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#1
07-06-2006, 04:51 AM
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300sdl No Pressure In Cooling System When Hot!
My 300sdl was running for about 3 months perfect, a bit hotter then I would like. There is a coolant leack from the Engine block heater, very small. That crap will go as soon as I get some time to take it all out and plug it.
For the last couples of days I noticed that after I drove the car for several hours in 105 Degrees weather I HAVE NO COOLANT PRESSURE! At all. The car does not overheat runs at about 90 - 95 at all times. Could it be that leack from the block heater? or the cap? how bad is it? It scaries me 
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1987 300SDL __________________ Pic of this car: http://www.gigapipe.net/300SDL/index.htm 
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#2
07-06-2006, 11:37 AM
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Any leak will reduce pressure in your coolant system however generally a leak in your block heater bad enough to keep it from holding any pressure will cause considerable coolant loss. If your coolant loss isn't that much then you probably have a leak up high. I would try replacing the filler cap first. Of course fixing this leak will make your block heater leak worse so plan on fixing that too.
__________________
green 85 300SD 200K miles "Das Schlepper Frog" With a OM603 TBO360 turbo ( To be intercooled someday  )(  Kalifornistani emissons  )white 79 300SD 200K'ish miles "Farfegnugen" (RIP - cracked crank) desert storm primer 63 T-bird "The Undead" (long term hibernation) http://ecomodder.com/forum/fe-graphs/sig692a.png
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#3
07-06-2006, 04:35 PM
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What are your symptoms of "no coolant pressure at all"????
How did you come to this conclusion?
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