info how to check them.
markomate2 said:
Hi Zoki
Thought it was cranking but not starting?
If its cranking and not starting there is a small list of things to check.
Are your glow plugs working ok? Check on here for advice on how to check them.
If its running ok when it does start then that should rule out fuel pump/fuel pressure.
Does it idle ok for more than a few minutes? Or do the revs slowly fall until it stops?
Does it start better if you do a fuel purge?
If the answer to either of the above is yes, then it sounds like injector seals.
Check if your oil level is rising/smelling of diesel
Mark
Click to expand...
 
Hi Zoki
Sounds like it could be glow plugs then.
Type Glow Plug testing into the search on the forum, there is a lot of info!
Ive not had that problem myself so I cant give much advice, but there is plenty on here!
со среќа! (hope thats right!)
Mark
 
Hi Mark, you got the "good luck" quote perfect :) thanks !
sorry for writing you so late but I was busy.
This morning at -7 degrees temperature i warm the heaters once, turn off egnition, warn them again and it started better than usual. You are right, could be the heaters. Now, plan when to change them and find what's the best brand.

Thanks Mark
Zoki
markomate2 said:
Hi Zoki
Sounds like it could be glow plugs then.
Type Glow Plug testing into the search on the forum, there is a lot of info!
Ive not had that problem myself so I cant give much advice, but there is plenty on here!
со среќа! (hope thats right!)
Mark
Click to expand...
 
Hi, that '' warm the heaters once, turn off egnition, warn them again" is not the way to do with a Td5 cos the glow plugs are still working for enough time after the lamp is off, up to 3 minutes(or even more) according to the coolant temp, the lamp just shows you when it's time to start it not that the plugs are off or on, it's managed exclusively by the ECU based on coolant temp sensor input, next morning do the purging sequence first(ignition on II, depress fully and consecutively 5 times the throttle then wait untill the MIL(engine) warning light stops flashing) then try to start it and if it starts on first attempt could be two things:
1. injector washers
2. air bleed valve(WJN500110) in the rear outer port of the filter housing, it would be good to change this one first cos it's cheap and easy

btw, dont depress the throttle on cold start cos you'll flood the engine, better purge it or leave the ignition on few seconds more after the glow plug lamp is off than messing with the throttle other way than the purging sequence

to check the glow plugs unplug them and measure resistance across head and plug's terminal, you should get very close to 0.9 Ohm, anything different is not good, also when you unplugged one ask somebody to trurn ignition on while you are measuring voltage in the plug against body to rule out the relay, it's enough in one plug cos they are all on the same feed
 
Last edited:
Hey friend, just tru al the advices :( no luck. I assume i have some air in the piping system because when I purged the pump sound didn't stop at the end....buzzing all the time noice. :( I guess the air comes inside somehow. It's also strange because I don't have this issue in the summer...please advice
sierrafery said:
Hi, that '' warm the heaters once, turn off egnition, warn them again" is not the way to do with a Td5 cos the glow plugs are still working for enough time after the lamp is off, up to 3 minutes(or even more) according to the coolant temp, the lamp just shows you when it's time to start it not that the plugs are off or on, it's managed exclusively by the ECU based on coolant temp sensor input, next morning do the purging sequence first(ignition on II, depress fully and consecutively 5 times the throttle then wait untill the MIL(engine) warning light stops flashing) then try to start it and if it starts on first attempt could be two things:
1. injector washers
2. air bleed valve(WJN500110) in the rear outer port of the filter housing, it would be good to change this one first cos it's cheap and easy

btw, dont depress the throttle on cold start cos you'll flood the engine, better purge it or leave the ignition on few seconds more after the glow plug lamp is off than messing with the throttle other way than the purging sequence

to check the glow plugs unplug them and measure resistance across head and plug's terminal, you should get very close to 0.9 Ohm, anything different is not good, also when you unplugged one ask somebody to trurn ignition on while you are measuring voltage in the plug against body to rule out the relay, it's enough in one plug cos they are all on the same feed
Click to expand...
 
replace the air bleed valve then purge it and if after that it still makes tricks you'll have to replace the injector washers(and seals) cos if the washers are worn combustion gas gets through them into the fuel rail
 
Hi Zoki
Sorry, forgot that the glow plugs stay on for a while!
Did you follow sierrafery,s advice about glow plug resistance? Are they definitely getting power to them?
One thing you could try is to remove the relay for the glowplugs (sierrafery, is this ok advice?) and see how that affects the starting, if its even harder to start then you could assume the glow plugs are ok and its what has been mentioned before, injector seals or air bleed valve.
I assume you have cold weather diesel in Macedonia? The stuff we get in Estonia is ok down to -25 but has been known (but I have no evidence!) to mess some diesel systems up.
Mark
 
I also think so, because when the heater indicator stays longer on the dash...im having this issue. In summer period i dont have thia issue, but then the weather is so fricking hot. About the diesel standards...they say its up to -20 degrees.
It's very strange, when hot i dont have this issue, when cold and heater lamp stays loner i have the issue. Im not sure i will now how to check the resistane, but i will get a new heaters set...they are not that expensive here. Ehat do you think, should i proceed with heaters or bleed valve??
TAH said:
Heater plugs - check them - bet one or more are kaput
Click to expand...
 
You must log in or register to reply here.

Similar threads

B
TD5 Temp gauge drops to 1/4
Replies
3
Views
296
Bugz
B
C
Rebuilt Defender 110 Td5 SW WON’T START
Replies
11
Views
2K
adseybear
adseybear
L
Disco 2 struggles to fire
Replies
6
Views
1K
Dervishi
Dervishi
T
TD5 no start and C0573 fusebox connector ?!
2
Replies
23
Views
3K
sierrafery
sierrafery
C
Won’t turn over
2
Replies
26
Views
2K
CRS
C
Back
Top