OK, here’s the problem. My ’82 diesel Rabbit has developed a sort
of a "stumble" under hard acceleration. The engine begins to accelerate,
then sort of "hesitates", there is a momentary loss of power, and then
everything is fine. It seems almost as if one or more of the cylinders is
failing to fire. It’s not especially cold out, and I haven’t put any
treatment into the fuel. It could be just a bad tank of diesel, but it’s
beginning to worry me. (I’m going to be relying on that car a great deal
over the next several months to go on some fairly long trips). Any ideas?
Bad fuel? Sudden, unforseen injector troubles? (It just started happening
all of a sudden.) Serious internal problems? Clogged fuel/water seperator?
Anyone? Thanks in advance…
–
|Tom Guptill | tgpt_…@uhura.cc.rochester.edu (internet) |
|CPU Box 277445 U of R | " " @db1.cc.rochester.edu (alt internet) |
|Rochester, NY 14627 | " " @uordbv (bitnet) |
|(716) 274-0156 | |
In rec.autos.vw, tgpt_…@uhura.cc.rochester.edu (Tom Guptill) writes:
>OK, here’s the problem. My ’82 diesel Rabbit has developed a sort
>of a "stumble" under hard acceleration. The engine begins to accelerate,
>then sort of "hesitates", there is a momentary loss of power, and then
>everything is fine. It seems almost as if one or more of the cylinders is
>failing to fire. It’s not especially cold out, and I haven’t put any
>treatment into the fuel. It could be just a bad tank of diesel, but it’s
>beginning to worry me. (I’m going to be relying on that car a great deal
>over the next several months to go on some fairly long trips). Any ideas?
>Bad fuel? Sudden, unforseen injector troubles? (It just started happening
>all of a sudden.) Serious internal problems? Clogged fuel/water seperator?
>Anyone? Thanks in advance…
I had a problem with misfiring with my diesel Rabbit, but it was only at
high revs, and would continue so long as I stayed at high revs. Thus my
suggestion is a long shot, but it is easy to check.
My problem was that I was getting air into the fuel system. Once was due to
a faulty fuel filter. The second time was due to leaving the air bleed screw
open. Since there is a clear fuel line running from the fuel filter to the
injector pump (at least in my car), I could see the fuel. When I reved the
engine and watched the line, I could see the fuel turning into pure foam.
Hope this helps.
Donald Borowski WA6OMI Hewlett-Packard, Spokane Division
"Angels are able to fly because they take themselves so lightly."
-G.K. Chesterton
Thanks for the responses…I found my problem. A line had ruptured
in the fuel system, and it was spraying diesel all over the block! (That
could have gotten _really_ unpleasant.) Of course, my friend who borrowed
the car didn’t notice and drive it for 10 hours like that. Oh, well.
Thanks!
–
|Tom Guptill | tgpt_…@uhura.cc.rochester.edu (internet) |
|CPU Box 277445 U of R | " " @db1.cc.rochester.edu (alt internet) |
|Rochester, NY 14627 | " " @uordbv (bitnet) |
|(716) 274-0156 | |
In article <31170…@hpspkla.spk.hp.com> borow…@hpspkla.spk.hp.com (Don T. Borowski) writes:
- Hide quoted text — Show quoted text -
>In rec.autos.vw, tgpt_…@uhura.cc.rochester.edu (Tom Guptill) writes:
>>OK, here’s the problem. My ’82 diesel Rabbit has developed a sort
>>of a "stumble" under hard acceleration. The engine begins to accelerate,
>>then sort of "hesitates", there is a momentary loss of power, and then
>>everything is fine. It seems almost as if one or more of the cylinders is
>>failing to fire. It’s not especially cold out, and I haven’t put any
>>treatment into the fuel. It could be just a bad tank of diesel, but it’s
>>beginning to worry me. (I’m going to be relying on that car a great deal
>>over the next several months to go on some fairly long trips). Any ideas?
>>Bad fuel? Sudden, unforseen injector troubles? (It just started happening
>>all of a sudden.) Serious internal problems? Clogged fuel/water seperator?
>>Anyone? Thanks in advance…
>I had a problem with misfiring with my diesel Rabbit, but it was only at
>high revs, and would continue so long as I stayed at high revs. Thus my
>suggestion is a long shot, but it is easy to check.
>My problem was that I was getting air into the fuel system. Once was due to
>a faulty fuel filter. The second time was due to leaving the air bleed screw
>open. Since there is a clear fuel line running from the fuel filter to the
>injector pump (at least in my car), I could see the fuel. When I reved the
>engine and watched the line, I could see the fuel turning into pure foam.
>Hope this helps.
>Donald Borowski WA6OMI Hewlett-Packard, Spokane Division
>"Angels are able to fly because they take themselves so lightly."
> -G.K. Chesterton
On another note, after changing my air filter on my ’84 turbo-diesel I
started getting terrible mileage. Well terrible by diesel standards. My
mileage went from about 5-6 l/100 km to 8.5 l/100km. What was the problem?
I forgot to tighten the large clamp that attached the air filter box to
the air intake hose. After tightening the clamp all was well.
Rob Silcher d…@mc4adm.UWaterloo.ca