DAN47
New Member
- Joined
- November 24, 2017
- Messages
- 2
- Reaction score
- 0
- Location
- Ephrata, PA
- City, State
- Ephrata, PA
- Year, Model & Trim Level
- 04 XLS 4.0 SOHC
Sorry if there is already a post on this, but I am having a problem that I think may be vacuum related. I have a rather rough idle in my 04 EX 4.0 MFI SOHC. It is not horrible just a rough "shake" now and again. There is also some hesitation between 1K - 2K RPM. My service engine light just came on the other day as well. I have changed the plus, wires, coil block, PCV, oil pressure sensor, added K & N air filter a week ago, all of which were probably also bad. Now I plan to take off the upped intake and clean it, replace the o-rings and check all hoses for any leaks. Anything else I should be looking at? Fuel filter maybe? I know it is due for an oil change and that I am doing tomorrow as well...
