Readout the error code stored, fix the problem, then it goes again.
Next time, please write model, year etc.
Niels
Model, year? If it's a 240 or 7(4/6)0, could be the FPR. Fairly simple
(and cheap) to replace.
Beverly
--
Many a smale maketh a grate -- Geoffrey Chaucer
How frequent is the failure?
Apparently it starts working again on its own; if so, how long do you have
to wait and does it start like nothing ever happened?
If it doesn't always start right up again or after waiting a while, is there
anything you do that seems to help?
Are the failures in clusters, or never one right after another, or
completely random?
Never when the engine is cold, or doesn't matter?
Does it have a tach, and if so, does the tach drop like a stone or does it
follow the engine speed down?
Does the engine cut out with a bit of a jolt like you'd turned the key off,
or does it take a second or so to die (especially when going slowly)?
These answers can focus the investigation.
Mike
Allan
... and Michael Pardee spake, saying:
Very likely to be the fuel pump relay. This is a common failure in
740/760 because the relay runs very hot, and the solder joints crack.
No. There is no oil pressure cutoff, and if you run out of oil to the extent
the engine stops running, it will do the same as any car and just stay that
way. My son's "learner" car was an old Subaru and he neglected the oil. He
called me to say the engine came to a stop when he stopped at a light and
would not crank. By pulling the plugs and putting oil in the cylinders we
were able to get it running again for a week or so (until it threw a rod),
but most seize and stay that way until the whole thing is disassembled. When
my sister-in-law did that to her mother's Oldsmobile I put a socket on the
crankshaft to see if the engine would turn - it felt like it was welded to
the engine.
Mike
Go with the fuel pump relay - resolder or replace - first. If the problem is
still present there are some other common sources of intermittents, but the
relay is modestly priced, easy and a very good suspect.
Mike
I have the exact same year and model and mine did the same thing. I tried
the fuel pump relay first. But it turned out to be the Crank Position
Sensor,commonly called the RPM Sensor.Only cost $30 or so.Takes about 10
minutes to install.
Please, could anyone tell me where I find the CPS on this car, and also
which relay is the fuel pump relay (not white in this car)
I had all the relay's out yesterday, and could not see any error, and
neither could I measure any error.
we have changed the power stage module, sparks, checked the fuel pump.
What is the FPR ??? I see someone mention this as a possible reason.
Best Regards
Geir R.Pettersson
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I understand that the relay can go bad, but since it must work now and then,
what could be the reason, after I have checked all the soldering points (re
soldered all point's)
I might find the CPS before anyone answer, but I still might need help.
I had similar problem in my Jeep, and then it was caused by bad connections
in the CPS.
--
Best Regards
Geir R.Pettersson
grp.a...@heating.no
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"Geir R.Pettersson" <grop...@online.no> skrev i melding
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What injection system does this car have? In the US they were all
LH-Jettronic but it sounds like perhaps you have CIS?
Can you hear the fuel pump under the car running? Does it have spark? I had
one occasion where the fuel pump broke internally, I could still hear it
running but no fuel was being pumped.
--
Best Regards
Geir R.Pettersson
grp.a...@heating.no
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"James Sweet" <james...@hotmail.com> skrev i melding
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http://www.vlvworld.com/indexframe.html?700/Section_2_5.htm
Relay for K-jet injection
The relay is green like on this page, I opened it, cleaned it with some
stuff for electronic boards, have gone trough all soldering points, in fact,
to me the Relay looked new, we have only had the car 6 month, so I have no
idea if it has been changed before.
As you understand I am a newbie when it comes to car, so could you tell me
if this car has a CPS, and if so where I find it ?
Best Regards
Geir R.Pettersson
grp.a...@heating.no
http://www.arctic-heating.com
"Boris Mohar" <borism_...@sympatico.ca> skrev i melding
news:8pnk51d1f5b5vur5r...@4ax.com...
> On Sun, 10 Apr 2005 16:41:01 +0200, "Geir R.Pettersson"
<grop...@online.no>
> wrote:
>
> >Me again,
> >"FPR" I know it now (I am just stupid).
> >Anyway I think I have located all the relay's, took them all out and have
> >opened the one who could be opened, gone trough every soldering point in
> >every relay, cleaned the connectors and so one, no help, still not start.
> >
> >I understand that the relay can go bad, but since it must work now and
then,
> >what could be the reason, after I have checked all the soldering points
(re
> >soldered all point's)
>
> Fuel pump relay can also develop intermittency due to contact wear. Glue
> two pieces if fine grit abrasive paper back to back an cut off a small
strip.
> Use it to clean contacts. The white fuel pump relay has toe relays ont
the
> circuit board. The one that has contacts closest to the center if the
board
> will exhibit more contact wear.
>
>
>
> Regards,
>
> Boris Mohar
>
> Got Knock? - see:
> Viatrack Printed Circuit Designs (among other things)
http://www.viatrack.ca
>Me again,
>"FPR" I know it now (I am just stupid).
