Engine stumble

[Gordon Tucker]

I was warming up my 2005 Trac and discovered that when i reved it up to 3000 rpm while in park the engine started to stumble over itself. Is this normal?? I also get a very slight thump in the powertrain approximetly every 45 sec to a minute when stopped at a light with the Transmission in drive and my foot on the brake.

 

[Makin Trax]

there is a rev limit while in park it will only go to 3000 rpm and will stumble to keep your engine from getting damaged and far as the tranny thump.... my 02 doesnt do anything like that so i'm sorry i can't help with that. :unsure:

 

[Todd Z]

Mine does it, Most of the ST's once you modify them the characteristics of the ST changes, I noticed that slight stumble on most..



Todd Z