hellspcangel911

my 87 300tdt is having difficulty turning off. I drive the car, pull into the driveway, put the car in park, turn the ignition off, pull the key out, and about 3-5seconds later the engine turns off.
I replaced the valve when this problem originally started happening, and then it was fine for about a month, now this.
the only thing that happened was that I had the transmission rebuilt (very reputable shop, they have rebuilt over 20 trannys for me, 8 of these 300tdt trannys).

I know there is a electric kickdown switch under the gas pedal, and the rest of the system is vac and cable operated, but the kickdown doesnt always work when im driving... I have had 3 of these cars and driven over 600,000 miles total on them, and i have never had an issue like this..

help

floodkid

Lock your doors. inside or outside with a key. never took the time to really figure out the problem, but its got something to do with the vacuum leak somewhere.

300tdt, nice. turbo wagon? id like to see pics of that.

hellspcangel911

On my car the locks are controlled by a vacuum pump under the passenger rear seat, independent of the ignition one. On my last 300tdt when i had the problem I hooked up one of those motors to a toggle switch and a "T" connector to the fuel shut off valve.. hit the switch and it kills the engine.. but I really just want to have this solved.... and mercedes doesnt make it easy with all of those fragile tubes running around the engine.. the leak could be anywhere.......

the gray one is my 87 300TD (turbo diesel 3.0L auto, 133k) the gold one is a 92 300TE 4matic 260k.
The last 87 300TD I had until 475,000 miles, mostly maintance free, 3 or 4 transmissions, did the exhaust once (under recall along with a new turbo at 215,000 miles, 3 alternators, 2 startes, glow plugs once, 5 batteries, and tons of tires)... original fuel pump though! LOVE DIESEL
.. right now shes still running her RONAL R9s, black with a polished lip, kickin it ole'school


thanks!!

floodkid

1) see if locking the door helps, lock and let sit a second. press the gas little and usually itll kick off (for me at least)
2) go online and order a few rolls of vacuum tubing and start replacing. make sure you get the right ones though. // Or have a shop do it for you.


haha score

shadowgriffen

LOVIN EM'! Hot wheels man!

hellspcangel911

thanks bro, I love your headlights and ground effects, you got a website?

shadowgriffen

Hey thanks man! but that's a p-chop of my car!

but those headlights are REAL

this is my baby

hellspcangel911

i knew the ground effects were too good to be true lol

did you paint the back of the side view mirrors or were they like that?
from youre plate it looks like your from MA? I dont know if you would happen to have any interest in a black MB grill? I got one kickin around from my old 300te..

Always nice to meet someone that loves their car as much as i love mine!

Geh

Love your E Estates!! So Jealous, I really wanted a TE But the Wagons were more expensive and harder to find let alone Diesel W124's in My Country

Love your Cars, Hope You find and fix the problem

hellspcangel911

so it turns out that the valve i replaced a few months ago.. the actuator that shuts the diesel off to the engine.. well the nipple on top that the line connects to broke off.. so when the key turned off the there was a vac leak ontop of the valve.. the reason for this is that the new replacement valves are made from plastic and have the nipple on the top while the originals are metal and have the nipple on the side towards the driver side.

i spoke to a diesel tech that told me the plastic ones hold up fine for tens of thousands of miles, but if you are constantly tinkering with your engine then its very easy to accidentally snag the vac line and break the plastic nipple... 20 minutes later i had a NOS metal valve installed and it was turning off like it was supposed to.

I also used this opportunity to disconnect the line to the EGR valve.. shif a bit better, better MPG and better for the long haul..

hope this helps someone else later on.
\
thanks!

shadowgriffen

Check you inBOX!

shadowgriffen

I got my mirrors from a 91 white 300E

made a HUGE difference appearance wise...now if I can only get the side pannels!

ZorroAMG

Chop fooling people FTMFW!

shadowgriffen

Lol!