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#1
01-28-2006, 08:50 AM
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99 E300 DT No Start
Had installed six new glow plugs, new MAFS in the last four months. Ran fine, except for a little lag around 1,500 RPM.
Noticed a hard start problem when hot recently. Went to deaelr they had it for two days and finally said it needs a starting module $1,200.00 but it will continue to start. It will nor start eventually. Left the garage door open a few nights ago, went down to start and it just cranked, almost started then cranked. Heated up the fuel lines, filter and block . After a few minutes it started, figured it gelled up. Two days later went to start the car almost turned over then just cranked. Changed the filter, almost started then just cranked. Can't seem to see any air in the clear fuel lines and car has plenty of fuel in it. Glow plug light comes on normal and goes off normal. Could be a coincidence that the module went the same time I left the door open, I guess. Any dieas? 
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#2
01-28-2006, 01:00 PM
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Diesel no-start?
Did the Dealer run a compression check? Low compression is one uncurable reason for poor cold starting.
Are you sure the glow plugs ARE coming and staying on--just because the red light comese on/off does not mean the glow plugs ARE heating. Turn on the dome light and even th eheadlight and watch their brightness. When th eglow plugs 'turn-off' , the other lights should greatly increase in brightness. If they do not change--suspect no current to the glow plugs. What actual temps are you experiencing? Do you have fuel suitable for those temps? #2 is real marginal below 20F.
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#3
01-28-2006, 06:37 PM
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The fuel is treated. I did not think to check if the plug relay is working. That could be it. It went from hot start problems to cold start problems. It would start up in any weather until last week.
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#4
01-29-2006, 11:58 AM
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Glow plugs good
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#6
01-29-2006, 06:26 PM
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Diesel no start?
Diesels are very reliable normally.
If the compression is up to snuff If the glow plugs are heating up If the injector pump is pumping unless the injection timing has been badly screwed up--it WILL start. Is it possible your fuel cut-off is remaining closed, not allowing fuel delivery? Take some of the lines loose at the injectors amd make sure it IS delivering fuel.
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