F150online Forums

F150online Forums (https://www.f150online.com/forums/)
-   Expedition / Navigator (https://www.f150online.com/forums/expedition-navigator-60/)
-   -   99 EB Exp - runs great cold - jerky when warm (https://www.f150online.com/forums/expedition-navigator/462191-99-eb-exp-runs-great-cold-jerky-when-warm.html)

poolguard 12-15-2011 03:11 PM

99 EB Exp - runs great cold - jerky when warm
 
I hope it is simple to diagnose. When I start, it runs perfectly. Once I get to normal running temp. is when I start to have problems. The engine seems to run a little rougher, and when you press the gas from a idle speed just slightly, it jerks and shutters like a spaceship re-entering the earths atmosphere. Sometimes it takes about 20-30 minutes of driving before this starts to happen. Any idea what it could be and about how expensive to fix?

I have been told it could be at torque converter but I'm not sure if that's accurate.

poolguard 01-02-2012 10:16 AM

Bump

rhdf150 02-08-2012 09:46 AM

Could be a bad coil pack


All times are GMT -4. The time now is 05:14 PM.


© 2024 MH Sub I, LLC dba Internet Brands