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#1
01-21-2009, 10:21 PM
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1987 190D cold start issues
Hello,
Our 190D 2.5 (602 non-turbo) is giving us some problems that I have ignored until now. When starting cold it starts quickly, but only seems to be running on a few cylinders for a min or two. Here is a video of the car starting, I glowed the GPs for 2 full cycles first. I didn't touch the accelerator pedal until about 32 sec into the video. The air temp is in the low 20's F. Also, the fuel as cold weather treatment in it, and the GPs are just a year old and are working fine. I think its time I do a compression check, and pull the injectors to check for pop pressure and spray pattern. What do you think? Thanks http://www.youtube.com/watch?v=r9RH0ziT6bA
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-Randy Wakefield 1969 220D 4 speed (parts car) 1976 280C 1976 280S 1981 240D 4 speed (parts car) 1982 300D 1983 300TD (Ivory) 1983 300TD (gold) 1985 300TD (gray) 1987 190D 2.5 1970 280SEL (sold) 1977 240D 4 speed (sold) 1974 280 (rusted to death) --- 1927 Chevy 4 door sedan 1938 Chevy 2 door sedan 1950 Willys Jeepster 1955 Studebaker President 4 door 1977 Ford F250 1979 Glastron 17' 1948 John Deere A 1960 John Deere 2010 1979 Satoh S650G -- 2000 Bichon (Doby) 
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#2
01-22-2009, 08:32 AM
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One question, how do you know the GP's are fine. There are some really lousy GP's out there. I'd check the resistance of each GP to make sure. To me it really looks like a GP issue.
I would also try to idle the car at 900rpm. The '84's and I think yours also should kick up the idle when it is cold. The '84's do it through a vacuum switch that checks coolant temp. Finally, I'd run some diesel purge and give the injectors a thorough "cleaning" before pulling them. It is unlikely that you have bad injectors, because, it is likely that it would always run less than good - even after warmed up. There appears to be some temp dependency on injectors, but a clogged injector is a clogged injector. 20F is not very cold. My 190D with 400kmi starts just fine at 0F so its not the temp.
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Jovan '84 (11/83) 190D 2.2 5-Speed; Silver/Blue; Motor No. 00354, 402k mi (340+kmi mine) '89 Porsche 911 Turbo Coupe; Black/Black; 53kmi '05 BMW 530i 6-Speed; 302kmi '19 Range Rover; 30kmi
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#3
01-22-2009, 01:26 PM
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#4
01-22-2009, 05:44 PM
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I guess I assumed new glow plugs a year ago were ok, they didn't seem to fix the problem, so we moved on. What should the resistance of each plug be? The car has started w/o being plugged in as low as 0 F, it starts quickly but "acts up" for a longer time. The car does idle faster for a bit when first started, then it slows back down to normal speed. I'm kind of thinking maybe a cylinder low on compression could cause this, but I don't know why just one or two would be down.
Thanks
__________________
-Randy Wakefield 1969 220D 4 speed (parts car) 1976 280C 1976 280S 1981 240D 4 speed (parts car) 1982 300D 1983 300TD (Ivory) 1983 300TD (gold) 1985 300TD (gray) 1987 190D 2.5 1970 280SEL (sold) 1977 240D 4 speed (sold) 1974 280 (rusted to death) --- 1927 Chevy 4 door sedan 1938 Chevy 2 door sedan 1950 Willys Jeepster 1955 Studebaker President 4 door 1977 Ford F250 1979 Glastron 17' 1948 John Deere A 1960 John Deere 2010 1979 Satoh S650G -- 2000 Bichon (Doby)
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#5
01-26-2009, 10:42 AM
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bump
__________________
-Randy Wakefield 1969 220D 4 speed (parts car) 1976 280C 1976 280S 1981 240D 4 speed (parts car) 1982 300D 1983 300TD (Ivory) 1983 300TD (gold) 1985 300TD (gray) 1987 190D 2.5 1970 280SEL (sold) 1977 240D 4 speed (sold) 1974 280 (rusted to death) --- 1927 Chevy 4 door sedan 1938 Chevy 2 door sedan 1950 Willys Jeepster 1955 Studebaker President 4 door 1977 Ford F250 1979 Glastron 17' 1948 John Deere A 1960 John Deere 2010 1979 Satoh S650G -- 2000 Bichon (Doby)
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