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#1
01-22-2008, 06:58 PM
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Loud Clunking noise...what is it?
Every once in a while, after a colder night (San Diego - 40 degrees...yeah I know I know.), the car doesn't want to start right away. I figure that its fuel related...
But, I also hear a loud clunky noise. The noise comes from the passenger side of the vehicle...could be inside the passenger side door, just below underneath, or maybe the firewall. The clunking is accomanied by a knock that can be felt as the engine tries to turn over. Once the vehicle is running, the noise disappears. Only while cranking the starter and trying to get the car started first thing in the morning. Just wondering if any of you know what's happening, and whether its something to be concerned with?
__________________
1982 240 D, 308,000 - 321,127 miles (sold) 1982 300 TD,166,500 - 226,000 miles 1998 E 320, 120,000 - 144,000 miles 2005 C 230 K, 26,000 - 77,000 miles (sold) 
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#2
01-22-2008, 07:04 PM
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If the car doesn't start up instantly at 40F, then you really need new glow plugs. Also possibly fuel filters....
The knock may just be the engine firing unevenly when trying to start due to dead glowplugs.
__________________
-diesel is not just a fuel, its a way of life-  '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k)
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#3
01-22-2008, 07:38 PM
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Quote:
Fuel filter...maybe. But none of the other fuel filter symptoms...
__________________
1982 240 D, 308,000 - 321,127 miles (sold) 1982 300 TD,166,500 - 226,000 miles 1998 E 320, 120,000 - 144,000 miles 2005 C 230 K, 26,000 - 77,000 miles (sold)
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#4
01-22-2008, 07:42 PM
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my 85 300d will make a similar noise while cold starting , found broken studs under air filter assembly to be the rattle and banging, try looking there! Also plug up your heater on cold nights this should be helpful. good luck.
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#6
01-22-2008, 08:01 PM
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Quote:
__________________
1982 240 D, 308,000 - 321,127 miles (sold) 1982 300 TD,166,500 - 226,000 miles 1998 E 320, 120,000 - 144,000 miles 2005 C 230 K, 26,000 - 77,000 miles (sold)
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#7
01-22-2008, 08:28 PM
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I'd second on the air filter. When my mounts were bad that thing made some hellacious noise. A little bit off topic, but where do you get your bio from? I've been getting mine from that place off El Cajon blvd, but it's been kinda pricey.
__________________
"spreading a trail of obnoxious where ever we go" 1981 300sd w/ 341,500 miles http://www.wecrash.com/pics/ddda_banner.gif
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#8
01-22-2008, 09:45 PM
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Air filter mounts.
Mine were failing and I said fark it I'm busy... Well the third one broke so at idle I got a Bang Bang Bang in tempo with my engine (kind of cool, my car can rap with it's bad injector  ).Anyway, in the time it took to order new ones form Fastlane and install them two days after they came in I had based a hole in the side of my air cleaner housing by way of the valve cover. I'd change those sooner if I were you and learned from my stupidity... -nB
__________________
'83 300D Turbo Current: ???K mi - 19.2mpg -> 17.4mpg -> 22.9mpg  ---> ODO Died  bought at: 233.8K mi - 10MPG  For $1.00  3.5 cylinders work: 320 320 100 340 280 Got insurance? FarmersReallySucks.Com
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#9
01-22-2008, 10:21 PM
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Exhaust could clunk if something is loose and you have a glow plug out. Just because they are new does not mean one might not be disfunctioning. If it runs unevenly for a minute or so on startup and smokes blue then smooths out that probably is it.
Tom W
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.  [SIGPIC]..I also have a 427 Cobra replica with an aluminum chassis.
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#10
01-23-2008, 12:16 PM
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Quote:
yeah, that's the only place in town, for now. They'll be sorry for price gouging once a few more bio shops open up, which should happen soon.
__________________
1982 240 D, 308,000 - 321,127 miles (sold) 1982 300 TD,166,500 - 226,000 miles 1998 E 320, 120,000 - 144,000 miles 2005 C 230 K, 26,000 - 77,000 miles (sold)
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#11
01-23-2008, 12:20 PM
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Quote:
No smoke regardless of fuel. This morning it fired right up with a full tank of ULSD... I think its the fuel and cool weather we've had here lately.
__________________
1982 240 D, 308,000 - 321,127 miles (sold) 1982 300 TD,166,500 - 226,000 miles 1998 E 320, 120,000 - 144,000 miles 2005 C 230 K, 26,000 - 77,000 miles (sold)
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1981 300SD 512k OM603 
Linear Mode
