Question : MY family own two Volvo 240GL (both manual).
My questions are:
1. Both cars have the same rear light problems.
One of the rear lights does not work and the rear
light on one of the cars is new (replaced three
Is it a manufacturing defect? I have seen a number
of Volvos from this particular model having the same
I had sent it to a workshop but the problem occurs
again after several days.
2. One of the Volvos has a Nissan 1.6L carburetor.
a) What can be done to increase the car power?
b) Why does the car engine continue to run for
one or two seconds after it has been switched off? What can be done to stop this?
c) Sometimes the engine rpm drops really low (like
it's going to die) when braking to stop. This usually
happens after the car has been traveling at high
3. The other Volvo is in its original condition. The
problem with this car is that it would shake and jerk
in stop and go traffic, such as in jams, as if you are
using the third or fourth gear to move from a stand-
1. If the lights do not work, then you need to check
carefully if there is sufficient earthing of the lamp units
or if all connections are tight.
It may also be a harness problem and in that case, you
will need to trace the wire from one end to the other to
find out if there are any breaks or bad connectors.
2. If you are using a carburetor from a 1.6-litre car
with your 2.4-litre engine, of course you will have loss of
power as the carburetor cannot flow sufficient air and
so you will have less fuel mixture.
You will need to find a carburetor from a 2.2 to 2.4-
litre engine to give you back the performance.
3. Most Japanese carburetors have what is called an
'anti-dieseling' valve that shuts off the fuel flow in the
carburetor when the ignition is turned off.
I suspect that when you installed the Nissan carburetor, the anti-dieseling valve was faulty and is not shutting
off and the excess fuel flow is causing the 'running-on'.
4. This shaking and jerking is more likely a carburetion
problem and the best is to pull out the carb and get it
The unfortunate thing is that old carbs tend to have
quite a lot of internal corrosion resulting in fuel passages
being blocked, etc. and causing erratic running.
If such is the case and even after overhauling the engine is still behaving the same, then the best is to replace