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#1
01-10-2018, 11:54 AM
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92 300d 2.5 turbo won’t start.
I bought a 92 300d the other day that dosnt run. The guy said it was running one day and parked it. Than went to start it a few days later and it wouldn’t start. Say last time it ran was in August. Motor has around 350k on it. Was his daily driver up till than running fine. It turns over ok but won’t start. It’s got fuel at injectors. Ip was all wet so replaced ether o rings and copper washer on IP outlets. Another benz I had leaked around them to so had an extra set of orings/was her laying around. Even if you put a lil gas in air filter it won’t start. Glow plug light is coming on and powering up glow plugs. Plugged block heater in too to see if that would help, bc maybe glow plugs aren’t heating up good? Still no start. Any thing anybody might be able to tell me to check on this thing? I am a mechanic in real life so kinda know what I’m doing but jus scratching my head. Iv got a few 300d’s this model and also 123’s so been beating with old diesels for a while now. Thanks for any help...
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 93 300d-turbo 85 300d(svo)320k 83 300d 440k 84 300d(roommates)260k 83 300td(svo)250k 87 isuzu pup(diesel)svo 320k 96 nissan 240sx(turbo) 08 suzuki m50 95 e350 prowerstroke boxtruck 
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#2
01-10-2018, 12:01 PM
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Do you have voltage at the glow plugs?
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Satan creates nothing: he only ruins everything. He does not invent: he tampers. And his followers are no different ~ Archbishop Carlo Maria Viganò
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#3
01-10-2018, 01:19 PM
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Mine starts with being pluged in after 4 hours without glow plugs. Did you confirm the block heater is working, the valve cover shoud be warm to your hand. It takes 4 maybe 5 long cranks to bleed all the air out but seemslike you have that covered already.
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92 e300d2.5t 01 e320 05 cdi 85 chev c10
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#4
01-10-2018, 01:29 PM
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Yeah block heater is working. Motor was warmed up. Iv got to get a new battery for meter so can chech to make sure power is really getting to glow plugs. I did jump the glow plugs off with a hot wire to make sure they where getting power and sparked when connected so I know a few glow plugs are working. Normally on theses year cars the glow pug light will stay on if one or more glow plugs are burnt out. When cycling the key I hear glow plug relay clicking and the light comes on for a few and than goes off like it should when warmed up.
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93 300d-turbo 85 300d(svo)320k 83 300d 440k 84 300d(roommates)260k 83 300td(svo)250k 87 isuzu pup(diesel)svo 320k 96 nissan 240sx(turbo) 08 suzuki m50 95 e350 prowerstroke boxtruck
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#5
01-10-2018, 01:32 PM
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And I do have fuel at each injector when all are cracked. Still no start when all are closed up
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93 300d-turbo 85 300d(svo)320k 83 300d 440k 84 300d(roommates)260k 83 300td(svo)250k 87 isuzu pup(diesel)svo 320k 96 nissan 240sx(turbo) 08 suzuki m50 95 e350 prowerstroke boxtruck
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#6
01-10-2018, 02:51 PM
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Got voltage at all the glow plugs and fuel at all injectors. Might have to try to pull the glow plugs and see if the are good
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93 300d-turbo 85 300d(svo)320k 83 300d 440k 84 300d(roommates)260k 83 300td(svo)250k 87 isuzu pup(diesel)svo 320k 96 nissan 240sx(turbo) 08 suzuki m50 95 e350 prowerstroke boxtruck
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#7
01-10-2018, 02:52 PM
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It dosnt even try to start. Even with some gas on poured into the air box.
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93 300d-turbo 85 300d(svo)320k 83 300d 440k 84 300d(roommates)260k 83 300td(svo)250k 87 isuzu pup(diesel)svo 320k 96 nissan 240sx(turbo) 08 suzuki m50 95 e350 prowerstroke boxtruck
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#8
01-10-2018, 04:41 PM
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Quote:
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Current stable: 1995 E320 157K (Nancy) 1983 500SL 125K (SLoL) Gone but not forgotten: 1986 300SDL (RIP) 1991 350SD 1991 560SEL 1990 560SEL 1986 500SEL Euro (Rusted to nothing at 47K!) Gone and wanting to forget: 1985 524TD 167K (TotalDumpster™) [Definitely NOT a Benz]
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#9
01-10-2018, 03:33 PM
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Have you tried turning it over by hand to feel for compression? Removed the oil filler to see cam moving?
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92 e300d2.5t 01 e320 05 cdi 85 chev c10
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#10
01-10-2018, 03:35 PM
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compression?
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CC: NSA All things are burning, know this and be released. 82 Benz 240 D, Kuan Yin 12 Ford Escape 4wd You're four times It's hard to more likely to concentrate on have an accident two things when you're on at the same time. a cell phone. www.kiva.org It's not like there's anything wrong with feeling good, is there?
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#11
01-10-2018, 03:53 PM
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rotate it and see what the engine feels like. any resistance?
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Only diesels in this driveway.  2005 E320 CDI 243k Black/Black 2008 Chevy 3500HD Duramax 340k 2004 Chevy 2500HD Duramax 220k
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#12
01-10-2018, 03:57 PM
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Try running a bottle of purge from a bottle with fuel supply and return lines into the bottle.
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92 e300d2.5t 01 e320 05 cdi 85 chev c10
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#13
01-10-2018, 06:04 PM
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Yeah I’m gonna check compression next. Jus got to pull intake to get to some glow plugs so can install tester. Jus don’t know why it was running one day and then not a week later, as the guy said. He could not f been lying though so who knows. Thanks
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93 300d-turbo 85 300d(svo)320k 83 300d 440k 84 300d(roommates)260k 83 300td(svo)250k 87 isuzu pup(diesel)svo 320k 96 nissan 240sx(turbo) 08 suzuki m50 95 e350 prowerstroke boxtruck
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