nameskreen
Well-Known Member
- Joined
- April 15, 2015
- Messages
- 108
- Reaction score
- 17
- Year, Model & Trim Level
- 98 Ford Explorer Limited
I have a 97 Mountaineer 5.0 with 210k miles. It has a slight rough idle but it runs great no hesitation or misfires, no check engine light. When it's warmed up, and I try to restart it, it cranks longer than normal. The coolant sensor is ok because my scanner reads 195 degrees when it's warmed up. The fuel filter, air filter and plugs and wires are new. I cleaned the EGR, MAF sensor and IAC. I poked around with a propane tank for vacuum leaks, my vacuum gauge reads normal at 19Hz. My fuel pressure gauge reads 31 lbs but drops rapidly to 0 after shut off(with in 30 seconds) I pulled the vacuum line off of the regulator and the fuel pressure went up to 40 lbs and no fuel spilled out of the vacuum line. I'm leaning toward a leaky injector but I'm not sure how to figure out if that is my problem. Any help is appreciated.