I have not heard of this problem before with respect to vanagons.  In
the case of Je*p Cheroke*s it is common to splice in a check valve from
a BmW repair kit.  I could probably find the part number if you are
interested.

Larry A.
1 Vanagon, 2 J**ps, 1 S**b

don spence wrote:
>> Is it possible to repair/replace the check valve or must you replace
>> the pump?
>>
>
>
>> Though I should point out that the inability to hold pressure doesn't
>> necessarily mean that an injector is leaking.  It might also point to
>> either
>> a bad fuel pressure regulator or faulty check valve in the pump.
>>
>> -------------------------------------------
>
>