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1990 760 Turbo wagon dies at random!
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CarGuru > Volvo > 1990 760 Turbo wagon dies at random! 16 April 2005 03:46:59

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1990 760 Turbo wagon dies at random!

Stroller 13 April 2005 01:08:51
 This is going to sound like a repeat of an earlier situation with
another car.

We have a 1990 760 Turbo (intercooler) wagon with 147k miles. The
vehicle will die at random, stop lights, freeway, city streets, etc.
It will usually start up once I coast to a stop, or it will take a
minute or so before it starts. It can go months before it dies, and
then it may die every day for a week or so.

I’ve had 3 different mechanics try to solve the mystery. So far, we
have replaced:

System relay
Air Mass Meter
Spark Plugs
Cap & Rotor
Plug Wires
Speed sensor
Power Amp Ignition
TB Gasket (during cleaning I’m assuming)

No luck with fixing the problem so far. Want to take a crack at it?

I just checked the fault codes and they read 2-3-2 & 3-1-1.

Thanks for the help!

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Peter K L Milnes 13 April 2005 02:48:10 permanent link ]
 2-3-2 suggests fuel supply anomaly and 3-1-1 suggests Speedometer signal
absent. It is possibly curable by thoroughly cleaning the inlet tract (from
filter to manifold including Idle Air Control Valve). This is a two yearly
maintenance job. Also check all connections to and from ECU and ICU plus all
sensors that feed to the ECU/ICU.

Cheers, Peter.

"Stroller" <UseLinkToEmail@Aut­oForumz.com> wrote in message
news:1_525413_1235e­e0581bf8609674e130ec­c4086b3@autoforumz.c­om...> This is going to sound like a repeat of an earlier situation with> another car.>
We have a 1990 760 Turbo (intercooler) wagon with 147k miles. The> vehicle will die at random, stop lights, freeway, city streets, etc.> It will usually start up once I coast to a stop, or it will take a> minute or so before it starts. It can go months before it dies, and> then it may die every day for a week or so.>
I’ve had 3 different mechanics try to solve the mystery. So far, we> have replaced:>
System relay> Air Mass Meter> Spark Plugs> Cap & Rotor> Plug Wires> Speed sensor> Power Amp Ignition> TB Gasket (during cleaning I’m assuming)>
No luck with fixing the problem so far. Want to take a crack at it?>
I just checked the fault codes and they read 2-3-2 & 3-1-1.>
Thanks for the help!>
-- > Posted using the http://www.autoforu­mz.com interface, at author's request> Articles individually checked for conformance to usenet standards> Topic URL: > http://www.autoforu­mz.com/Volvo-1990-76­0-Turbo-wagon-dies-r­andom-ftopict111897.­html> Visit Topic URL to contact author (reg. req'd). Report abuse: > http://www.autoforu­mz.com/eform.php?p=5­25413


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Brendan Griffin 13 April 2005 11:58:20 permanent link ]
 My volvo had a faulty car alarm that caused the car to cut ou when you were
driving it.



Add comment
Michael Pardee 13 April 2005 16:43:00 permanent link ]
 Wild guess, based on the lack of pattern and the random amount of time
before it restarts - crank angle sensor (or whatever the Hall effect device
is called in the 1990 765T). It is infamous for doing that and being the
very devil to catch in the act. One clue - if the tach kicks when you try to
restart but the engine doesn't fire, it isn't the Hall effect dealie or
anything in the ignition. Has the fuel pump relay been resoldered or
replaced yet?

Mike

"Stroller" <UseLinkToEmail@Aut­oForumz.com> wrote in message
news:1_525413_1235e­e0581bf8609674e130ec­c4086b3@autoforumz.c­om...> This is going to sound like a repeat of an earlier situation with> another car.>
We have a 1990 760 Turbo (intercooler) wagon with 147k miles. The> vehicle will die at random, stop lights, freeway, city streets, etc.> It will usually start up once I coast to a stop, or it will take a> minute or so before it starts. It can go months before it dies, and> then it may die every day for a week or so.>
I've had 3 different mechanics try to solve the mystery. So far, we> have replaced:>
System relay> Air Mass Meter> Spark Plugs> Cap & Rotor> Plug Wires> Speed sensor> Power Amp Ignition> TB Gasket (during cleaning I'm assuming)>
No luck with fixing the problem so far. Want to take a crack at it?>
I just checked the fault codes and they read 2-3-2 & 3-1-1.>
Thanks for the help!>
-- > Posted using the http://www.autoforu­mz.com interface, at author's request> Articles individually checked for conformance to usenet standards> Topic URL: > http://www.autoforu­mz.com/Volvo-1990-76­0-Turbo-wagon-dies-r­andom-ftopict111897.­html> Visit Topic URL to contact author (reg. req'd). Report abuse: > http://www.autoforu­mz.com/eform.php?p=5­25413


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Dale James 13 April 2005 18:34:56 permanent link ]
 I had a hot-start/run problem in my 1989 760 turbo that proved to be the
"charge air overpressure switch". Basically, it's a vacuum switch that cuts
power to the fuel pumps if your turbo is blowing too much boost.

