Question about 1989 Ford F 250
If you turn the key it gets spark but wont start completely. When you listen underneath you can here that the fuel pump is not working
Check the fuel pressure is this injected if so put a psi gadge on rail or just put the rubber hose into a quart jar an see if ya get a good flow
...if not could be the filter or pump....check wires to pump
Posted on Nov 26, 2013
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Posted on Jan 02, 2017
SOURCE: 1992 ford ranger
If this speratic problem seams to happen most when it's raining or damp, it is a shorting master contol that is to blame. The master control mother board is located on the firewall. Over time, the moisture seal on the cover fails and the motherboard gets damp and meny false signals are sent. This can even happen if the truck is off and key is not in the ignition (this mother board will alwas have power going to it as long as the battery is connected). A cheap way to check this is to remove the cover, put a plastic grocery bag over the mother board and use an small elastic band to close the open end, allow the wires connected to the mother board to go out the open end. If this solves the problem, replace the seals on the master control cover. Care should be taken as if there is ANY corrossion on the mother board, it will need to be replaced.
Posted on Oct 28, 2008
the inertia switch is in front of the passenger seat, bolted to the fire wall, hidden by the carpet on an 89 and behind the kick panel on the 99. 99 should have a picture that looks like a gas station pump with a line thru it. pull panel off, push big red button. on 89 its the little grey button on the top.
Posted on Oct 03, 2009
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If the car won't turn over your immediate problem is with the starter or the battery. subsequently if you have a bad battery you could also have a bad alternator not charging the battery. You problem isn't with the fuel pump as it does not assist the engine in cranking.
Posted on Apr 26, 2010
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