K in NC wrote:
>
> thanks for all the info so far -
> in checking the haynes manual, they suggest - listen for sound at
> pump with ignition key on.
> it was doing this before - but has since stopped (battery ok at 12V) -
> they say
> " if no sound...check prime circuit with test light and turn ignition
> key ON"
> Question 1- do they mean KOEO or crank
Key on. When switching the key from off to on, the computer turns on the
fuel pump for about 3 seconds to prime the fuel injection system. Since
you aren't cranking the engine at this point the fuel pump should be
easy to hear.
> Question 2 - how do you remove a relay from fuse box - there seems to
> be 2 small slits at the bottom of the relay (one on each side) - do
> these get depressed to pull relay out ?
> does the relay just pull out with brute stregth?
Not positive on that one, but they are usually just push in and should
pull out with modest force and a little wiggling.
> Thanks in advance for any info
> We have checked the vacuum lines visually - no apparent problems there
> - but have not checked them beyond visually.
If the fuel pump was screaming and now it isn't, will the truck even
start and idle now? If not then you've found your problem. Replacing the
in tank fuel pump is DIYable, but it isn't fun (I've done it twice on my
'97).
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