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  #1  
Old 04-15-2010, 02:06 PM
foxracer01 foxracer01 is offline
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Default 2.9 wont start, no fire

My 89 bronco 2.9 shut off on me going down the road today and i cannot seem to trace the problem. I changed coils, ignition module, computer. and nothing has worked. I have power to both sides of the coil, and still no fire. I do not know how to check the coil but it ran another truck so i pulled it from it to put on mine and still nothing.. Any help would be appreciated. fuel pump does kick on and run Thanks
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Old 04-15-2010, 04:55 PM
whfd930 whfd930 is offline
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Default Re: 2.9 wont start, no fire

Quote:
Originally Posted by foxracer01 View Post
My 89 bronco 2.9 shut off on me going down the road today and i cannot seem to trace the problem. I changed coils, ignition module, computer. and nothing has worked. I have power to both sides of the coil, and still no fire. I do not know how to check the coil but it ran another truck so i pulled it from it to put on mine and still nothing.. Any help would be appreciated. fuel pump does kick on and run Thanks
89 model sounds like high mileage, so sounds like internal engine problems like cam or distributer broke if you have replaced all of these electronic components.
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Old 04-26-2010, 05:43 AM
shadetreeranger shadetreeranger is offline
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Default Re: 2.9 wont start, no fire

you say it wont fire.does that mean no spark? if it has spark you may not be gettin fuel,check your emergency fuel shut off switch,its on passenger side of the hump inside truck towards top of carpet, hit the reset button on it. see if you can hear fuel pump. or it could be the relay under hood(green relay).if none of those take TFI module off distributor and have it checked again. hint check it at least 6 or 7 times if any bad checks get another one.
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Old 11-30-2010, 04:48 PM
whcherman whcherman is offline
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Default Re: 2.9 wont start, no fire

i have a 2.9 L 1988. no spark cant resolve either
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Old 12-01-2010, 09:33 AM
Psychopete Psychopete is offline
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Default Re: 2.9 wont start, no fire

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Originally Posted by whcherman View Post
i have a 2.9 L 1988. no spark cant resolve either
What all has been diagnosed so far?
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Old 12-05-2010, 09:04 AM
me4sean me4sean is offline
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Default Re: 2.9 wont start, no fire

Have 86 sxt, replaced module twice, keeps frying.
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Old 12-05-2010, 05:27 PM
me4sean me4sean is offline
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Default Re: 2.9 wont start, no fire

Does the timing chain have anything to do with it?
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Old 12-05-2010, 07:14 PM
Psychopete Psychopete is offline
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Default Re: 2.9 wont start, no fire

It's recommended that the pick up coil in dist and TFI to be replaced if either or fail. I'd be tempted to try and find a good working dist to drop in.

Quote:
Originally Posted by fordfuelinjection
The stator and TFI both share the same grounds and power circuits, when one fails the other might be bad as well. It�s a standard practice at dealerships and most quality repair shops to replace the TFI and stator at the same time. This prevents the problem from re-appearing a few weeks latter.
http://www.fordfuelinjection.com/?p=25

Last edited by Psychopete; 12-05-2010 at 07:16 PM.
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Old 12-06-2010, 04:47 PM
me4sean me4sean is offline
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Default Re: 2.9 wont start, no fire

How can you tell if it's the computer?
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Old 12-07-2010, 06:53 AM
Psychopete Psychopete is offline
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Default Re: 2.9 wont start, no fire

I don't think there's any reasonable way of testing if the computer is the cause of the dying TFI modules short of replacing it with a new or used unit. '86 doesn't have a check engine light, might be worth while to run through diagnostic tests and check for codes related to the ignition system.
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  #11  
Old 12-24-2010, 09:17 PM
KickAssRanger KickAssRanger is offline
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Default Re: 2.9 wont start, no fire

I had the same problem. It was the switch below the dash under the carpet on the pasengers side. It has a white button on top. Take it off and wire it together, maybe that's the problem.
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