I changed out the radiator and alternator on my 1998 Lincoln Continental with 220k on it, and now I have no pressure at the fuel rail. I see lots of posts of people with the same issue and replacing the pump did not solve the problem. HELP!!
Lincoln Q&AAsk Your Question
1998 Lincoln Continental Question: Fix for NO PRESSURE AT FUEL RAIL???
Answer #1pushrod October 23, 2013, 18:30Master
Have you checked the inertia or (fuel pump cut off) switch? If not see owners manual. Did you have the battery disconnected while changing out the alternator?
ReplyLanman11, October 23, 2013, 19:07Rookie
Yes. It does not appear the inertia switch tripped. I wish it were that simple. The batter was disconnected when the alternator was replaced. It stayed off while I replaced the radiator. I have a P0192 code (fuel rail pressure sensor input low) and a P0113 Air Intake Temperature Sensor Input High (may have been due to having the air intake off to put fuel in the throttle body to get it started). The Check Engine light goes off during cranking and does not come on after cranking for 8-10 seconds. I was wondering if the crank shaft sensor might be messed up with oil and metal shavings. When there is no signal from that sensor it shuts off the fuel pump too. I am hoping to find a simpler and cheaper explanation than replacing the fuel pump module.
Replypushrod, October 23, 2013, 19:28Master
Hook up a fuel pressure test gauge and see just how much pressure it has! IF no pressure, check for battery voltage at the inertia switch, if battery voltage is present and switch is closed, not tripped, replace the pump!!! If no voltage at the switch, check fuses and EFI relay. Recheck your work, since it seems to be related.
Good luck with it.
Replygoodguy, October 24, 2013, 02:54Master
I agree with pushrod
ReplyLanman11, October 25, 2013, 11:55Rookie
I will do that when I am back in town next week. The rail seems to have ZERO pressure as far as i can tell, but did not have a gauge hooked up. I have looked into fuel pumps already but looking for a way to avoid replacing that if its not necessary, so these tests help. I am wondering where the fuses and EFI are located. I have no manual. If you know a good one let me know.
Not sure what I could have done wrong to have this be the result unless I knocked something loose somewhere. It was pretty straightforward.
Greg's Orange Auto (10971 Answers) , Orange, CA - (714) 482-6185globalhelper October 24, 2013, 06:05Master
agree with pushrod