>Anyway I think I have located all the relay's, took them all out and have
>opened the one who could be opened, gone trough every soldering point in
>every relay, cleaned the connectors and so one, no help, still not start.
>
>I understand that the relay can go bad, but since it must work now and then,
>what could be the reason, after I have checked all the soldering points (re
>soldered all point's)
> As you understand I am a newbie when it comes to car, so could you tell me
> if this car has a CPS, and if so where I find it ?
>
this car wont have a CPS.
try look at this link to get some information on the Hall effect sensor.
http://www.brickboard.com/FAQ/700-900/ElectricalIgnition.htm#DoesMyCarHaveaHallorRPMSensor
I know the link migth be broken up, but I don,t know how to post long links,
so you must try to cut and paste, to get it together.
Per Hauge
--
Best Regards
Geir R.Pettersson
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In my Jeep I could turn the ignition On-Off, On-Off, On-Off without starting
the car, then it would start flashing an error message (code) is it the same
thing in this Volvo ? and what is the sequence ?
--
Best Regards
Geir R.Pettersson
grp.a...@heating.no
http://www.arctic-heating.com
"Boris Mohar" <borism_...@sympatico.ca> skrev i melding
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The info you're getting from the brickboard is for LH-Jetronic and you
have K-Jetronic (aka CIS injection). They use different relays. If
your fuel pump relay isn't turning on, then either it's defective or
it's not getting the signal to turn on. This signal is pulsing from the
low voltage side of the ignition.
So if you have no ignition, the fuel pump won't turn on. Usually the
tachometer jumps if there's ignition during cranking. If you have a
test light, clip the lead to the negative battery terminal, and with the
key in the "run" position, the test light should light with the probe on
both sides of the coil. If not, then you have a power supply problem.
If so, while cranking the light should flash on one side of the coil
(the side with the red-white wire) and stay constantly lit on the
other. If this doesn't happen, then you have a problem with the pickup
in the distributor, or there's a problem with the power switching unit
(which you seem to have changed).
--
Mike F.
Thornhill (near Toronto), Ont.
Replace tt with t (twice!) and remove parentheses to email me directly.
(But I check the newsgroup more often than this email address.)
You need 3 things for your car to run.
1. fuel
2. spark at the correct time
3. compression
My guess is you don't have spark. Without spark, the fuel pump relay
won't energize the fuel pumps. The fuel pump relay uses the same signal
the tachometer uses (red-white wire) - without that the fuel pumps stay
off.
So, if you don't have fuel AND spark, just adding one of them (fuel in
your case) isn't going to help.
We had K-Jetronic over here - just in the 240s, and in the US, only up
to 1982. (Canada up to 1984.) Just look for 240 info, in the older
cars. (We had K-Jetronic V6s in both 200 and 700 up to 1986.)
I tested like you described.
I have light on both sides, but while cranking no flashing on the side of
the coil with white wire. The other unchanged as well.
I removed the cap and rotor and cleaned everything, all wires as well.
I noticed some small black plastic pieces as well inside, I guess they come
from the plug below with 3 wires ( Hall sensor)
I think I read somewhere that if it was inside the distributor it is a hall
sensor, even if the house of the sensor is broken, I could not find any
loose wires, I pushed gently to see if any wire was loose, but they where
not.
I will try to check the Hall sensor tomorrow.
I have changed the power switching unit, but could it still be this, or can
we now say it is caused by the Hall sensor ?
P.S I even measured the plug wires, they where all app 6K, and the one to
the coil was about 3K
"Mike F" <"mikef2316()"@allsttream.nett> skrev i melding
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However, I cleaned every thing also the sensor, put it all back together and
to my surprise it started after that, my son have now taken 3-4 trips today,
no problem so far.
I guess I have been lucky, and it will only work for a day or 2, I guess
that the sensor is about to quit, and that I have to start looking for a new
distributor with the sensor mounted, it seems to complex to only change the
sensor, I read that you should be quit skilled to do that, and I don't want
to hammer anything and make it worse.
Do you agree that I now 100% could blame the Hall sensor ?, if so I can
start looking for a new distributor ( find the cheapest)
Thanks for your help, it was when you told me how to measure on the coil,
that the solution came.
"Mike F" <"mikef2316()"@allsttream.nett> skrev i melding
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It's quite possible that the problem was just a dirty connector at the hall
sensor. I've also seen the little wires break off, usually the plug breaks
off the distributor and dangles by wires, I've had to epoxy a few of those.
I would look very closely at both the terminals for corrosion, and the
wire harness from the Hall sensor to where it joins the main harness.
I guess we have to change the Hall sensor (first I try the contacts again)
I wish you all a nice weekend, without any stalling car's
--
Best Regards
Geir R.Pettersson
grp.a...@heating.no
http://www.arctic-heating.com
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