jakegator
Well-Known Member
- Joined
- August 1, 2012
- Messages
- 124
- Reaction score
- 3
- City, State
- PA, USA
- Year, Model & Trim Level
- 1998 explorer 4dr ohv
Hello, I just finished replacing my heads and manifolds with headers. Got it all back together went to start it and it started right up. Wouldnt idle but thats nothing new (Probably bad IAC). Normally it will idle after a minute or so of holding the gas to about 1K rms. It did eventually idle and I let it run for about 5-10 minutes. I turned it off and went to turn it back on and it wouldnt turn on. All the lights still work and the starter is working. No check engine lights. I looked around on here and saw some people talking about the fuel pump relay acting up so i switched it up, but no change. I let it sit for a about a half hour or so and went to start it again and it fired right up perfectly. Let it idle for a bit, turned it off, turned it back on and nothing. Let it sit again and it starts fine. And repeat.
I double checked the plugs and they are correct,all vacuum lines are where they should be and appear to be in good condition. I have done this exact job on the same engine on my 92 explorer a few years ago and am very confident the heads/LIM /injectors were all put back correctly. The engine is a 4l OHV on a 98 explorer.
My thought is that it could be the fuel pressure regulator? I did spray the inside of it with carb cleaner so maybe that force broke the diaphram? The engine has 240,000 miles on as does all of the parts.
Does anyone have any suggestions on how to fix this issue? I do not have a pressure tester that fits the test port...
I double checked the plugs and they are correct,all vacuum lines are where they should be and appear to be in good condition. I have done this exact job on the same engine on my 92 explorer a few years ago and am very confident the heads/LIM /injectors were all put back correctly. The engine is a 4l OHV on a 98 explorer.
My thought is that it could be the fuel pressure regulator? I did spray the inside of it with carb cleaner so maybe that force broke the diaphram? The engine has 240,000 miles on as does all of the parts.
Does anyone have any suggestions on how to fix this issue? I do not have a pressure tester that fits the test port...