I just swapped out 351W 5.8L in my 89 Bronco. Durning the swap I had to take the engine wiring harness off of the old engine and put it on the new one this ment replacing the new engine's Distibuter with the old one. when it was all done I tride to trun it over and the starter engages turns the engine but it wont turn over. I have fuel and air, but no spark. I checked the spark plugs and they are getting nothing. I believe I have the TFI-IV ignition sytem with, and am using my Distributor mounted ICM distributor. ut again no spark. I'm not good with electrical systems, but I need to meet IM rergs up here so I can't go without the comp and related wiring. I did some trouble shooting and the ground off the coil was out of speck. Realisticly I'm lost any suggestions??
Ignition issues 89 Bronco
- Thread starter ZED29
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JLasvegas
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I believe he means radiator supports, there should be ground straps going to them
Rad support, core support, radiator support. The Radiator bolts to it. the wiring harness runs along it from the drivers side to the passenger side, before the wiring harness disappears behind the radiator there is a ground off the wiring harness. when it appears on the other side of the radiator there is another ground. Those are the ones that Im talking about. the truck will not run without those 2 wires hooked up.
BroncoJoe19
Active member
I've never done an engine swap, but there are others here who have done many. Did you swap an '89 351 for another '89 351? If not, then depending upon the year, you may need to swap out a number of sensors to go with your wiring harness, and the computer.
I think I saw a computer identification and compatability list at www.fordfuelinjection.com
As Yardape suggested clean and tight grounds are important.
Here is a list of grounds for a '92 - '96 bronc
I took a look in my Haynes manual.
They list 10 separate grounds... A-J.
A. Starter mounting bolt
B. Right front of Engine compartment near the battery
C. Lower left front of engine
D. Right front of engine compartment on upper radiator support.
E. Left front of engine compartment Upper radiator support
F. Bottom of cowl panel
G. Rear of left fender apron
H. Behind bottom of right cowl panel
I. Left rear corner of cargo area near rear lamp assembly
J. Under center rear of vehicle on rear cross member.
You may also try pulling diagnostic codes
Reading codes tutorial
http://broncozone.com/forums/index.php?s=&...ost&p=74581
good luck
I think I saw a computer identification and compatability list at www.fordfuelinjection.com
As Yardape suggested clean and tight grounds are important.
Here is a list of grounds for a '92 - '96 bronc
I took a look in my Haynes manual.
They list 10 separate grounds... A-J.
A. Starter mounting bolt
B. Right front of Engine compartment near the battery
C. Lower left front of engine
D. Right front of engine compartment on upper radiator support.
E. Left front of engine compartment Upper radiator support
F. Bottom of cowl panel
G. Rear of left fender apron
H. Behind bottom of right cowl panel
I. Left rear corner of cargo area near rear lamp assembly
J. Under center rear of vehicle on rear cross member.
You may also try pulling diagnostic codes
Reading codes tutorial
http://broncozone.com/forums/index.php?s=&...ost&p=74581
good luck
yo,
I concur w/Joe...Welcome back Joe!
Do the self test; and since it' won't strat, you'll need to limit it to the KOEO part.
KEY ON ENGINE OFF
I have a fe Troubleshooting Link in my broncolinks.com site un der IGNITION
One is;
"...Troubleshooting Tips, "Ford - 1. Verify charging system operation; specifically, charging voltage. Since you can't do this, ck voltahe at batty, etc. while staic and when cranking.
2. Verify ignition system operation; specifically, there are no open or disconnected plug wires.
3. Remove distributor cap and inspect connections where TFI module hooks to the Hall Effect Switch connector. If there is any sign of deterioration at the connector, the Hall Effect pickup must be replaced. Crankcase vapors are forced into the distributor due to excessive crankcase pressure due to a worn engine or an improperly maintained PCV system. The crankcase vapors cause deterioration of the insulation around the connectors causing the module to short out."
Source: by napaechlin.com...
Recall, TFI Module; for 84 to 89, and 84-91 Bronco & Ford truck/van Source: by Epinions.com
I concur w/Joe...Welcome back Joe!
Do the self test; and since it' won't strat, you'll need to limit it to the KOEO part.
KEY ON ENGINE OFF
I have a fe Troubleshooting Link in my broncolinks.com site un der IGNITION
One is;
"...Troubleshooting Tips, "Ford - 1. Verify charging system operation; specifically, charging voltage. Since you can't do this, ck voltahe at batty, etc. while staic and when cranking.
2. Verify ignition system operation; specifically, there are no open or disconnected plug wires.
3. Remove distributor cap and inspect connections where TFI module hooks to the Hall Effect Switch connector. If there is any sign of deterioration at the connector, the Hall Effect pickup must be replaced. Crankcase vapors are forced into the distributor due to excessive crankcase pressure due to a worn engine or an improperly maintained PCV system. The crankcase vapors cause deterioration of the insulation around the connectors causing the module to short out."
