my truck sputters and bogs down upon acceleration
Hello i have a 1993 f150 xl 5.0 4 speed stick that has just started to sputter and bog upon acceleration, but it starts sputtering and bogging after about 5 minutes of driving it. I have replaced the map sensor, egr valve, egr position sensor, fuel filter, o2 sensor, fuel pressure regulator, ignition coil, and the spark plugs. If anyone can give me some answers on what my problem can be it will very helpful. Thanks
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First, always check for codes....always. There's a sticky at the top of this forum that tells you how. Second, I'd be looking more toward the TFI module, maybe even the TPS. The TFI is the electronic module mounted to the side of the distributor. If you can get it off of there, AutoZone can test it. While you're there, rent a fuel pressure gauge and see what your reading is at the rail both KOEO and KOER.
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id look into the TFI first honestly. after checking for codes.
on a side note, is the TFI mounted on the distributor only on very few trucks or what? all my rigs/and ones iv worked on got it on the drivers fender under the brake booster. |
I think up to 91 the TFI modules were on the distributor, then on the 9th gens they mounted them on the fender. But not 100% sure on that.
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ok sounds good i will check the tfi module and see if thats any good i will keep you guys updated on any thing i find.
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Originally Posted by sylver91
(Post 1828485)
I think up to 91 the TFI modules were on the distributor, then on the 9th gens they mounted them on the fender. But not 100% sure on that.
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so I brought my truck into a mechanic shop today and he said both of my fuel pumps are bad and that is what is causing my problem does this sound right to any of you?
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Originally Posted by regulater2626
(Post 1828802)
so I brought my truck into a mechanic shop today and he said both of my fuel pumps are bad and that is what is causing my problem does this sound right to any of you?
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