Cold weather starts - Yikes ! !

MooseMeat · **Posted:** Thu Dec 07, 2006 5:20 pm

Do all CRD’s sound like they are going to throw a rod after sitting all day at work? :shock:

High of 14deg.F here today.

Endurance · **Posted:** Thu Dec 07, 2006 5:22 pm

I love that sound. I even roll down the window in the mornings to hear the rattle!

Goglio704 · **Posted:** Thu Dec 07, 2006 5:24 pm

Not just all CRDs, all diesels sound like they are going to explode when cold.

gd5092 · **Joined:** Wed Apr 26, 2006 4:11 pm **Posts:** 62

It's music!. too bad the cat system eliminates the smell for added enjoyment - only ULSD at the pumps around here, even less rattle & smell.

-G

MooseMeat · **Posted:** Thu Dec 07, 2006 5:29 pm

I don’t remember the Cummings ever sounding this bad.

My Dad’s ford now that’s a different story.

RFCRD · **Posted:** Thu Dec 07, 2006 5:33 pm

MooseMeat wrote:

Do all CRD’s sound like they are going to throw a rod after sitting all day at work? :shock:

High of 14deg.F here today.

You noticed that too. I think it lights faster than the oil pressure can build. Mine also rattles like hell running on winter blend.

Jeger · **Posted:** Thu Dec 07, 2006 5:35 pm

Oh, YEAH. I love that sound. Reminds me of hopping on a dozer or backhoe in the winter time. Wanna see some black smoke rolling.... try stomping on the throttle when she's cold like that. Actually, I havnt tried that with the jeep, and probably wont, but a D4 Cat will look more like a locomotive when its running cold.

Jimbob · **Joined:** Thu Nov 02, 2006 11:05 pm **Posts:** 160

I actually have been surprised how quiet mine is but I have only had it down to 25 degrees (havent seen a glow plug light yet).

Power serve doesnt seem to quiet it down but the Redline Fuel Catalyst sure does!

Tinman · **Joined:** Mon Apr 10, 2006 10:45 am **Posts:** 308

MooseMeat wrote:

I don’t remember the Cummings ever sounding this bad.

My Dad’s ford now that’s a different story.

I had a brain burp the other day at less than freezing temps and forgot to let the grid heater cycle before I tried to crank the 01 Cummins. Trust me, it'll fuss in the cold without the grid intake heater. Kinda cool actually. I didn't think that heater was doing much, but I guess it does. I never had any fuss before.

MooseMeat · **Posted:** Thu Dec 07, 2006 7:21 pm

I was spoiled when I drove OTR, the Freightliner Classic would start it's self to keep engine temp up, so I never had a cold start in that, or got into a cold cab for that matter.

It had a monster cat diesel with a super 10 what an awesome set up that was.

rs4mtnitro · **Posted:** Thu Dec 07, 2006 7:41 pm

MooseMeat wrote:

I was spoiled when I drove OTR, the Freightliner Classic would start it's self to keep engine temp up, so I never had a cold start in that, or got into a cold cab for that matter.

It had a monster cat diesel with a super 10 what an awesome set up that was.

My volvo at Swift had that.

KJbob · **Posted:** Fri Dec 08, 2006 11:53 am

We've had a couple of cold spells lately (0-10 degress F) and when mine sits outside all day and I start it up; Yikes :shock:

After about 30sec to a minute it settles down.

oldnavy · **Posted:** Fri Dec 08, 2006 12:33 pm

Wife has stated the CRD doesn't seem to start as easy as her TDI, but I was able with VAG-COM to tweak the TDI to near perfect timing.

One thing she really likes about the CRD over the TDI is the heater works fast, infact it will put out hot air and gage reach normal temp range faster then my gasser Magnum.

I pulled out of my garage last night and drove 4 miles to pick up my daughter at work and then drove the highway route home without the engine reaching 100*F and never any thing but luke warm air come out the heater. It was only 13 degrees outside this morning at 6:30 which is about 5 degree's colder then last night, and the wife called and said the jeep was putting out hot air from heater within 1/2 mile from the house and was at normal temp before she got to the highway 3 miles from the house. She really like the CRD heater after all these years of freezing her ars off in the VW's.

europachris · **Posted:** Fri Dec 08, 2006 3:15 pm

oldnavy wrote:

One thing she really likes about the CRD over the TDI is the heater works fast, infact it will put out hot air and gage reach normal temp range faster then my gasser Magnum.