It's the first powered link in the fuel system after the ignition switch,
and if it's faulty it's a real bugger to diagnose. I just bypassed it with
two alligator clips and a scrap of wire, and the car starts and runs fine
now. IPD doesn't sell it, and my local Volvo dealer was no help in trying
to order one.

The Haynes manual (which only covers up through '88, I believe) had the part
living up under the dash around the brake pedal cluster, but by my 1989, the
Volvo engineers had moved it to a strap on the coolant overflow tank under
the hood. I suspect it was the dramatic heat cycles that killed it.

Best of luck!
--Dale


"Michael Pardee" <michaeltnull@cyber­trails.com> wrote in message
news:AtWdncHzBudEjs­DfRVn-hA@sedona.net.­..> Wild guess, based on the lack of pattern and the random amount of time> before it restarts - crank angle sensor (or whatever the Hall effect
device> is called in the 1990 765T). It is infamous for doing that and being the> very devil to catch in the act. One clue - if the tach kicks when you try
restart but the engine doesn't fire, it isn't the Hall effect dealie or> anything in the ignition. Has the fuel pump relay been resoldered or> replaced yet?>
Mike>
"Stroller" <UseLinkToEmail@Aut­oForumz.com> wrote in message> news:1_525413_1235e­e0581bf8609674e130ec­c4086b3@autoforumz.c­om...> > This is going to sound like a repeat of an earlier situation with> > another car.> >
We have a 1990 760 Turbo (intercooler) wagon with 147k miles. The> > vehicle will die at random, stop lights, freeway, city streets, etc.> > It will usually start up once I coast to a stop, or it will take a> > minute or so before it starts. It can go months before it dies, and> > then it may die every day for a week or so.> >
I've had 3 different mechanics try to solve the mystery. So far, we> > have replaced:> >
System relay> > Air Mass Meter> > Spark Plugs> > Cap & Rotor> > Plug Wires> > Speed sensor> > Power Amp Ignition> > TB Gasket (during cleaning I'm assuming)> >
No luck with fixing the problem so far. Want to take a crack at it?> >
I just checked the fault codes and they read 2-3-2 & 3-1-1.> >
Thanks for the help!> >
-- > > Posted using the http://www.autoforu­mz.com interface, at author's
request> > Articles individually checked for conformance to usenet standards> > Topic URL:> >
http://www.autoforu­mz.com/Volvo-1990-76­0-Turbo-wagon-dies-r­andom-ftopict111897.­html> > Visit Topic URL to contact author (reg. req'd). Report abuse:> > http://www.autoforu­mz.com/eform.php?p=5­25413>


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Stroller 13 April 2005 21:08:36 permanent link ]
 "Brendan Griffin" wrote: > My volvo had a faulty car alarm that caused the car to cut ou > when you were > driving it.

Thanks for the input! No alarm system is the Volvo, so I can rule
that out.

--
Posted using the http://www.autoforu­mz.com interface, at author's request
Articles individually checked for conformance to usenet standards
Topic URL: http://www.autoforu­mz.com/Volvo-1990-76­0-Turbo-wagon-dies-r­andom-ftopict111897.­html
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Add comment
Stroller 13 April 2005 21:08:46 permanent link ]
 "Stroller" wrote: > This is going to sound like a repeat of an earlier situation > with another car. >
We have a 1990 760 Turbo (intercooler) wagon with 147k miles. > The vehicle will die at random, stop lights, freeway, city > streets, etc. It will usually start up once I coast to a > stop, or it will take a minute or so before it starts. It can > go months before it dies, and then it may die every day for a > week or so. >
I've had 3 different mechanics try to solve the mystery. So > far, we have replaced: >
System relay > Air Mass Meter > Spark Plugs > Cap & Rotor > Plug Wires > Speed sensor > Power Amp Ignition > TB Gasket (during cleaning I'm assuming) >
No luck with fixing the problem so far. Want to take a crack > at it? >
I just checked the fault codes and they read 2-3-2 & 3-1-1. >
Thanks for the help!

I’ll try cleaning the inlet tract this weekend!

As for the fuel pump relay, I don’t think that has ever been changed.
Where is this located?

