Question about 1989 Ford F 250

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F 250 is dead

I do not get any power any where but the headlights....I changed the ignition and the starter relay.

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Check for the Gounding Lug on the engine Block being loose or dirty,most Fords have a central location for all their Gounds to be going to. Also Check that Fuse pael has not come loose and seperated as they are bolted together

Posted on Nov 18, 2008

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Lots of power, dash lights up but no ignition power to starter, relay changed, neutral start switch changed, fuses good.


Well, looking at the schematic, there is the IGN A (Fuse 6) in the under-hood fuse block feeding power to both the ignition switch and to the NO contact of the starter relay. Turning the ignition switch to the START position sends this voltage thru the CRANK (Fuse 8) in the instrument panel fuse block and thru the PARK/NEUTRAL position switch, thru the starter relay coil to ground. This should activate the Starter relay and pass voltage to the starter solenoid to ground, activating it. One the starter solenoid activates, batter power is sent to the starter motor, activating it. If, as you say, the fuses are good, the starter relay was replaced and is good, and the Park/Neutral position switch was replaced and is good, then then only items left are the ignition switch itself, the starter solenoid/motor, or the wiring of the circuit.

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89-f-250 460 engine no power -electric


Check for an impact switch they had one on cars these years,It cut fuel pump and ECM, see in your operating manuel where they put it, you had to push on the red button whith your finger to recet it

It is hiden in the body somewhere, could be your problem,we use to bang the fender to make it trip for a joke

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2003 dodge caravan 2.4 motor will not start has full power going to starter but not when you turn ignition there is no power at small wire at starter


before i can go any further i have seen bad starter kill power to small wire, does not sound correct i know but it happens, remove the small wire from the starter and test it for power with key in the crank position.

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Suddenly my car is dead


Sounds like your starter is bad.

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Turn the ign,no power to the starter relay


check output power from ignition switch to starter relay prob bad ignition switch does it have power to ecm if so switch is more than likely bad also if no ecm power look at the eec relay ;)

Jun 16, 2010 | 1988 Ford F 250

1 Answer

My 98 jeep grand cherokee wont start. It doesnt even click or turn over. battery is fine, headlights, dome lights, all go on. Radio doesnt work with ignition on. I checked ALL the fuses, I replaced the...


fuse 8 40a supplies power to starter relay and ignition switch, to close the starter solenoid and engage the starter which draws directly from the battery. check to see that the starter relay is closing, if not ensure that the park neutral switch is not faulty (open circuit), it provides path to close relay (ground side) on the 85 - 86 terminals. if the starter relay does not close the starter will not run. if you have a spare relay swap out the relay for a quick fix attempt. hope this helps

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I have a Lincoln town car signiture series..Everytime (recently) I use the headlights the battery goe's dead, the alternater is good and the battery is new, is there a relay that controls the headlights, a...


I think you might try Autozone or Oreillys for a free scan. Make sure you have an Alternator that is putting out the full amount. There are several stages built into the alternator and it can run with one or two missing.

There are relays but usually you either have power or you don't. You need to have the amount of power draw measured with the engine running and the lights off or on. Then you need to measure the power draw with the engine off, ignition off to see if anything is running that should not be.

A rear window defroster can silently pull great amounts of power. A bad ignition switch can keep things powered up when the key is off and out of the ignition.

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Starter clicks but doesn't fire engine. Just put in a new battery. Occaisionally, on the 5th or 6th try it starts.


Yes. the starter is malfunctioning at this time. it could also eb a ignition issue as well. here is a quick starter test procedure that will help you troubleshoot a bit.


Step 1 Check for 12 volts on the large wire attached to the top terminal on the starter relay. It should have battery voltage. If not, the battery, terminals or wire is bad.

Step 2 Check the small wire on the solenoid for power when the key is in the start position. Remove the small wire on the solenoid and have a helper hold the key in the start position. Check the wire for battery voltage. If there is voltage, the starter is bad. If there is no voltage, replace the wire.

Step 3 Check the fuse in the fuse box under the hood on the left fender well. If it is good, check the relay by pulling it out and checking for power at one terminal with the key off. If there is no power, the problem is in the fuse box between the fuse and the relay. If there is power, have the helper hold the key in the start position once again and check for power at another terminal from the ignition key. If there is power, the relay is bad. If there is no power, the starter circuit is suspect.

Step 4 Check to see if there is power to the neutral safety switch if there is no power at the relay. Use the voltmeter to check for power with the key in start. If there is power going in, check for power going out. If there is no power going in, the security system or ignition switch is suspect. If there is power going in and none coming out, the switch is bad. If there is power coming out, the problem is between the neutral switch and the relay.

Step 5 Remove the cover on the bottom of the steering column. Check the solid yellow wire for power when the key is in the start position. If there is no power, the ignition switch is bad.

Sep 21, 2009 | Dodge Caravan Cars & Trucks

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