Bad Deal
Thread Starter
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Elder User
Joined: Oct 2009
Posts: 871
Likes: 1
From: New Albany, MS
Bad Deal
My dad has an 86 f150 4x4 with a 300. The thing has always run really good except, the other day I drove it into town to get some gas and on the way the engine completely quit, I figured maybe it was out of gas and I was going at a good clip so I just left it in gear so maybe it would start back up however, after about 10 seconds of coasting I heard an explosive pop, and I pulled the truck off the road. The muffler had completely blown out the welded seam. I say all this to say:
I think perhaps that something in the ignition circuit quit and the motor was getting no spark, and since combustion was not taken place in the engine, it took place in the muffler resulting in the muffler's catostrophic failure. SO MY QUESTION IS: What do ya'll think could be the culprit of this catastrophe?
I think perhaps that something in the ignition circuit quit and the motor was getting no spark, and since combustion was not taken place in the engine, it took place in the muffler resulting in the muffler's catostrophic failure. SO MY QUESTION IS: What do ya'll think could be the culprit of this catastrophe?
Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
I think he might be insinuating the driver turned the key off, pumped the pedal a couple times and turned the key back on ...
Think dad might be mad!
But that is only my read on Brad's post and in no way means, that is what he meant!
Thekingofcows, Did it start again or is it still dead??
-Enjoy
fh : )_~
Think dad might be mad!
But that is only my read on Brad's post and in no way means, that is what he meant!
Thekingofcows, Did it start again or is it still dead??
-Enjoy
fh : )_~
Posting Guru
Joined: Aug 2009
Posts: 2,271
Likes: 2
From: Mexia, TX
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Fleet Owner
Joined: May 2009
Posts: 21,437
Likes: 76
From: Gilbert, PA
I think he might be insinuating the driver turned the key off, pumped the pedal a couple times and turned the key back on ...
Think dad might be mad!
But that is only my read on Brad's post and in no way means, that is what he meant!
Thekingofcows, Did it start again or is it still dead??
-Enjoy
fh : )_~
Think dad might be mad!
But that is only my read on Brad's post and in no way means, that is what he meant!
Thekingofcows, Did it start again or is it still dead??
-Enjoy
fh : )_~
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Cargo Master
Joined: Mar 2007
Posts: 2,935
Likes: 34
From: Arcadia, Fla
Sounds like a TFI modual failing, better have a spare TFI and the special tool to R&R it when it fully craps out on you.
As a side note, I "lost" many mufflers due to afterburn. LOL So a stright pipe fixed that and made it more intresting for any tailgaters behind me....
As a side note, I "lost" many mufflers due to afterburn. LOL So a stright pipe fixed that and made it more intresting for any tailgaters behind me....
Cargo Master
Joined: Apr 2010
Posts: 2,936
Likes: 9
From: Acworth, GA
Yes, the TFI (Thick Film Integration) Module is the Ignition Module. It is mounted on the side of the distributor. In this picture the module is located under the yellow oil dipstick handle and next to the oil filter.
Thread Starter
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Elder User
Joined: Oct 2009
Posts: 871
Likes: 1
From: New Albany, MS
Well over a month after my last post. And the truck has just been sitting there. I put a tfi module on it, however it did not help, I don't seem to be getting a spark, could it be a bad ignition coil?
Cargo Master
Joined: Apr 2010
Posts: 2,936
Likes: 9
From: Acworth, GA
I have some troubleshooting help posted here;
Ford Truck Enthusiasts Forums - Grubbworm's Album: Troubleshooting help, for anyone that needs it.
Some of it may help you, check it out.