The Volvo just quit on me this morning at a stop light. Just died.
It did start on the second try. Total time that elapsed was about 20
seconds. No check engine fault this time. I had been on the road for
about 35 minutes when it happened.
Add comment
Peter K L Milnes 14 April 2005 03:05:47 permanent link ]
 The fuel pump relay on your 760 is behind the passenger side kick panel on
the side of the Centre Console. It sits on the relay panel which is mounted
vertically. The Fuel pump relay is The one on the top row between the top of
the double relay (headlights) and the foremost relay (Central Locking
system).

Cheers, Peter.

"Stroller" <DoNotEmail@AutoFor­umz.com> wrote in message
news:1_526040_ea18d­916dba07652316392e4b­8083da2@autoforumz.c­om...> "Stroller" wrote:> > This is going to sound like a repeat of an earlier situation> > with another car.> >
We have a 1990 760 Turbo (intercooler) wagon with 147k miles.> > The vehicle will die at random, stop lights, freeway, city> > streets, etc. It will usually start up once I coast to a> > stop, or it will take a minute or so before it starts. It can> > go months before it dies, and then it may die every day for a> > week or so.> >
I've had 3 different mechanics try to solve the mystery. So> > far, we have replaced:> >
System relay> > Air Mass Meter> > Spark Plugs> > Cap & Rotor> > Plug Wires> > Speed sensor> > Power Amp Ignition> > TB Gasket (during cleaning I'm assuming)> >
No luck with fixing the problem so far. Want to take a crack> > at it?> >
I just checked the fault codes and they read 2-3-2 & 3-1-1.> >
Thanks for the help!>
I’ll try cleaning the inlet tract this weekend!>
As for the fuel pump relay, I don’t think that has ever been changed.> Where is this located?>
The Volvo just quit on me this morning at a stop light. Just died.> It did start on the second try. Total time that elapsed was about 20> seconds. No check engine fault this time. I had been on the road for> about 35 minutes when it happened.


Add comment
Michael Pardee 14 April 2005 03:38:29 permanent link ]
 "Stroller" <DoNotEmail@AutoFor­umz.com> wrote in message
news:1_526040_ea18d­916dba07652316392e4b­8083da2@autoforumz.c­om...> As for the fuel pump relay, I don't think that has ever been changed.> Where is this located?>
If it is the same location as my '85, it is in the center console. Remove
the ash tray and ash tray mount, exposing the fuses. The relay is on the far
left side (as you sit in the car); a rectangular white plug-in module in the
second row back (toward the nose of the car). They are notorious for
intermittent solder connections in the circuit board inside.

Mike


Add comment
Peter K L Milnes 15 April 2005 02:24:19 permanent link ]
 Sorry Mike but this is a 1990 (post facelift) model. The fuses are in the
end of the dashboard and cannot be accessed if the driver's door is closed
and the relays have their own special place as I have already described to
the gentleman.

Cheers, Peter.

"Michael Pardee" <michaeltnull@cyber­trails.com> wrote in message
news:p­YCdndRHdf3mMM­DfRVn-rQ@sedona.net.­..> "Stroller" <DoNotEmail@AutoFor­umz.com> wrote in message > news:1_526040_ea18d­916dba07652316392e4b­8083da2@autoforumz.c­om...>> As for the fuel pump relay, I don't think that has ever been changed.>> Where is this located?>>
If it is the same location as my '85, it is in the center console. Remove > the ash tray and ash tray mount, exposing the fuses. The relay is on the > far left side (as you sit in the car); a rectangular white plug-in module > in the second row back (toward the nose of the car). They are notorious > for intermittent solder connections in the circuit board inside.>
Mike>


Add comment
Michael Pardee 15 April 2005 03:11:01 permanent link ]
 
"Peter K L Milnes" <Peter.K.L.Milnes@b­tinternet.com> wrote in message
news:d3mqij$8sr$1@s­parta.btinternet.com­...> Sorry Mike but this is a 1990 (post facelift) model. The fuses are in the > end of the dashboard and cannot be accessed if the driver's door is closed > and the relays have their own special place as I have already described to > the gentleman.>
Cheers, Peter.>
Thanks for the info, Peter! Next time I'll know (if I don't forget between
now and then.)

Mike


Add comment
Stroller 15 April 2005 04:42:02 permanent link ]
 "michaeltnull" wrote: > "Peter K L Milnes" <Peter.K.L.Milnes@b­tinternet.com> wrote in > message > news:d3mqij$8sr$1@s­parta.btinternet.com­... > > Sorry Mike but this is a 1990 (post facelift) model. The > fuses are in the > > end of the dashboard and cannot be accessed if the driver's > door is closed > > and the relays have their own special place as I have > already described to > > the gentleman. > >
Cheers, Peter. > >
Thanks for the info, Peter! Next time I'll know (if I don't > forget between > now and then.) >
Mike

Thanks for the help!

