Axelshei
Member
- Joined
- November 15, 2009
- Messages
- 21
- Reaction score
- 0
- City, State
- Oslo, Norway
- Year, Model & Trim Level
- 99 Ford Explorer 4.0 SOHC
My 1999 Explorer runs rough at idle when could. The mechanic that looked at the problem thought the fuel pump was the problem. He tested the pump and it only gave around 13-15 psi when running at idle, and he ment it was supposed to give around 30psi. He changed the pump, and it did not help at all.
Does anyone know if the pump maybe is supposed to give just 15 psi at idle? And maybe increase the pressure when higher rpm?
PS: It is the SOHC 4.0 engine.
I hope someone can help me
Does anyone know if the pump maybe is supposed to give just 15 psi at idle? And maybe increase the pressure when higher rpm?
PS: It is the SOHC 4.0 engine.
I hope someone can help me