Question about 1989 Ford Bronco II
We have put in a new fuel pump and fuel filter and are getting gas to the rail but the vehicle will not stay on. It's like the engine is not getting enough fuel to stay on. Prior to the new fuel pump I could drive the vehicle for about 3 miles then it would shut off. I simply had to turn the vehicle completely off then re-start the engine and it would go for another 3 miles then shut off again, like there was no continual flow of fuel. That 's why I went with changing fuel pump but now can't even get the engine to stay on
You might want to check these out. 1-make sure fuel cap vent is not blocked. 2-there is a fuel cut off switch normally located in the boot this may need resetting.3-get someone to run a diagnostic check using fuel delivery program....Good-luck.
Posted on Dec 30, 2012
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Posted on Jan 02, 2017
SOURCE: 1989 Ford Bronco 5.0 engine
Timing is everything. Try testing you PCM. It's the little gray box near the base of your distributor. If you have spark, and fuel at the rail (plus good fuel rail pressure) than the timing is your problem.
Check the pet-**** on the fuel rail assembly to make sure the fuel at the rail is under presure and getting to your injectors. Then again make sure you have spark, lastly you should be able to test the trouble codes to see if your PCM is the issue.
Posted on Apr 15, 2009
SOURCE: 1987 ford bronco fuel issues
First thing to check out will be the fuel pump relay under the hood. It is the one who drives the pump, so if it is defective the pump will not work either to prime the engine, or to make it run. Secondly, you need to check if the fuel filters are OK cause sometimes they clog up and prevent enough fuel from reaching the engine. Thirdly, check the injector(s) for cloging, and clean or replace them as needed. If none of this helps, then the problem probably has nothing to do with fuel delivery, and the next step to check will be the whole ignition system, which is also one of the most comon bronco problems.
Posted on Jul 07, 2009
Did you flush out the injector lines? Bad injectors are known to act this way. Check fuel pressure regulator for proper operation.
Posted on Dec 26, 2009
ye i agree with jim rgc get a perfesional to take a look but it could be you shift sensor i haven a 91 4x4 and the same thing happend to me or needs new trans filter
Posted on Jul 25, 2010
The in-tank fuel pump may not be working however I would check and make sure you have power to the pump before just replacing it.Iyou don't have power at the pump then check the inertia switch and if that's doesn't have power check to see if the fuel pump relay is powering up the pump and repair as needed
Posted on Jul 29, 2010
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