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#1
12-31-2013, 11:37 AM
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Loud ticking from engine
I have isolated the noise, but I don't know what the part is called and can't find it listed in any diagrams. It sits up top between the vac pump and the front of the engine and is aluminum and rectangular shaped.
Also, any ideas why this is clicking so loud? The car starts and runs, feels like it is running out of gas every once in a while. 
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#2
12-31-2013, 01:41 PM
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Someone might be able to help you if you told us which engine and model you are writing about.
__________________
'79 240D
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#4
12-31-2013, 01:50 PM
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Yup. Model, year, engine at minimum and a picture of the mystery box would be terrific also
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__________________
"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco...  " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod 2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."
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#5
12-31-2013, 02:03 PM
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My guess is you have a w123, and the vacuum pump you are describing is the power steering pump, and the rectangular device on the front of the engine would be the vacuum pump... noisy vacuum pump is a bad thing.
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 560SL convertible 1987 190D 2.5-5SPEED!!!  1987 300TD 2005 Dodge Sprinter 2500 158"WB 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#6
12-31-2013, 03:18 PM
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It could also be the cruise control servo. I have heard them make a clicking sound before.
__________________
 All Diesel Fleet 1985 R107 300SLD TURBODIESEL 2005 E320 CDI (daily) LOTS of parts for sale! EGR block kit http://www.peachparts.com/shopforum/diesel-discussion/355250-sale-egr-delete-block-off-plate-kit.html 1985 CA emissions 617 owners- You Need This! Sanden style A/C Compressor Mounting Kit for your 616/ 617 For Sale + Install Inst. Sanden Instalation Guide (post 11): http://www.peachparts.com/shopforum/diesel-discussion/367883-sanden-retrofit-installation-guide.html
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#8
12-31-2013, 04:57 PM
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Cruise control servo as noted above.
__________________
1979 300D 040 Black on Black - 1985 300D Maaco job (sadly sprayed over 199 Black Pearl Metallic) on Palamino http://i.imgur.com/LslW733.jpg The Baja Arizona Oil Burners Send a message if you'd like to join the fun  Left to Right - UberWasser, Iridium, Stuttgart-->Seattle,, mannys9130 Visit the W123 page on iFixit for over 70 helpful DIY guides!
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#10
12-31-2013, 06:04 PM
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Mine went to ticking for a while. Since my cruise control was inop anyway I just removed it.
__________________
Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar. 83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 401,xxx miles 08 Suzuki GSX-R600 M4 Slip-on 26,xxx miles 88 Jaguar XJS V12 94,xxx miles. Work in progress. 99 Mazda Miata 183,xxx miles.
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#11
12-31-2013, 06:38 PM
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Quote:
__________________
All Diesel Fleet 1985 R107 300SLD TURBODIESEL 2005 E320 CDI (daily) LOTS of parts for sale! EGR block kit http://www.peachparts.com/shopforum/diesel-discussion/355250-sale-egr-delete-block-off-plate-kit.html 1985 CA emissions 617 owners- You Need This! Sanden style A/C Compressor Mounting Kit for your 616/ 617 For Sale + Install Inst. Sanden Instalation Guide (post 11): http://www.peachparts.com/shopforum/diesel-discussion/367883-sanden-retrofit-installation-guide.html
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#12
12-31-2013, 08:04 PM
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Follow the cable from the "VDO" box to an 8-pin plug on the left fender just ahead of the black relay box on the wheel well. Unplug the connector.
If you want your cruise to work again: Remove the lower dash panel on the drivers side. Look up you will find a shiny aluminum can about the size of a paperback book right above the brake pedal. Do not remove the two philips screws that seem like the obvious choice, but find the 10 mm bolt hidden in the bracket (visible if you look straight up from below). Unplug the amplifier connector and slide the amp out of its location. Contact JamesDean on this forum, he rebuilds the amplifiers.
__________________
The OM 642/722.9 powered family Still going strong 2014 ML350 Bluetec (wife's DD) 2013 E350 Bluetec (my DD) both my kids cars went to junkyard in 2023 2008 ML320 CDI (Older son’s DD) fatal transmission failure, water soaked/fried rear SAM, numerous other issues, just too far gone to save (165k miles) 2008 E320 Bluetec (Younger son's DD) injector failed open and diluted oil with diesel, spun main bearings (240k miles) 1998 E300DT sold to TimFreeh 1987 300TD sold to vstech
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