Question about 1990 Ford F250

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I have a 1990 Ford F250 no power to air condition compressor any advice

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  • 164 Answers

Did you first look for blow fuse that controls your ac unit

Posted on Jul 28, 2009


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1990 Ford F250 7.5 V6 has a starter switch. Need wiring diagram for connecting a starter switch.

Not sure I understand your question. A 7.5 ltr Ford would be a V8.
There should be a starter solenoid on the fender that powers the starter. Are you trying to put a switch on the dash for that solenoid?

Jun 13, 2015 | 1990 Ford F250

1 Answer

1990 f250 won't start. Replace power module and distributor

Some models of the 'Duraspark' modules had defective programing and would 'go dead' on rare and unrepeatable conditions. You could 'clear' the condition by briefly switching (just a spark touch) the battery connections. IF it is getting fuel to the cylinders and ignition spark anytime--it WILL start or at least try to start.

Also check the fuel pump to be sure it is coming on.

Jul 23, 2014 | 1990 Ford F250

1 Answer

1990 Ford f250 brake lights and turn signals won't work - checked all fuses, flasher and bulbs and all are good, what could problem be??

Well the brake light and turn signal circuits are on two different fuses, but they both go thru the turn signal switch.
So I would start by checking for power in and out of the turn signal switch for each circuit.

Apr 07, 2013 | 1990 Ford F250

1 Answer

My 1990 Ford F250 won't start but has new starter, battery and ignition switch

Have you checked for 12 volts coming in going out of the the starter solenoid switch that is mounted passenger side fenderwell.

Jan 14, 2012 | 1990 Ford F250

1 Answer

No air conditioning

possible low pressure switch located on the accumulator

Jul 20, 2010 | 1990 Ford F250

1 Answer

How do i fix my power window the motor runs but window dosn't go up 1990 ford F250 two door Thanks for your help

the regulator assy has broken. remove interiopr door panel, disconnect all elctrical wires, remove a cple bolts and slid the regulator out. installtion is reverse of removal.

Aug 04, 2009 | 1990 Ford F250

1 Answer

1990 ford f250

I believe the connector you are inquiring about is where your vacuum connections come into play. If you have power brakes this is where the larger line hooks up from your power brake booster. The others will be specific to your engine configuration. Any leaky lines will adversely affect your vehicles performance and idle characteristics.

Aug 02, 2008 | 1990 Ford F250

2 Answers

Ford f250 a/c stoppes cooling when driving average speed

I think either the pressure switch that turns the AC compressor on and off is at fault or the magnetic clutch on the compressor is going open when it gets hot, when it stops working use a 12 volt test light to check if 12 volts is present at AC compressor connector, if it is'nt check the cycling switch in the low pressure line, that is the line that gets cold and is the largest size coming from the compressor, it may also be in the accumulator bottle.

Jul 14, 2008 | 2002 Ford F250 Super Duty SuperCab

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