Engine/Transmission (1998.5 - 2002) Intermitent stumble-white smoke?

[GOTSOOT]

I have recently had a problem with my `02 H O only when @normal temps.

start driving and get to where i am going and shut it off everything is fine, but when i get to go and fire her up and start to go @ about 1900rpm there is a stumble and it blows bluish -white? smoke. any idea`s took tst box completely off and it still does it -it has good fuel press 11-12#. thanx

 

[DavidC]

Sounds fuel related, but where to start. Is that pressure before or after filter. When you stop crack open the tank fill cap and listen for a vacuum. Is that pressure at idle?. If at idle you are getting close to needing a new pump. This problem could get alot deeper but do the basics first. New filter etc. . Check the fuel line from tank to engine as there has been posts of the fuel/return lines chafing along the frame. Good luck.



Dave

 

[ThrottleJockey]

Ahh yes, sounds like the ole' APPS stumble...



After you get done with all the chores DavidC gave you, start thinking about your Accelerator Pedal Position Sensor.



There's a temporary fix, do a search on APPS.



Brian