95 Bronco Fuel Problems! NEED HELP!!!!!!!!!!
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95 Bronco Fuel Problems! NEED HELP!!!!!!!!!!
95 Bronco 5.8 No Start. Turn key on and fuel pump never shuts off. Replaced fuel pressure regulator, no help. I have 38 pounds pressure at fuel rail. I do have spark. I can hear fuel running through fuel rail, but truck will not start. Looking for any good ideas.
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From: GOING BACK TO TEXAS!!!
how do you know that you have spark at all of the plugs? First thing-pull codes: Ford Fuel Injection
this will give you an idea about what happened after it stopped running.
There are four things required for an engine to run: air, fuel, spark, compression. Take away one, and it won't run.
this will give you an idea about what happened after it stopped running.
There are four things required for an engine to run: air, fuel, spark, compression. Take away one, and it won't run.
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From: Olympia USA
You actually hear fuel running through the fuel rail? Something's seriously wrong with that. The fuel pump will run up to about 40-45 PSI and then shut off. If it is constanty running, you either have no fuel, or you are running it out into the cylinder walls or onto the ground. There is a schader valve on the driver's side, near the front of the rail. press that in momentarily, do you get fuel? It should squirt out under pressure.
TFI, Thick Film Integrated Ignition module. No Bronco owner should be without a spare one.
TFI, Thick Film Integrated Ignition module. No Bronco owner should be without a spare one.
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There is fuel coming out of schrader valve when I push it in. I think the fuel is just going back to the return line I hope. No gas in oil. If I pinch off return line pressure goes up to 70 lbs. Looked for TFI, can`t find it. Found box on driver side fender well that has heat sink fins, but doesn`t look like any pictures I see of TFI on a distributor. Can`t find anything that says TFI were on anything past 92.
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From: Small Town of Chapin SC
Look for the EEC box and the STI and go to the link timmy gave you. My Bronco is a 92. I had no trouble finding mine. It should be hooked on the inside of the fender on the drivers side almost all the way back to the Fire wall.
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From: Olympia USA
The heat sink over on the fenderwell is providing the heat dissipation for the TFI module. The older rigs had it on the distributor. Follow the recommendations of all who are telling you to run the codes. You should be able to do that, as it sits right now. It will give you more insight to the problem.
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From: Longview, TX
Codes first. Pull both KOEO and CM (continuous memory). If codes indicate TFI (ICM, Ignition control module in the heat sink) be sure to read my signature below before you buy one. Parts guys are not aware of the different sytems, at least not the ones locally nor on the Motorcraft web site. I finally found a black Motorcraft one for a 93 Taurus on eBay and it works great.
Last edited by b4hntn; Dec 13, 2008 at 09:03 PM. Reason: typo
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I dont have a reader, is there a way to use a paper clip like on the older chevy`s? I try with the ISP, but I get nothing because fuel pump doesn`t shut off. Last night I started it with carb cleaner, and it kept running so I could move it to a better location. A lot of black smoke, and it wouldn`t rev over 2500 rpm. If I get it started again is there a way to get codes while its running without a reader?
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From: Small Town of Chapin SC
Yea you can test it while its running with the KOER test
Try this link
Ford Fuel Injection KOER Test
Hope it works
Try this link
Ford Fuel Injection KOER Test
Hope it works
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From: Longview, TX
Ford Fuel Injection is the home page
Ford Fuel Injection How To Run a Self-Test tells how to pull codes
Note when the fuel pump stops be ready to count. However, you said the fuel pump does not stop. I am wondering/guessing if a fuel pump relay could be stuck closed. There should be two identical relays under the hood in the power distribution box. One for fuel pump, the other EEC. Swap them and see what happens.
Ford Fuel Injection How To Run a Self-Test tells how to pull codes
Note when the fuel pump stops be ready to count. However, you said the fuel pump does not stop. I am wondering/guessing if a fuel pump relay could be stuck closed. There should be two identical relays under the hood in the power distribution box. One for fuel pump, the other EEC. Swap them and see what happens.