89 Volvo no spark or gas

  • Thread starter Thread starter jdboy
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jdboy

I have a 1989 740 GLe volvo. A while ago my father had been looking inside
the engine compartment and had seen that the PCV valve had a broken vacume
hose piece on it which we recently fixed. He had also seen a weird little
computer gadget on the drivers side under the hood that looks like a test.
He had taken the top clip off of it to see what it was and after that it
has not been able to start since. We had asked the volve dealer what that
thing was but he said he'd have to take a look at at and that he didn't
know what it could be. It isn't in the volvo repair manual that we have
either.It says volvo right on it so i assume it is a volvo part but i
didn't think thats what it was. I have been doin several checks on it
since that happened and i pulled the spark plugs to see if it was gettin
spark and it was at first. Then i checked to see if it was getting gas
from the injectors and then they weren't workin so i assumed that was the
problem. I heard that sometime the injector relays come loose from time to
time so i messed with that a little and then i rechecked them. I got
excited because they were working after that. As i went to start the car
it still would not start. I went back to check the spark again, and now i
am not gettin any spark and not sure if when reinstallin the injectors if
i am gettin gas from the injectors either cranking it over seeing that i
was not gettin any gas shooting from the #1 cylinder. I am very clueless
at this point as what could be the problem. I have checked all the fuses
and all of them seem to be ok at this time. The relays i have not checked
again. I would like to have a volvo dealer do a diagnostic on the vehicle
but as i am about an hour away from the nearest dealer and no one in town
does diagnostics on volvos I am kind of in a bind because the cost of
towing it would be great. I would greatly aprreciate any input and thank
you very much for your time.
 
jdboy said:
I have a 1989 740 GLe volvo. A while ago my father had been looking inside
the engine compartment and had seen that the PCV valve had a broken vacume
hose piece on it which we recently fixed. He had also seen a weird little
computer gadget on the drivers side under the hood that looks like a test.
He had taken the top clip off of it to see what it was and after that it
has not been able to start since.
Thre are some eyars of VOlvos that had faulty engine wiring harnesses.
Do a google as there is a website that deals specifically with this
problem.

We had asked the volve dealer what that
thing was but he said he'd have to take a look at at and that he didn't
know what it could be.
The computer test point maybe?

It isn't in the volvo repair manual that we have
either.It says volvo right on it so i assume it is a volvo part but i
didn't think thats what it was. I have been doin several checks on it
since that happened and i pulled the spark plugs to see if it was gettin
spark and it was at first.
If the car has electronic ignition and you allowed the thing to fire
with a spark plug not being grounded you could have damaged the
electronic ignition module. SOme are so sensiive that even turnign the
motor over by hand with the ignition on and a spark plug wire
disconnected can blow the module.
__ __
Randy & \ \/ /alerie's
\__/olvo
'93 960 Estate
 
This will sound crazy, but we had the exact same problem - total
headache. We'd mess with something, think we had the problem solved,
the car would work and then the next day it would not start. It would
always turnover, but not always start. We broke down at the beach
(after we thought we had the car fixed) and took it to a mechanic I
knew when I used to live out there. We tried and tested everything.
He even had a spare volvo we were swithching parts off of. Finally,
he sprayed just a little started fluid in the intake for the mass
airflow sensor (a complete no no, but had no choice because we
couldn't afford to tow it all the way home) and can you beleive - the
car's run great ever since.

Michelle
 

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