HELP Wanted! 92 bronco xlt
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HELP Wanted! 92 bronco xlt
I just bought this vehicle from my grandfather literally 5 days, ago. It was in a mechanic where he lives (about 5 hours away) 2 months ago, everything was checked out and a bunch was replaced. My fiance was driving to the store to get me some medicine(I was very ill). She went through a school zone and was cruising at the posted speed of 15mph. According to her to it just stopped. I had it towed back to my house, and ive checked the fuel pump comes on, it does. The relays click when the key is turned, however there is no spark. Ive tried looking for and creating an arc at the distributor cap to no avail. Then following the cord I figured it was just the coil. Ive just replaced the coil and still no fire in the wires. I'm clueless and at a loss, I have to be @ school by monday so any quick direction would be amazing.
Thank you for your time!
Thank you for your time!
The Southernmost Mod
Joined: Dec 2004
Posts: 6,902
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From: Caracas, Venezuela
Before anything, check the truck for codes, it's the fastest way for the truck to tell you what's wrong. Anyway, keep in mind that in order for the truck to work it needs two things: Spark and fuel (you already seem to be on the right track, but there are many other parts appart from the fuel pump and the coil involved here). In Ford Fuel Injection you will find directions to check the codes without a reader. If you prefer using a code reader, the Equus 3145 should be the right choice, easy to use and cheap at around 30$ (will also work with any OBD I compatible vehicle). Good luck and welcome to the site!
Lead Driver
Joined: Sep 2002
Posts: 9,182
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From: Gateway to the West
Welcome to FTE and the Big Bronco Forum. We will do our best to get you the most accurate info we can dig up.
Encho is right. You will only be able to do a KOEO (Key On Engine Off) test with the truck not running but it will give you some clue as to where the problem might be.
I'm not big on guessing at these things simply because guessing wrong costs time and money. However, in this case, a sudden immediate failure as you described is typically indicative of a failed TFI (ignition) module. Pull codes first but I'd be prepared to replace the small grey 7-pin module mounted to the driver's inner fender in a large heat sink between the hood hinge and the power distro box.
Encho is right. You will only be able to do a KOEO (Key On Engine Off) test with the truck not running but it will give you some clue as to where the problem might be.
I'm not big on guessing at these things simply because guessing wrong costs time and money. However, in this case, a sudden immediate failure as you described is typically indicative of a failed TFI (ignition) module. Pull codes first but I'd be prepared to replace the small grey 7-pin module mounted to the driver's inner fender in a large heat sink between the hood hinge and the power distro box.
Posting Guru
Joined: Apr 2005
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From: Longview, TX
You have heard from some of the best. I have the Equus 3145 code reader and keep it in the Bronco. In addition to the KOEO code there are CM (Continuous Memory) codes which show the history of code generation.
IF....you replace the module I don't know if the 92 takes the grey or the black one. The wiring harness is different for the two even though they plug in just fine the grey will get very hot if replacing a black one with grey. I have two grey Motorcraft which I can't use if your codes indicate you need one.
First thing, check the ground wires attacthed to the fender by the battery. There should also be a battery cable pig tail to that connector and the stud should not be loose in the fender. Dissassembel and clean the ground stud and be sure it grounds the fender in addition to the wires.
IF....you replace the module I don't know if the 92 takes the grey or the black one. The wiring harness is different for the two even though they plug in just fine the grey will get very hot if replacing a black one with grey. I have two grey Motorcraft which I can't use if your codes indicate you need one.
First thing, check the ground wires attacthed to the fender by the battery. There should also be a battery cable pig tail to that connector and the stud should not be loose in the fender. Dissassembel and clean the ground stud and be sure it grounds the fender in addition to the wires.
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Thank you guys for all your help, ive fallen ill the past couple days. I have been on and off the phone with my grandfather and he told me it was the TFI module, or ignition control module as well. I'm hoping those are one and the same items, because he said TFI and im holding an ignition control lol. I'm going to try to replace that today, as soon as i can find some sort of guide telling me how to do it haha.
Just wanted to say thank you all very much for the help and ideas, will report back with whatever happens.
P.S. Discount/advanced/walmart did not have any code readers for the OBD 1 systems, discount and advanced had them, but had to special order them and woulda cost me about $100. So after talking with the grandfather im taking an educated (I hope) shot in the dark with the Ignition Control Module.
Just wanted to say thank you all very much for the help and ideas, will report back with whatever happens.
P.S. Discount/advanced/walmart did not have any code readers for the OBD 1 systems, discount and advanced had them, but had to special order them and woulda cost me about $100. So after talking with the grandfather im taking an educated (I hope) shot in the dark with the Ignition Control Module.
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Just replaced the ignition module, and to no avail. Going to try what encho suggested and follow the guide and try my best to get the codes manually.
I heard through an uncle that there are sometimes 2 modules, the one on the inside of the fender that i just replaced, and one on the bottom of the distributor.
I have no idea how to get to the one closest to the distributor, If anyone can offer me some help on this it would be great. My google skills are failing me and there's no type of guide i can find.
As always, appreciate your time.
I heard through an uncle that there are sometimes 2 modules, the one on the inside of the fender that i just replaced, and one on the bottom of the distributor.
I have no idea how to get to the one closest to the distributor, If anyone can offer me some help on this it would be great. My google skills are failing me and there's no type of guide i can find.
As always, appreciate your time.
