Longer start times after replacing starter

[oakback]

My starter failed. Prior to failing, my engine would typically fire to life after engaging the starter for maybe half a second, to perhaps a full second.

I replaced the starter, and as part of the process replaced various gaskets, knock sensors, and coolant sensor (not sure if at all related). Now it can take 2-3 full seconds (and sometimes longer) of cranking to start the engine. It doesn't sound like much in writing, but it feels much longer when it's happening. The new starter is definitely working well, it's spinning the engine quickly and confidently, with no odd sounds. Also it's not nearly cold enough here in Florida for that to make a difference.

What might cause the engine to take much longer to start? Should I just ignore it and not worry about it?

 

[tbisaacs]

Did you check obvious stuff like batteries and terminals? No start issues are trip Enders so no wouldn’t ignore.

 

[oakback]

Did you check obvious stuff like batteries and terminals? No start issues are trip Enders so no wouldn’t ignore.

The battery is 6 months old, and a new tie-down bracket has ensured that the cables have stayed tight (I had a loosening issue in the past). The starter is quick and strong, and volt meter hasn't looked out of place.

 

[2001LC]

Long crank to start is most commonly, excessive fuel injector leak down. (start-up fuel starvation)
It's likely, something done or not done during service, caused the issue.

 

[Lazarus556]

@oakback did you ever figure this out? I recently replaced my starter and the first couple of times starting it afterwards it fired right up very strong but not its taking a while before doing so. Battery is fairly new and it had used to start up fairly quickly before the starter conked out on me.

 

[oakback]

Nope. I've just been dealing with it. Eventually I figured I'd change the fuel pump or pressure regulator or something, but it still starts so I just deal.

 

[Lazarus556]

Nope. I've just been dealing with it. Eventually I figured I'd change the fuel pump or pressure regulator or something, but it still starts so I just deal.

Ah gotcha. I'm trying to figure my issue out and it looks like it could be fuel pump (I changed my fuel filter not terribly long along) of EFI fuse maybe? Do you know if theres a way to test the pump and pressure regulator?

 

[2001LC]

First place to look, when long crank to start. Especially if longer crank, the long it's parked. Fuel injector leak down.

 

[scubadoober]

First place to look, when long crank to start. Especially if longer crank, the long it's parked. Fuel injector leak down.

Easy test for fuel pressure leak down is to start the truck let it run for 10-20 seconds for the fuel to circulate. Turn off the engine, and restart immediately. Did the cycle time decrease? You have fuel pressure leak down. No change in starting time? Start looking at power and ground cables.