300 tdi doesn't like the cold any suggestions - Defender Source
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  #1  
Old January 20th, 2016, 01:45 PM
Fender
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Reinier
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300 tdi doesn't like the cold any suggestions

300 tdi is a real cranky old girl when the temps drop below -5 at - 18 it takes four attempts to her to fire
So far
New glow plugs 11.5 volts at the plugs
Shell t6 5w 30 synthetic
Set the valves
Battery is year and a half old 12.6 volts cold big battery
Any ideas folks?
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  #2  
Old January 20th, 2016, 01:50 PM
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John B.
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Temperatures in C?

Try glowing twice.

Check timing. A little advanced is helpful.

Beyond that, more complex things to look at like compression and injector spray pattern.
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  #3  
Old January 20th, 2016, 01:51 PM
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block heater and battery warmer from Canadian Tire ?
http://reviews.canadiantire.ca/9045/...ws/reviews.htm

http://reviews.canadiantire.ca/9045/...ws/reviews.htm
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  #4  
Old January 20th, 2016, 02:12 PM
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-18 should start no problem. It if needs a block heater at that temp, there is something wrong.

It needs to crank FAST. The bat may be at 12.6 but with low power reserves causing a slow crank. Get it load tested.

My diesel swapped cruiser was a PITA in the cold until I addressed the cranking speed. The batts load tested fine at Canadian Tire but were just weak enough to cause a slower crank and it would not fire. I brought them into an alternator rebuilder who actually load tested them properly and diagnosed them bad.

Now it will start at -35 on the first hit, half a crank and she's lit.
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  #5  
Old January 20th, 2016, 04:14 PM
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Is the cable from battery to starter sized correctly?
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  #6  
Old January 20th, 2016, 04:27 PM
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Quote:
Originally Posted by GM13 View Post
Is the cable from battery to starter sized correctly?
And are the terminals correct and tight, could be getting an inadequate charge causing slow spins
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  #7  
Old January 20th, 2016, 05:46 PM
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All the battery connections are tight had a loose one but not much improvement all temps are in Celsius, I will have to check the crank speed
my 200 tdi rangie starts at -18 and half the glow plugs aren't working right! So far I'm really unimpressed with the 300 especially that idler pulley that eats bearings and serpentine belts
And now the non starting
I will have the bat tested how do i advance the timing?
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  #8  
Old January 20th, 2016, 05:56 PM
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Check your grounds!!
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  #9  
Old January 20th, 2016, 06:50 PM
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Quote:
Originally Posted by Fender View Post
All the battery connections are tight had a loose one but not much improvement all temps are in Celsius, I will have to check the crank speed
my 200 tdi rangie starts at -18 and half the glow plugs aren't working right! So far I'm really unimpressed with the 300 especially that idler pulley that eats bearings and serpentine belts
And now the non starting
I will have the bat tested how do i advance the timing?
Does it seem to crank slower than your 200? Maybe it was timed wrong when someone did the timing belt. Timing has a huge effect on cold starting and the factory timing method is pretty hokey so it could be out. I'd make sure it cranks good and fast before messing with the timing.
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  #10  
Old January 20th, 2016, 08:11 PM
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It sounds silly, but grab one of these http://www.defendersource.com/forum/...ter-65129.html only way to be sure you don't have a lazy starter on your hands.
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  #11  
Old January 20th, 2016, 08:15 PM
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My truck is the same way if it sits for a few days in those temps. Do you have a AGM Battery. They hold up better in the cold than a wet type battery. CCA is an important number. But like Doug says the engine block heater will do wonders.
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  #12  
Old January 21st, 2016, 01:58 PM
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Just because you have 11.5v at the glow plug does not mean they are all working. you need to disconnect them and use a multimeter to check them individually.. and you didn't say how long you are glowing them before you attempt to start it.
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  #13  
Old January 21st, 2016, 03:01 PM
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Had a similar start up scenario when I drove a 300TDI daily.
Installed a 3.1 KW starter (stock starter is 2.2 KW) and installed a new battery and problem solved.
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  #14  
Old January 21st, 2016, 03:02 PM
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Quote:
Originally Posted by Capt Milks View Post
But like Doug says the engine block heater will do wonders.
I have one these on my vee-8
Amazon.com: Kat's 24250 250 Watt 4"x 5" Universal Hot Pad Heater: Automotive

but I put this block heater in one of the freeze plug holes of the Tdi.

http://www.amazon.com/gp/product/B00...ilpage_o07_s00


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  #15  
Old January 21st, 2016, 03:10 PM
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block heater will fix it. I have same issue and i have tested glow plug and they work correctly. if it is 10F or below it needs a block heater

fuel could also be issue. needs to be winter blend
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  #16  
Old January 26th, 2016, 04:36 PM
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Thanx for all the replies! Its my wifes truck so I dont drive it often just hear about it when something breaks
I changed the thermo time glow plug timer with a spare the plugs seemed to be on forever on the old switch even in summer
Hasnt been cold enough to give trouble it starts first try but ive noticed a big voltage drop when i had it out this weekend
Block heater is not viable theres no where to plug it in at her work 1700 bucks for a wabasto ouch!
I will post my findings as i go through it this may be handy for other first time 300tdi owners
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  #17  
Old January 26th, 2016, 04:54 PM
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You can usually find a used Webasto for around $500 if you keep your eyes open. New ones are more like $1000.

Webasto Thermo TOP C Diesel 12V Auxiliary Water Coolant Heater 5 KW | eBay

Never, ever buy anything retail in Canada!
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  #18  
Old January 27th, 2016, 01:05 PM
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Thanx yeah 1700 bucks but thats installed doesnt look to difficult to diy the bunk heater was a bit better at 800 installed is there a combo unit available in canada?
Whats the best AGM battery for the 300 tdi talking to the wife last night she thinks battery is causing part of the problem everytime it gets cold theres a huge volt drop until the alternator can catch up especially when running the heater and lights (alternator was new 6k ago)
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