Hey folks,

I have a 98 e300D and Ive noticed over the last few weeks that if I run the car home from work 40miles and stop at the store it will NOT restart with out some MAJOR effort.

Its getting plenty of gas. If I crank it too much or for too long I can see th IP starting to heat up....

If I wait about 10-15 mins It will start with some coaxing..

Any ideas?

In the mornings when it is cold it will start right up... after work it will start right up... But dont stop anywhere on the way home...

If it has a vacuum shut off valve, pull the vacuum line next time it won't start and see if it starts. If it does, the ignition switch is not bleeding the vacuum off the shut off valve.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

Not to ask a dumb question.. Do I have one?? Where is it?

For a W210 ?

thanks Chris

valves to tight will do that.

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1996 s10 zr2 with a 6.5 turbo diesel
1996 c2500 suburban with a 6.5 turbo diesel
1981 300sd with a turbo 617
Monte carlo figure 8 car

I think his 98 e300D has Hydraulic Valve Lifters.

Kerry's idea seems like a good one.

I was thinking there something wrong with what ever gives the EGR Vacuum. The EGR should not be on during starting.

Too much Crankcase Pressure will push the Vacuum Shutoff into the Shutoff direction. Try Starting with the Oill Fill Cap loose. If it works you may need to clean out your crakcase vent system.

I doubt if this is the case but trouble Starting when it is hot is a symptom of a worn out Elements in the Fuel Injection Pump.

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84 300D, 82 Volvo 244Gl Diesel

That car does not have a vacuum shut-off. It is an electrical device. It should be suspected.

If the shut-off valve on the side of the IP is not bad, the problem could lie in the K40 relay module, or the ignition switch.

Or, maybe it leaks more air into the lines when it's hot. You could see that. A 2" bubble before the pre-filter when the engine is stopped is not a cause for alarm.

also, if it's been run on WVO the IP's are known to be difficult to start when hot.
a 98 is more likely electronic though... unless it's not CRANKING when it's hot.
then it's likely a starter issue.

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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 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

heh, skipped right over his year.

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1996 s10 zr2 with a 6.5 turbo diesel
1996 c2500 suburban with a 6.5 turbo diesel
1981 300sd with a turbo 617
Monte carlo figure 8 car