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HELP!
My friend has a Volvo 340 GL 1.7 –89. It suffers from the weirdest of malfunctions. I’ve been fixing cars almost ten years now, but I just can’t figure out what’s wrong with this one:
If the car starts, it makes it somewhat poorly. After a drive of twenty minutes or so, it starts running VERY badly. Only a heavy use of choke keeps it going long enough to find a place to stop, then it shuts down. After 15-30 minutes break everything’s just great. It starts and runs the rest of the day like nothing’s wrong. Except the consumption of fuel: 13-15 litres per hundred kilometers, a real bitch concidering the fuel prices in Finland.
The distributor is a brakerless model, so I changed the distributor gap, rotator, ignition wires and plugs. I also treated the carburetor with a repair kit. In the service the car got a new ignition coil and a fuel pump, they also filed level the part that’s between the engine head and the exhaust pipe. Whatever the name of that part is in english. They also replaced the exhaust gasget.
Still, the trouble remains the same. Idle run is really shitty, but according to the experts and their gauges in the service everything is fine with electrics and the carburetor.
So, what to do next? Should I change the ignition control unit or perhaps the condenser? If there is any? Ignition control unit is the last component we have not tampered with, because according to these same experts, the unit either works or the car doesn’t even start. So the unit would not be responsible for the problem.
But who knows? You? If You have had similar problems or have any idea at all for the solution, I’m all ears. I’m puzzled and my friend is getting pissed enough to paint the bugger green and drive it into the sea.
Thanx.
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