I replaced the Fuel Pump Relay this evening. When I pulled the
plastic covering off the old one, I did notice a small crack in one
solder joint. We shall see if that fixes the problem.

Stroller (aka Brian)

--
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Articles individually checked for conformance to usenet standards
Topic URL: http://www.autoforu­mz.com/Volvo-1990-76­0-Turbo-wagon-dies-r­andom-ftopict111897.­html
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Boris Mohar 15 April 2005 04:50:01 permanent link ]
 On 14 Apr 2005 20:42:02 -0400, Stroller <UseLinkToEmail@Aut­oForumz.com>
wrote:
"michaeltnull" wrote:> > "Peter K L Milnes" <Peter.K.L.Milnes@b­tinternet.com> wrote in> > message > > news:d3mqij$8sr$1@s­parta.btinternet.com­...> > > Sorry Mike but this is a 1990 (post facelift) model. The> > fuses are in the > > > end of the dashboard and cannot be accessed if the driver's> > door is closed > > > and the relays have their own special place as I have> > already described to > > > the gentleman.> > >
Cheers, Peter.> > >
Thanks for the info, Peter! Next time I'll know (if I don't> > forget between > > now and then.)> >
Mike>
Thanks for the help!>
I replaced the Fuel Pump Relay this evening. When I pulled the>plastic covering off the old one, I did notice a small crack in one>solder joint. We shall see if that fixes the problem.>
Stroller (aka Brian)

Something like this?

http://www.viatrack­.ca/Misc/badcon2.jpg­



Regards,

Boris Mohar

Got Knock? - see:
Viatrack Printed Circuit Designs (among other things) http://www.viatrack­.ca
Add comment
John Robertson 15 April 2005 14:18:45 permanent link ]
 DOES SILVER SOLDER HELP ?
"Peter K L Milnes" <Peter.K.L.Milnes@b­tinternet.com> wrote in message
news:d3mqij$8sr$1@s­parta.btinternet.com­...> Sorry Mike but this is a 1990 (post facelift) model. The fuses are in the > end of the dashboard and cannot be accessed if the driver's door is closed > and the relays have their own special place as I have already described to > the gentleman.>
Cheers, Peter.>
"Michael Pardee" <michaeltnull@cyber­trails.com> wrote in message > news:p­YCdndRHdf3mMM­DfRVn-rQ@sedona.net.­..>> "Stroller" <DoNotEmail@AutoFor­umz.com> wrote in message >> news:1_526040_ea18d­916dba07652316392e4b­8083da2@autoforumz.c­om...>>> As for the fuel pump relay, I don't think that has ever been changed.>>> Where is this located?>>>
If it is the same location as my '85, it is in the center console. Remove >> the ash tray and ash tray mount, exposing the fuses. The relay is on the >> far left side (as you sit in the car); a rectangular white plug-in module >> in the second row back (toward the nose of the car). They are notorious >> for intermittent solder connections in the circuit board inside.>>
Mike>>


Add comment
Peter K L Milnes 16 April 2005 03:46:59 permanent link ]
 Sorry John but it doesn't as it is harder than electricians solder and is
more affected by vibration.

Cheers, Peter.

"John Robertson" <johnnr@optusnet.co­m.au> wrote in message
news:425f950d$0$336­7$afc38c87@news.optu­snet.com.au...> DOES SILVER SOLDER HELP ?> "Peter K L Milnes" <Peter.K.L.Milnes@b­tinternet.com> wrote in message > news:d3mqij$8sr$1@s­parta.btinternet.com­...>> Sorry Mike but this is a 1990 (post facelift) model. The fuses are in the >> end of the dashboard and cannot be accessed if the driver's door is >> closed and the relays have their own special place as I have already >> described to the gentleman.>>
Cheers, Peter.>>
"Michael Pardee" <michaeltnull@cyber­trails.com> wrote in message >> news:p­YCdndRHdf3mMM­DfRVn-rQ@sedona.net.­..>>> "Stroller" <DoNotEmail@AutoFor­umz.com> wrote in message >>> news:1_526040_ea18d­916dba07652316392e4b­8083da2@autoforumz.c­om...>>>> As for the fuel pump relay, I don't think that has ever been changed.>>>> Where is this located?>>>>
If it is the same location as my '85, it is in the center console. >>> Remove the ash tray and ash tray mount, exposing the fuses. The relay is >>> on the far left side (as you sit in the car); a rectangular white >>> plug-in module in the second row back (toward the nose of the car). They >>> are notorious for intermittent solder connections in the circuit board >>> inside.>>>
Mike>>>


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CarGuru > Volvo > 1990 760 Turbo wagon dies at random! 16 April 2005 03:46:59

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