2016 m6000 hard starting

[Turblue]

I bought my daughter a 2016 m6000. It’s got around 300miles on it to basically new. I noticed when you first start it up it hesitates and revs up for a second. Now it’s stumbles to start then after a few seconds runs fine. Once it started and died. Would there be a updated fuel map? Runs fine after it’s warmed up.

Seems like it’s getting progressively worse.

It’s the ctec 600.

 

[geofharries]

Have you checked or replaced the spark plugs? That can make a huge difference.

 

[Turblue]

Yeah I was planning changing them.

 

[Old & slow]

I would added some Seafoam (can't hurt) die electric grease on as many connections you can find . Make sure you have good fuel from a reliable source. You can also check the idle speed controller make sure the hoses are connected good, no obstruction, or collapsed hose etc.

 

[Turblue]

Has anyone had issues with the intake sensor causing hard starts? Plugs never made a difference.

 

[IDspud]

Yes.
Had bad intake sensor.
Another thing we’ve dealt with specific to 6000’s is girls coming in hot to catch group, grab brakes and hitting kill switch.
Very difficult restart from loading up.
Figured out by coaching them to pull in and idle a few seconds the motor would clear out and restart first pull.

 

[spoon]

Bad coolant temp sensors can also cause hot and cold start issues.

 

[Turblue]

I started it a couple times this summer in the shop. Starts but stumbles at the beginning. Let it warm up good and shut it off.