CRD having hard time starting in cold temps - JeepForum.com
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post #1 of 23 Old 12-09-2014, 09:06 AM Thread Starter
BJJ
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CRD having hard time starting in cold temps

I have done quite a bit of searching on here and can't quite find the answer I'm looking for so here goes.

I've owned my 07 CRD for about 6 months now and have been very impressed with it so far. I have done the basic maintenance to it (oil, fuel filter, etc) and it is running great, and pulls my 22' boat without issues.

Now to my problem, it is starting to get cool here in SC (won't say cold because its not that bad) but any night that is below say 40F/4C the jeep will take two or three full cranking cycles to finally turn over. Not getting any codes or lights, glow plug light on the dash lights up and goes off as it should, I have no clue. If I plug in the block heater overnight it fires right up no issue.

Any ideas what could be the problem. Jeep has 95k miles currently.

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post #2 of 23 Old 12-09-2014, 09:23 AM
simonbartlett
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2006 WK 
 
Join Date: Nov 2014
Location: Verwood
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Mine was the same when i got it and it was the glow plug module. The new ones are slightly different. 10 minute job yourself and only about 6 little bolts. Mine was about 130.
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post #3 of 23 Old 12-09-2014, 10:07 AM
japeart
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2007 WK 
 
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Location: Edmonton
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Hows your battery?

start of 2013 my jeep would start ok down to -25C (-13f) without the block heater, but over the winter the battery failed. got a new oem one under warranty from jeep but im not too happy with it. Since the new battery the jeep has trouble starting at around -20C (-4f) and just wont start below that without the block heater. glows are fine, had the new gp controller put in Dec 2012. Running the same oils so it shouldn't be any harder to start.

07 Grand Cherokee - 3.0L CRD - GDE Hot Tune - QDII - OME HD - 255/75/17 BFG MT
Black WK Club #156
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post #4 of 23 Old 12-09-2014, 10:44 AM
oldsmoke
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Mine has always started fine down to about -20C but I do use a fuel additive that improves the cold weather starting and reduces fuel gel. The fuel filter is really fine mesh in these things and winter diesel can vary a bit sometimes in cold flowability.

Diesel Ecotune-DPF, 32" tires, 2" lift. 4xGuard bib, tow hooks
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post #5 of 23 Old 12-09-2014, 10:54 AM Thread Starter
BJJ
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Quote:
Originally Posted by simonbartlett View Post
Mine was the same when i got it and it was the glow plug module. The new ones are slightly different. 10 minute job yourself and only about 6 little bolts. Mine was about 130.
I may have to check the glow plugs with the multimeter then.
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post #6 of 23 Old 12-09-2014, 10:55 AM Thread Starter
BJJ
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Quote:
Originally Posted by japeart View Post
Hows your battery?

start of 2013 my jeep would start ok down to -25C (-13f) without the block heater, but over the winter the battery failed. got a new oem one under warranty from jeep but im not too happy with it. Since the new battery the jeep has trouble starting at around -20C (-4f) and just wont start below that without the block heater. glows are fine, had the new gp controller put in Dec 2012. Running the same oils so it shouldn't be any harder to start.
New battery 3 months ago, it never gets below 25F ish/ -3C here at the coast so the temps aren't that cold
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post #7 of 23 Old 12-09-2014, 12:20 PM
simonbartlett
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Quote:
Originally Posted by BJJ View Post
I may have to check the glow plugs with the multimeter then.
I believe its normally the module rather than plugs.
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post #8 of 23 Old 12-09-2014, 12:27 PM
simonbartlett
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Quote:
Originally Posted by BJJ View Post
I may have to check the glow plugs with the multimeter then.
I believe its normally the module rather than plugs.
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post #9 of 23 Old 12-09-2014, 06:19 PM
TurboDiesel
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Location: langley
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mine takes abit to start lately aswell

battery and GPM are 2 years old

really need to buy some fuel additive see if that helps

2008 CRD // GDE Eco // DPF delete // 3" intercooler // OME HD // 265 dirtytracs etc.
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post #10 of 23 Old 12-09-2014, 07:13 PM
caddydaddy
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Quote:
Originally Posted by TurboDiesel View Post
really need to buy some fuel additive see if that helps
Here's what I use: http://www.xtremediesel.com/XDP-Dies...-XDDPP116.aspx

It was 20 F yesterday, and it started right up.

2007 CRD Limited w/QDII
GDE HOT Tune, Turbo Resonator Delete
2" RC lift
185,000+ miles!
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post #11 of 23 Old 12-09-2014, 07:19 PM
willyok
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I'm glad I don't live in a cold climate! Hopefully I don't get stationed in one!
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post #12 of 23 Old 12-09-2014, 08:26 PM
caddydaddy
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Quote:
Originally Posted by willyok View Post
I'm glad I don't live in a cold climate! Hopefully I don't get stationed in one!
Don't hold your breath! The military moved me from Maine to New Orleans and now to CT! These temperature extremes are killing me!

2007 CRD Limited w/QDII
GDE HOT Tune, Turbo Resonator Delete
2" RC lift
185,000+ miles!
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post #13 of 23 Old 12-10-2014, 05:21 AM Thread Starter
BJJ
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Tested the glow plugs, all were good. Power going to the glow plug module but nothing going to glow plugs themselves.. Believe I've found the issue. Let you know if the new module fixes it.
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post #14 of 23 Old 12-10-2014, 06:21 AM
BAH101
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Don't forget, the ground for the glow plug system is on one of the legs for the fuel filter. Could have been left off or loose. Good spot to check.

2008 CRD QDII, OME HD, Pintlers wheels with 265/70/17 Goodyear Silent Armour's, Jeepinbyal UCA's. 4XGuard Front guard, Side Guard, belly guard, Matrix HC. GDE ECO Tune w/ delete.
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post #15 of 23 Old 12-10-2014, 12:55 PM
ryann04
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Posts: 327
I am having the same problem now too.

Last winter I could let me jeep sit outside for a week parked in -30*c weather, not plugged in. Then I would start it ZERO problems.

This winter I have to plug it in or it wont start, even at -5*c. I ordered up 6 new glow plugs and a glow plug module for less than $500.00/shipped. I am hoping this will fix the problem. From what I am told as well, the Glow Plugs are a maintenance item as well, they should be tossed and replaced every 150K max anyways. The glow plugs and the module itself will be an issue sometimes even though the vehicle does not provide a CEL. The Battery can also be an issue, the Jeeps are very problematic with batteries that are on the verge of going.

Keep us posted with results, it turns out to be a process of elimination sometimes.

2008 - Jeep Grand Cherokee - 3.0L CRD - Quadra Drive II - GDE Hot-Tune - OME HD Lift Kit - OEM Full Steel Skids
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Blue WK Club Member #42 // DIESEL FTW !!!! -Ryan
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