My nephew has this vehicle which is stuck at the farm 2 hrs away. I
will go there this weekend and repair it, but I am not familiar with
Volvos.

He said it would stop-go-stop just like it was out of gas, but there
was lots of gas in the tank.

Can someone tell me please:

-where is the fuel filter located?

-is it a mechanical pump or electric one?

-if electric, where is it?

Are there any special tricks or suggestions to troubleshooting and
repairing/replacing these components? He says he bought a new filter
and pump to take with us.

Thanks, Tom

On Fri, 27 Jun 2008 13:01:00 -0500, Happy Trails <nomail@myplace.com>
wrote:

>
>My nephew has this vehicle which is stuck at the farm 2 hrs away. I
>will go there this weekend and repair it, but I am not familiar with
>Volvos.
>
>He said it would stop-go-stop just like it was out of gas, but there
>was lots of gas in the tank.
>
>Can someone tell me please:
>
>-where is the fuel filter located?
>
>-is it a mechanical pump or electric one?
>
>-if electric, where is it?
>
>Are there any special tricks or suggestions to troubleshooting and
>repairing/replacing these components? He says he bought a new filter
>and pump to take with us.
>
>Thanks, Tom

See http://www.matthewsvolvosite.com/volvo_850.php, Repairs and Tips.
(I'd start by checking the fuel pump relay for bad solder joints - a
common problem ->
http://www.matthewsvolvosite.com/cha...?p=31037#31037)

Thanks for the info, Jarkka.

Turns out fuel system seems okay - I have pressure on rail !

But no sparks ???

So I pulled the coil assembly, with the power transistor mounted.

How can I test that to see if it's good?

Are these usually available at a scrap yard?

Is replacing this the likely solution, or am I going to find out it is
a mysterious fault involving sensors and a computer, hahahaha?

==============================



On Mon, 30 Jun 2008 11:53:52 +0300, Jarkka
<jari.hartikainen@LESSSPAMpp.inet.fi> wrote:

>On Fri, 27 Jun 2008 13:01:00 -0500, Happy Trails <nomail@myplace.com>
>wrote:
>
>>
>>My nephew has this vehicle which is stuck at the farm 2 hrs away. I
>>will go there this weekend and repair it, but I am not familiar with
>>Volvos.
>>
>>He said it would stop-go-stop just like it was out of gas, but there
>>was lots of gas in the tank.
>>
>>Can someone tell me please:
>>
>>-where is the fuel filter located?
>>
>>-is it a mechanical pump or electric one?
>>
>>-if electric, where is it?
>>
>>Are there any special tricks or suggestions to troubleshooting and
>>repairing/replacing these components? He says he bought a new filter
>>and pump to take with us.
>>
>>Thanks, Tom
>
>See http://www.matthewsvolvosite.com/volvo_850.php, Repairs and Tips.
>(I'd start by checking the fuel pump relay for bad solder joints - a
>common problem ->
>http://www.matthewsvolvosite.com/cha...?p=31037#31037)

Are you getting any trouble codes on sockets A2 or A6?

http://www.matthewsvolvosite.com/cha...ic.php?t=10758

Jarkka



>
>Thanks for the info, Jarkka.
>
>Turns out fuel system seems okay - I have pressure on rail !
>
>But no sparks ???
>
>So I pulled the coil assembly, with the power transistor mounted.
>
>How can I test that to see if it's good?
>
>Are these usually available at a scrap yard?
>
>Is replacing this the likely solution, or am I going to find out it is
>a mysterious fault involving sensors and a computer, hahahaha?
>
>==============================
>