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Need wiring diagram for 1999 ford ranger, compressor clutch not engaging, jumped the connector, still nothing. trying to find out where & which relay it is

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 131 Answers

SOURCE: A/C - compressor clutch won't engage

Your A/C system has a pressure sensor. If the system needs recharged, the compressor will not engage.

Posted on Jul 06, 2008

SOURCE: i need a 2002 ford ranger fuse box diagram and afuel pump relay switch diagram

Hi

go to www.motorcraftservice.com then click on the owner guide and put in your truck information
then choose the 1st owner manual printing and should be between page # 184 to 200.

Good luck and I hope this will awnser your question.

Posted on Nov 08, 2008

  • 1348 Answers

SOURCE: 1996 lincoln towncar. No a/c compressor engagement unless jumped

the control unit is no good.i had a similar situation with a 98 tracker,and installed a switch to give it a ground for the compressor relay that comes from the a/c computer module.
it works good and goes on and off with the a/c switch.

Posted on Jul 18, 2009

honeymokey
  • 3113 Answers

SOURCE: ac clutch-1988 buick regal

It's low on freon

Posted on Apr 09, 2010

  • 1243 Answers

SOURCE: air conditioner not working on

the ECM supplies the ground circuit for the a/c clutch. the high pressure switch also needs to be closed to engage the clutch. when the low pressure switch and the high pressure switch are closed that completes the power circuit to trigger the relay.then the power on the #30 terminal can connect to the #87 terminal to send power to the a/c clutch.

Posted on Aug 02, 2011

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1 Answer

Ford Ranger 1998 3.0 air conditioning fuses relays


Pump a jumper in the connector the low pressure compressor cycling switch near the accumulator canister to see if the Compressor engages. See picture of switch below, it is in the low pressure line or the accumulator.
ac switcxh-klyc411vle3zfjjbuopdhrfe-2-0.jpg

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Pull a relay out and use paper clip to jump. Usually cross corner. Watch compressor clutch and see if engages when key is turn ahead. Don't start car. If it does good. Now take alligator clips and check relay. Clip each wire to negative and positive battery post. Then clip negative to negative relay pin. And touch positive to correct pin. If it doesn't click do it another relay so you know your doing it right. If determined relay is good. And your compressor clutch did engage when testing it. You are low on freon.

Jul 11, 2016 | Ford Cars & Trucks

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Help 2008 ford fusion heater and ac stopped working


1) TEST the fuse+ relar of a/c
see the next steps and fix it. God bless you
If so, the compressor is working and the A/C system probably contains enough refrigerant to make cold air, so the problem is inside the HVAC unit. Replace the motor that controls the blend air door (this is a difficult job and best left to a professional since it involves tearing apart the HVAC unit -- about an 8 to 10 hour job!).
If the compressor does not engage when you turn on the A/C, see if it will run by jumping the compressor clutch wire directly to the battery (use a fused jumper wire). If the compressor works when you jump it, and the A/C blows cold air, the system contains refrigerant and the fault is likely a bad A/C compressor clutch relay or a bad clutch cycling switch or pressure switch.
If the compressor does not engage when you jump it, the problem is a bad compressor clutch.
If the clutch engages but the compressor does not turn (the belt will start to slip and squeal), the compressor is locked up and you need a new compressor.
If the compressor clutch engages and turns the compressor, but the A/C still does not blow cold air, the system is probably low on refrigerant and needs to be recharged

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Oct 05, 2012 | 2008 Ford Fusion

1 Answer

A/C compressor on 95 astro van does not engage at all.


