Long crank after lift pump install

[C.bowles2]

I installed a fass 150 the the other night and all went well but now if the truck sits a little while it abnormally cranks longer to fire up. Any ideas? If anything it should be more instant I would think. Is this normal? Btw fass makes a great install for this. Super nice for and finish. Thanks y'all


05 Chevy LLY
-Extended cab short bed 4x4
-Sinister EGR delete kit
-S&B turbo mouth piece
-Sinister intake tube
-AEM CAI
-PVC reroute
-4inch straight pipe
-Edge CTS juice with attitude plus hot tuning
-PPE race plug and ported FR fitting
-33's

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[andy-stevenson]

Are you hopping in the truck and trying to fire it up right away or are you turning the key to accessory and letting the pump run for a couple seconds?

 

[C.bowles2]

Well when it did it one time I turned key right away then back to run let it build up and it still cranked a while


05 Chevy LLY
-Extended cab short bed 4x4
-Sinister EGR delete kit
-S&B turbo mouth piece
-Sinister intake tube
-AEM CAI
-PVC reroute
-4inch straight pipe
-Edge CTS juice with attitude plus hot tuning
-PPE race plug and ported FR fitting
-33's

Sent from my iPhone using Tapatalk

 

[andy-stevenson]

Have you adjusted the pressure at all?

 

[C.bowles2]

I just did last night by stretching out the spring. Bumped it up to about 15 psi. Before it was at 6 psi. And this morning it fired right up maybe that was the problem


05 Chevy LLY
-Extended cab short bed 4x4
-Sinister EGR delete kit
-S&B turbo mouth piece
-Sinister intake tube
-AEM CAI
-PVC reroute
-4inch straight pipe
-Edge CTS juice with attitude plus hot tuning
-PPE race plug and ported FR fitting
-33's

Sent from my iPhone using Tapatalk

 

[LB719]

Is it possibly sucking air somewhere? Mine was at the filter and it would crank for a few seconds before it fired, I re-lubed the seal and all was well.

 

[Burn Down]

My guess is it still had air in the system from install... The filters can trap air and take a little time bleed out on there own. 6 psi was more than enough to start, 15 might be getting close to causing a lope...