Source: by napaechlin.com...
Recall, TFI Module; for 84 to 89, and 84-91 Bronco & Ford truck/van Source: by Epinions.com
Wow, thank you so much for all the feed back. I have alot of things to check in to now. It will take me a little while to do this and then I'll tell every one how it went.
I'm not sure what year Bronco the new engine is out of I'll find out though. I know it's a 351W and I know that it is the TFI-IV ignition system but the new engine had a remote mounted ICM. I assumed they were relativly close in year.
Thanks again
I'm not sure what year Bronco the new engine is out of I'll find out though. I know it's a 351W and I know that it is the TFI-IV ignition system but the new engine had a remote mounted ICM. I assumed they were relativly close in year.
Thanks again
Zed,
I believe Ford moved it in 92 to hood hinge area.
Do you have the casting number?
I believe Ford moved it in 92 to hood hinge area.
Do you have the casting number?
Yo,
I've been down for 2 days.. am back now for a few...
see a few troubleshooting Links in my site;
such as:
Misfiring, Rough Idle, Surge, & Ping-Knock Symptoms, due to a Magnetized Shutter Wheel, (Bronco & all Fords w/EEC IV & TFI);
A Long-Shot
Overview & Diagram, Ford TFI; "the Hall Effect Signal is called the
I've been down for 2 days.. am back now for a few...
see a few troubleshooting Links in my site;
such as:
Misfiring, Rough Idle, Surge, & Ping-Knock Symptoms, due to a Magnetized Shutter Wheel, (Bronco & all Fords w/EEC IV & TFI);
A Long-Shot
Overview & Diagram, Ford TFI; "the Hall Effect Signal is called the
Wow that last post blew my febal mind!!
I have not been able to look at my Bronco in a few days but I feel more confident with so many things to try when I do look at it agian. Thank you for your suggestions. I'm geussing it does not matter that My bronco is an 89 and the engine is out of a 93?
They are the same and I used my wire harness which you are supposed to do right? The engine is the same its just the wires Ford had running that chaged between the years. That last comment is actually a question not a statement of fact.
I have not been able to look at my Bronco in a few days but I feel more confident with so many things to try when I do look at it agian. Thank you for your suggestions. I'm geussing it does not matter that My bronco is an 89 and the engine is out of a 93?
They are the same and I used my wire harness which you are supposed to do right? The engine is the same its just the wires Ford had running that chaged between the years. That last comment is actually a question not a statement of fact.
Zed,
Ignore that last long shot TSB.
Try the Self Test by BroncoJoe
I have to see if there is a difference in EEC's between 93 engine and your EEC.
I do see different part numbers.
Identification, Bronco & Ford Source: by Ryan M
Don't think there is a problem so far w/the changes in the EEC from your year to 93 (engine) as far as spark. But I believe you have an AOD and the 93 had an E4OD.
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Seabronc
New member
ZED29, would you post some pictures of the ignition system including the remote mounted ICM. It is important to establish what ignition system you have.
Good luck,
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Good luck,
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BroncoJoe19
Active member
Zed,
Do you have a Overdrive on off switch on your dash?
If you do... you have an E4OD trans, otherwise you have a AOD trans. I have a '90 with a E4OD. I think that '89 was the cross-over year.
Now that Seabronc has jumped in, you are fortunate in that you have two of the most knowledgeable people on broncozone who have taken an interest in helping you out. Hang in there, with their help you'll get this baby running.
joe
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rostheiceman
New member
whats up zed, theres a lot of things that could be wrong other then pulling codes there are things you can check you say your not getting spark is that at the plug? you should make shure youe getting spark at the coil, then the dist, you may have a broke wire along the way a bad coil or a bad p/u coil start with the easy stuff then work you way from there. The older ignition systum wiring is pretty strait fowerd if after checking for spark at the three main points(coil,dist,plugs)get your self a haynes book and fallow the wiring diagram and it should lead you right to the problum
Seabronc
New member
Thanks for the vote Joe. I may be a pretty good troubleshooter, but there are guys hanging around here that have forgotten more than I know.
My previous question is headed in the same general direction as Yardtape. It probably would have been better to leave the old engine harness and computer and swap the appropriate parts from the old engine to the new one. Short of that, ZED29 needs to establish what ignition system is there now. If it had a harness with it, then I'm assuming that ZED29 included computer from the doner truck with it. It is very likely that ZED29 has some incompatible stuff linked up together or he dragged along some bad parts.
>-
My previous question is headed in the same general direction as Yardtape. It probably would have been better to leave the old engine harness and computer and swap the appropriate parts from the old engine to the new one. Short of that, ZED29 needs to establish what ignition system is there now. If it had a harness with it, then I'm assuming that ZED29 included computer from the doner truck with it. It is very likely that ZED29 has some incompatible stuff linked up together or he dragged along some bad parts.
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