240 Not Starting

  • Thread starter Thread starter Jason Williard
  • Start date Start date
J

Jason Williard

I have an issue that I'm hoping someone could offer some guidance to. This
morning, I started my 87 240 DL to find that it didn't want to stay started.
It starts and then immediately dies. If I hold down the accelerator, it
will keep running, but as soon as I let go, it dies. Does anyone have any
clue as to what could be causing this?

Thanks,
Jason Williard
 
Check under the hood for vacuum hoses that are detached or cracked, most
likely that will be your culprit
 
Check what Jason said, then unplug the airmass meter. If it runs better that
is probally the problem.
 
Jason Williard said:
I have an issue that I'm hoping someone could offer some guidance to. This
morning, I started my 87 240 DL to find that it didn't want to stay started.
It starts and then immediately dies. If I hold down the accelerator, it
will keep running, but as soon as I let go, it dies. Does anyone have any
clue as to what could be causing this?

Thanks,
Jason Williard
Click to expand...

Classic symptom of a failed air mass meter.
 
With the ignition OFF, unplugt the Air Mass sensor. It is in the big plastic
tube between the Air cleaner and intake. There is a release you need to
squeeze.

If the car then starts and idles, the problem is in the air mass sensor or it's
wiring. You can drive it in "Limp Home" with the AMS disconnected but it has NO
power, Sometimes cleaning the plug contacts works. But it is usually the
sensor. There are much better prices on line than what the dealer wants.

I wish I had known that when I limped to the dealer and emptied my checking
account. Lack of an Air Mass sensor is also the reason I like my 94 940s with
Regina injection.

Al


Had
79 245 D,
81 240 D,
86 240 320,000mi and running fine when traded
94 944 Green 257,503 mi CRUNCH Parted out
Have
94 944 White 149,000 The New one
94 944 Maroon 135,000 mi
 
Check what Jason said, then unplug the airmass meter. If it runs better that
is probally the problem. >
Click to expand...

If this is what it is wrong , check the wiring harness also - it could be the
insulation falling apart and shorting. My air mass meter failed as a result of
a shorted harness. No use putting a new air mass meter in only to have the
harness short again.
 
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