There are a few reasons for the compressor not engaging. Lets start with the most common. low ac gas.A bad clutch on the compressor.Blown fuse.
Let is start with testing for low gas. (134a freon).Locate the dryer. this is on the passenger side of engine compartment. it looks like a tall cylinder, on the top side you will see a switch. unplug switch connector and jump the two terminals in connector with a piece of wire, this is the low pressure or cycling switch. you will be completing the circuit by jumping a wire across the terminals.If the compressor turns on when connectors are jumped then you are low on gas and the system needs recharging.
If the compressor does not urn on then check all fuses, if fuses are good then the next step is to go to compressor and test for power and ground. If you have power and a good ground on the connector to compressor then compressor clutch is bad.A bad clutch will some times blown fuses, so if you replace the fuse because it was blown and it blows again then clutch is bad.
Another test that will help is when you remove the connector from the cycling low pressure switch , test the connector. one wire on the connector should have power when ac is turned on,
Hope this helps let me know what the outcome is. Good day.
I have enclosed a picture of the switch and dryer to help you locate it.If you jump the terminals

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3 Answers

Replaced the ac compressor but now no power to compressor but have power to low and high pressure switches. checked relay under hood, relay and fuse in cabin. what am i missing?


Put a jump wire in the high pressure switch plug. If the compressor works. replace the high pressure switch. Let me know and we can go from there.

Aug 22, 2011 | 1999 Ford Expedition

1 Answer

When adding freon compressor would not kick on.


Hello, When you try to add Freon you need to have the compressor running to draw in the Freon. The low pressure switch in the A/C line needs to be jumped to make the compressor clutch work.

This switch should be close to the oblong tank and has a electric connector on it. When you take a U shaped wire and insert it into the connector harness, the clutch should engage. You jump the connector after the engine is running and only long enough to do 1 can or less. After that you should notice the compressor clutch working better so you remove the jumper and plug the harness connector back on the switch.

Too much of a good thing will make your A/C worse. You want to measure the pressure in the system with a gauge. There are 2 pressure switches, a high and low. You do not want to overfill the system. The longer the system can stay in a "sweet spot" of pressure, the longer the compressor clutch will stay on.

The gauges usually come with charting about pressure versus outside temperature. The amount of fill in a 70 degree day will be different in a 100 degree day so be aware since you are working with a gas that expands.

I hope my solution is very helpful to you.

Jul 24, 2011 | 2008 Ford Explorer

1 Answer

The a/c clutch wont engage


Did you try jumping where the Clutch relay plugs into the fuse/relay box ? Pin 87 & 30 are the compressor clutch coil power supply . If you look on the bottom of the relay you will see four set's of numbers 30 & 87 , 85 & 86 . If you take a piece of wire an jump 30 to 87 this will send B+ voltage to the clutch coil engaging the compressor . Is the PCM turning on the relay ?
The Trainer 40 When the compressor won compress

Jul 29, 2017 | 1998 Chrysler Town & Country

1 Answer

1998 Crown Victoria air conditioner


Fuse 9, 50A under hood, Fuse 5 15A Instrument panel. If they're ok, make sure the compressor clutch can be turned by hand (engine off, obviously). If not replace the compressor. Most common problem is the cycle switch. That should be the electrical connector on top of the accumulator. Just jump that by backprobing the connector on both sides with a pinand connect them, with the car on and a/c on if the compressor clutch engages, replace the switch. If it doesn't, try wiggling wire harness and watch it, if it engages, find a broken wire and repair it.

Aug 11, 2009 | 1998 Ford Crown Victoria

2 Answers

A/c compressor wont kick on


the only other thing in the circuit is the pressure switch...unplug/ jump across the connector of the switch to verify circuit integrity and go from there...sometimes this is neccessary to charge freon fully so compressor will stay running to draw freon in the low side.

Jun 25, 2009 | 1994 Ford Ranger Supercab

1 Answer

Ac new and ran for 4 months then stoped.


Try checking the spacing of the clutch of the compressor to your A/C...chances are the gap is too large and will not pull down to engage the compressor. That should eliminate the jump wire and keep your car snowing. No clutch to engage the compressor, no A/C.

Apr 19, 2009 | 1999 Chevrolet Lumina

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