Amen to that! My TDI takes a good 10 miles to get reasonably warm when it's below 10F outside. The wife's CRD is blowing hot air within a mile.

The only saving grace on my TDI is the heated seats. I don't think I'd be able to tolerate the lack of heater performance otherwise....

Chris

huxrules · **Posted:** Fri Dec 08, 2006 4:17 pm

We are just now getting out cold weather snaps down here in Texas. I haven't noticed increased engine noise- however I have noticed how hard the thing is to stop. The first stop results in an engine stall- just like it is stuck in gear. I guess its back to the shop for me!

retmil46 · **Posted:** Sat Dec 09, 2006 2:58 am

Oughta try an 80's MB with a good case of injector nailing. Starting in the parking lot at work the last couple of nights has been interesting, down in the 20's. Fires right up and runs smooth until the glow plugs cycle off, then starts missing and bucking like a bronco, until the coolant starts getting warm enough to register on the gauge. Nice big cloud of grayish white smoke until she's warm and happy.

When I got home last night, dug out the extension cord and plugged in the block heater on the '87. This morning at 10, temp still at 30 outside, it fired right up and kept idling smooth as you please once the GP's shut off, no clouds of smoke either.

Strange thing, even without a supplemental coolant heater like the CRD, the '87 looks to warm up just as fast, up to operating temp within a couple of miles.

Taking the '87 in to the MB dealer next Tuesday for a good going over. Hopefully they can get rid of that ball peen hammer that keeps hitting the side of the engine below 1500 rpm. Nothing sounds quite as obnoxious as injector nailing.

Ranger1 · **Joined:** Mon Oct 17, 2005 7:40 pm **Posts:** 1137

retmil46 wrote:

Oughta try an 80's MB with a good case of injector nailing. Starting in the parking lot at work the last couple of nights has been interesting, down in the 20's. Fires right up and runs smooth until the glow plugs cycle off, then starts missing and bucking like a bronco, until the coolant starts getting warm enough to register on the gauge. Nice big cloud of grayish white smoke until she's warm and happy.

When I got home last night, dug out the extension cord and plugged in the block heater on the '87. This morning at 10, temp still at 30 outside, it fired right up and kept idling smooth as you please once the GP's shut off, no clouds of smoke either.

Strange thing, even without a supplemental coolant heater like the CRD, the '87 looks to warm up just as fast, up to operating temp within a couple of miles.

Taking the '87 in to the MB dealer next Tuesday for a good going over. Hopefully they can get rid of that ball peen hammer that keeps hitting the side of the engine below 1500 rpm. Nothing sounds quite as obnoxious as injector nailing.

If the MB dealer wants to install new injectors, maybe a diesel purge treatment as described on tdiclub.com might save some expense... worth a shot if they want a couple of grand for an injector or two.

I had a tremendous nailing sound when I bought some Walmart diesel the first summer I owned the CRD - I mean nailing like a jackhammer - I thought a rod was going to come through the block. Put some bio in it and PS and it stopped. Never bought anymore Murphy diesel after that.

Drewd · **Joined:** Mon Feb 06, 2006 12:24 pm **Posts:** 902

If I'm wrong please correct me but from what I know, the awful racket made by any diesel engine in cold weather starts is mainly from the injector timing being advanced significantly to help the compression ignition process until block fully warms up. You'll notice that the engine is fairly sluggish when its very cold out and once it is warmed up, the timing resorts back to normal and engine is much peppier.

My TDI is just as loud in morning.

no-blue-screen · **Posted:** Sat Dec 09, 2006 3:33 pm

It is totally normal. My 2006 Jetta TDI...which is now wrecked and gone....sounded like someone driving a steak into the ground with a huge hammer when it was below 25F.....as the previous poster stated...this is due to the advanced timing....Just today when starting the liberty it was a little louder 20F around here early this morning...and it does take longer to crank over...but was only slightly louder than normal.

If I am not mistaken....these engines have something called "pilot injection" which injects a very small amount of fuel before the main combustion to balance out and allow the engine to run queter.

McMoney · **Posted:** Sun Dec 10, 2006 4:24 am

From being up north I can tell from experience that it takes some doing to get the CRD to start at -25 C. Glow plugs only come on for about 5 seconds, but takes a fair bit of cranking to get it to catch. Sounds like an old cummins for 30 second but then smooths out. Pluggin in helps makes it start like it is summer. Also the engine mounts freeze at below -30 C. The engine aint that smooth with frozen mounts, feels like it will shake apart. :shock:

Cold weather starts - Yikes ! !

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