1993 Volvo 850 Consistent Starting Issue

alexk243 · Post by **alexk243** » 18 Mar 2014, 21:19

So my Volvo 850 has had its share of problems, but this one seems consistent.

When the vehicle is being started (warm or cold) it cranks for a very long time and sometimes does/doesnt start, but regardless of how long you crank if you release the starter and then turn the key again it will start right up.

Thoughts?

Post by **xHeart** » 20 Mar 2014, 05:47

Robert's youtube video covers start issue very well.
Search the forum.

Post by **misha** » 20 Mar 2014, 20:35

alexk243 wrote:...When the vehicle is being started (warm or cold) it cranks for a very long time and sometimes does/doesnt start, but regardless of how long you crank if you release the starter and then turn the key again it will start right up....

Bad fuel pump check valve.

Try this....before you start the engine,prime the fuel pump 3-4 times before you start the engine.Priming fuel pump is like this...turn the key in ignition II,wait 2 seconds,go back to ignition I and immediatelly go back to ignition II.Repeat this 3-4 times and 3rd or 4th time start the car.It will start right up.

Bad news is that fuel pump check valve is integrated in the fuel pump itself.You can add auxilliary one if you want.

alexk243 · Post by **alexk243** » 25 Mar 2014, 16:00

Yeah, the priming thing seems to work. So what do I need to do to fix this issue? Fuel pump replace? is there any cheaper options now?

Post by **Ozark Lee** » 25 Mar 2014, 16:50

You can add a check valve to the fuel line back by the fuel filter but you will need to cut the fuel line in half to do it. Even replacing the fuel pump insert won't fix your problem, the check valve is integrated into the plastic fuel pump housing rather than being on the pump itself.

...Lee

alexk243 · Post by **alexk243** » 31 Mar 2014, 23:21

Is this something that will leave me stranded? (worth replacing the fuel pump?)

Post by **misha** » 31 Mar 2014, 23:45

Nope,as long as fuel pump is running.