Please Help Broke Down
Posting Guru
Joined: Jun 2004
Posts: 1,371
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From: just outside of Phila.
To 89bronc:
I agree with all of the guys talking about it beijng the ignition control module. It's not an expensive fix, and definitely cured my problems with the same symptoms you described. I'd give that a shot first
I agree with all of the guys talking about it beijng the ignition control module. It's not an expensive fix, and definitely cured my problems with the same symptoms you described. I'd give that a shot first
Posting Guru
Joined: Jun 2004
Posts: 1,371
Likes: 0
From: just outside of Phila.
djjoshuad:
I have an 88 302EFI and I'm assuming that 89bronc has an 89 Bronco. If you talking about what I said, the part is the ignition control module. It's on the distributor and is a small, square-like flat piece. I got it a the local parts store near me for cheap, but I had someone do it for me because I was having a hard time taking the distributor out. The parts guy actually had a bronco similar and had an extra ICM in his glove box just in case too. He made it out to be a common fix, and I don't remember the final tally at all, I know it was under 100 bucks though. Good luck.
I have an 88 302EFI and I'm assuming that 89bronc has an 89 Bronco. If you talking about what I said, the part is the ignition control module. It's on the distributor and is a small, square-like flat piece. I got it a the local parts store near me for cheap, but I had someone do it for me because I was having a hard time taking the distributor out. The parts guy actually had a bronco similar and had an extra ICM in his glove box just in case too. He made it out to be a common fix, and I don't remember the final tally at all, I know it was under 100 bucks though. Good luck.
Senior User
Joined: Jun 2004
Posts: 154
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From: San Antonio
dont know if you have fixed the problem, but my 89 bronco did the same and when we took the igntion module in to be tested it was fine. however after reinstalling everything i forgot to plg in the coolant temp sensor and it started right up. pluged it in nothing, unplugged it and it started. replced that sensor and it worked fined. now i am having some sort of relay problem. so if you can help with that it would be great.
Senior User
Joined: Jan 2004
Posts: 139
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From: West Texas
well, i may be looking too far into my problem, but i replaced my carberator, icm, cap & rotor, plugs, wires, coil, fuel pump, fuel filter @carb and my bronco is still dying on me. i have pretty much run out of things that i know how to work on. my vaccum hoses are none existant (previous owner decided it didnt need any) and it is too expensive to get my eec-iv unit tested, (for twenty more dollars i can buy a new one) so i dont know what to do next. i got a vaccum hose diagram but dont undertand completely what all of it meens. the problem happens after it is warmed up, it will lose power and die, or just die right off, sometimes it feels like it is dropping off and surging back up to power. any ideas?
New User
Joined: Jul 2004
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Glad I found this thread....
Its good to know that I am not alone with this problem. I have a 92 Bronco 351 and its doing the same thing as described in some of these posts. It will run great until about 1-2 hours into driving and it will sputter and die. It wont start back up until it cools down. My Dad decided to take it to a shop (I warned that it wouldnt be a simple fix) and they tested everything (supposedly). The changed the ignition module and tps sensor. Fuel pressure was okay, fuel filter is new, air filter is new, plugs and wires are new.
They let it idle for a long period of time in hopes that the check engine light would come on and nothing happened. This leads me to believe that it could be the fuel pump connections or fuel pumps as mentioned before. I am going to test the connections and possibly replace the fuel pumps as well.
Another thing, I need to pick up an OBD diagnostic tool to read the check engine codes....any suggestions on what to pick up? Thanks!
They let it idle for a long period of time in hopes that the check engine light would come on and nothing happened. This leads me to believe that it could be the fuel pump connections or fuel pumps as mentioned before. I am going to test the connections and possibly replace the fuel pumps as well.
Another thing, I need to pick up an OBD diagnostic tool to read the check engine codes....any suggestions on what to pick up? Thanks!
Senior User
Joined: Jan 2004
Posts: 139
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From: West Texas
that mechanic shop has no idea what they are doing. what the problem ends up being only happens during driving conditions, not idling in the parking lot, it will idle all day, but take her out on the highway and the problem returns. i found out that my problem was the carberator, i never properly tuned it after the install and it just slipped my mind. the fuel mixture was so lean that it was causeing the engine to backfire, studder and die, lurch everytime i hit a bump. so check that damn fuel mixture!
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New User
Joined: Jul 2004
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Thanks skelator, yeah the truck is fuel injected so I may check the 02 sensors as well to make sure they are working properly. I also found out that it only has one fuel pump (in tank). I am going to test the voltage to the pump and replace the relay since its only 10 bucks. Yeah, and the worst part about it is the shop told me they couldnt pull any ECU codes unless the check engine light is on. Does anybody know if the 92 Ford Bronco is OBD I or OBD O? Thanks!
Senior User
Joined: Jan 2004
Posts: 139
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From: West Texas
im not sure if yours does it cause of year model, but some of them tell you codes when you turn the ignition on, the check engine light blinks in code when you turn the ignition on, my thinking is that if it dont blink when you turn it on then you arent throwing any codes. also have you changed the injectors? they could be clogged enough that you arent getting enough fuel at high speed.
New User
Joined: Jul 2004
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Yeah when I turn on the ignition there are no codes displayed. The check engine light will come on only just before it dies (which is after long periods of time). I am going to pick up an OBD-I scan tool to find out if it has stored any codes. As for the injectors, I will look into having them checked, but being the truck only has 67k original miles on it, I dont think they would be clogged, but who knows. The truck did sit for long periods of time when the previous owner had it. I have a feeling its going to take some time to figure out......thanks!
Last edited by cleanEG; Jul 23, 2004 at 12:18 PM.
New User
Joined: Jul 2004
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Yeah very true......and it only happens during long distance trips and since it has been really hot here, its been happening more frequently. I will keep you posted on how the troubleshooting goes...thanks for the tips...