Cranks for a long time before starting, pump or regulator?

[MTchevy1]

My 98 GTP will crank for at least 10 seconds before starting. If I turn the key to prime the pump a few times, it takes less cranking to start. How can I determine if it's the regulator not holding pressure or the pump getting weak? It runs fine and has never died or failed to start.

Also, is there a stock replacement pump that does not include the whole module with it? I'd really prefer not to replace the whole sender assembly when it's not bad.

[Fivefingerdeathpunch]

pull the vac line off the furl pressure regulator, if fuel comes out when you do that, its bad.

[MTchevy1]

Will give it a try. Any idea if I can get a stock replacement pump only?

[FordMan77]

Maybe on Rock Auto you can.

Also, when was the last time the fuel filter was changed?

[BillBoost37]

TREPerformance.com $80 pumps..

[GTP in RTP]

pull the vac line off the furl pressure regulator, if fuel comes out when you do that, its bad.

I assume you mean Key on Engine Off for this fpr test, pulling vacuum line?

[BillBoost37]

Key position doesn't matter. If there's fuel in the line, the reguator is bad.