Question about Volvo Cars & Trucks
Engine suddenly stops while I am driving. Checked sensors and relays.
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Posted on Jan 02, 2017
it may be a fuel pump fault. Cutting out and restarting is a classic sign of a failing fuel pump.
Here in the UK the VOlvo 960 is a 3 litre car (may be a different model to the USA version of the 960) and has 2 fuel pumps. One is situated in the tank and lifts the fuel into the pipeline system. The 2nd fuel pump is located underneath the car alongside the fuel filter underneath the passenger side (UK) and gives the fuel a boost to shove it up to the engine.
To check fuel pressure, find the pipe that goes to the injectors ... there usually is a connector where the metal pipe connects to the flexible rubber pipe. Undo the connector and switch the ignition on ... fuel should spray out at high pressure .. .high pressure .. not small squirts and dribbles.
Fuel pumps are damn expensive. It could also be a sensor at fault - like a crankshaft sensor. The cheapest way to get it sorted is to ask a workshop to identify the fault for you (you can do any work required) - they can check the sensors and electrics on their computer. Changing parts one by one to try and cure a fault can work out damn expensive .... get the fault identified for you first. Its worth the money ..
I think there are still photos of UK Volvo 960 fuel pumps on my website at :
Posted on May 17, 2009
SOURCE: volvo s60 idle sensor
if you could get your hands on a scanner to read some live data it would help your plight,there is a cam position sensor when you take of the the plastic head cover at the timing belt end,did you check plugs,it also might help to clean the maf with some contact spray,sounds like plugs
Posted on May 27, 2009
Did you replace the sensor by the thermostat in the engine block or the one under the drivers headlight, There are two, the one next to the thermostat controls the temp gauge in the vehicle. the one under the headlight assembly controls the actual fans and is a electronic module. You have to remove the head light assembly to get to it.
Posted on May 29, 2009
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