scubacy
New Member
- Joined
- June 19, 2009
- Messages
- 7
- Reaction score
- 0
- City, State
- AK
- Year, Model & Trim Level
- 1989 Bronco II
Hi all, first time poster and I loved my "new" B2 until about 3 weeks ago when it started acting up.
Sorry in advance if this post is long winded, but I'm out of ideas...
The engine's a 2.9 EFI that is supposed to be fairly new (50k) runs great when running. The old fuel pump had a noticeable hum, you could definitively tell if it was running or not. One day it took a while to start and I didn't notice the whine of the pump. I got about a block down the road and it died and wouldn't restart.
It was towed to a shop and of course it turned right over and ran all day no problem, they said fuel pressure was good.
I drove it home and dropped the tank, r/r fuel pump (only one in the tank), checked inside - the tank looked clean. replaced the fuel filter and both the EEC relay and the fuel pump relay. They were $12 so what the heck.
Day 2,3 and 4; Ran for about 20 minutes and then just dies, no sputtering, just quits like I turned it off the key. The ignition switch lock cylinder was damaged from the previous owner, so I thought maybe that was causing the problem. R/R the key cylinder - drove around died again. Suspecting the ignition coil now I replaced that too. No luck...
I replaced the fuel pressure regulator somewhere in there also.
Not sure what else to check that would cause it to randomly just quit instantly. The inertia switch looks brand new and I've never had to reset it. I tried the wiggle test while it was running and it seemed fine, but maybe I should bypass or replace it to see what happens. Would a bad TFI cause this sudden death syndrome?
Any ideas?
Sorry in advance if this post is long winded, but I'm out of ideas...
The engine's a 2.9 EFI that is supposed to be fairly new (50k) runs great when running. The old fuel pump had a noticeable hum, you could definitively tell if it was running or not. One day it took a while to start and I didn't notice the whine of the pump. I got about a block down the road and it died and wouldn't restart.
It was towed to a shop and of course it turned right over and ran all day no problem, they said fuel pressure was good.
I drove it home and dropped the tank, r/r fuel pump (only one in the tank), checked inside - the tank looked clean. replaced the fuel filter and both the EEC relay and the fuel pump relay. They were $12 so what the heck.
Day 2,3 and 4; Ran for about 20 minutes and then just dies, no sputtering, just quits like I turned it off the key. The ignition switch lock cylinder was damaged from the previous owner, so I thought maybe that was causing the problem. R/R the key cylinder - drove around died again. Suspecting the ignition coil now I replaced that too. No luck...
I replaced the fuel pressure regulator somewhere in there also.
Not sure what else to check that would cause it to randomly just quit instantly. The inertia switch looks brand new and I've never had to reset it. I tried the wiggle test while it was running and it seemed fine, but maybe I should bypass or replace it to see what happens. Would a bad TFI cause this sudden death syndrome?
Any ideas?