Question about 1985 AMC American Motors Eagle

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A vacuum leak can affect the opperation of your four wheel drive

If you have the select drive 4X4 engagement option, check the vacuum lines at the manifold just under the carb and also where they meet at the firewall to connect with the select drive switch. Also check the vacuum lines on the transmission and also the transfer case. If any of these lines are loose, disconnected, leaking, or otherwise malfunctioning they can cause your four-wheel drive option to not work or work improperly. I hope this helps, these are some problems I've experienced with my own AMC Eagle

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6ya6ya
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Posted on Jan 02, 2017

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keemo68
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SOURCE: WIRING DIAGRAM FOR 1984 AMC EAGLE

well you have several options you can go to a dealship and have them copy the diagram for you(i do this all the time) or you can purchase a repair manual at Napa or Oreilly's for around 20 bucks. it has diagrams and schematics in it. it also has alot of instructions in it so you can do repairs yourself. By the way i'm surprised that the mechanic doesn't have these diagrams himself. I was wandering why it won't start after you changed the plugs and wires could it be that maybe the firing order is wrong. i've done that myself a time or 2. double check the the plug wires to make sure they are in the right spot. if the problem is it won't crank. chances are you have a loose ground. please rate this..thanks

Posted on Sep 05, 2008

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SOURCE: I need an AMC Eagle 1981 Belt Diagram.

Hi there,
The Gates Corporation,s website;
http://www.gates.com/index.cfm
will help you identify which belts & hoses fit your vehicle, or any vehicle as long as you know what engine is in it!
Cheers, Stevie-RayG

Posted on Aug 26, 2009

ghost2233
  • 3606 Answers

SOURCE: 1984 AMC Eagle automatic transmission not fully

Check oil level, the motor has to run.
Could be the oil pump in the gearbox.
Or the link for the gear selector out of adjustment.
Maybe a gearbox oil filter.

Good luck.

Posted on Mar 05, 2011

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1 Answer

Have a 2010 Nissan frontier se 4x4 double cab, four wheel drive will not engage, light flashes on dash showing transfer and front axle not engaging


Possibly the vacuum line off the engine or transfer switch on shifter that ingages 4x4 front. Most are vacuum actuated and unless getting vacuum will not work. Check the vacuum lines.

Jun 19, 2017 | Nissan Cars & Trucks

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On my dash of my 3liter v6 1995 pajero there are four greenlights for to show when four by four are ingage.the two front greenlights keeps flashing even when its not in four by four


Flashing super select 4wd lights most often occur when the front differential automatic disconnect is not engaging /dis-engaging when you select/deselect 4x4 drive. Causes are:

- front differential sensor switch is damaged or faulty
- actuator rod/shaft jammed / seized (perhaps sand/mud/dirt)
- vacuum lines leak/popped off fittings
- vacuum solenoid valves (2no.) either maybe faulty
- electrical wiring connection issue (ecu/solenoids/switch)
- combination of the above

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1 Answer

2005 F150 4x4 hubs not engaging


First, You said you DID NOT check for voltage at the solenoid connector...I think that would be a real good idea.

Did you check to see if the vacuum lines actually had vacuum? Did you check to see if vacuum was present at the solenoid? Does the solenoid "click" when changes are made to the 4X4 controls? Did you check for Did you check that the vacuum from the solenoid to the axle actuator was being applied to the actuator?

Feb 28, 2012 | Ford F-150 Cars & Trucks

1 Answer

08 f150 4x4 on front end only one side is disengaging when in 2 wheel drive. The problem is when engaged into 4x4 wheel drive the front drive line spins and both sides engage but only the back wheels spin...


If I read this correctly ( which I might not have, bit early for me ), the front drive shaft will engage ( from the transfer case ) but the front wheels are not engaged ?

If so, sounds like either the vacuum from the IWE ( Integrated Wheel End ) is not being released, or the IWEs have had an issue with part vacuum ( damage vacuum lines ) and the IWE gear is rounded off.

If you pull the vacuum lines at the IWEs ( there are 2 lines, 1 is the vacuum line, the other is the vent tube that routes up into the engine compartment and is not attached to anything ), the front wheel should engage ( might need a 5 * turn to mesh the gears ). With the vacuum lines off, jack up the front axle ( take precautions, chock the rear wheels, parking brake, jack stands, etc ) see if the front wheels are engaged ( turning one wheel should turn the other ). The option is to do this after the truck has sat over night, and the vacuum has been released out of the vacuum reservoir.

If the wheels turn correctly ( engaged ) I would think the contact plates in the transfer case are not making contact. Good starting point for this is the connector on the side of the transfer case, some times this gets gummed up, and the pins do not make good contact. The contact plates in the transfer case are used for a few things, one of them is to signal the IWE solenoids to release vacuum to the IWEs.

Operationally vacuum holds the IWE ( Integrated Wheel Ends ) out, and once vacuum is removed the spring engages the IWE.

Here is a black diagram of the IWE vacuum system
sscullys_108.jpg

Feb 05, 2011 | 2004 Ford F150

1 Answer

1997 Ford F-150 4x4: Electronic four wheel drive will not engage. Was working then wouldn't engage when it was below 32 degress. But once warmed up would engage. But now it will NOT engage at all. The...


Lift and support the front of the truck so the front wheels are off the ground.
Key on, engage 4x4 and try to turn the front drive shaft.
If it turns it is a problem with the transfer case.
If it doesn't it is a front axle engagement problem.

There are the two lines that operate the diaphragm on the axle. Facing the truck, the right solenoid (pink & black lines) is activated to disconnect the axle and go back into 2WD. The left solenoid (blue & white lines) lock the axle into 4WD

you'll have to get a vacuum source like a Mighty-Vac hand pump and apply vacuum to the pink and blue lines, one at a time. If one leaks down you'll have to check the line, including the diaphragm, to locate the leak. If vacuum was held, reconnect the bottom half of the line "connector" (black & white lines) to the solenoids and crank the truck. Switching from 2WD to 4WD and back verify each time that there is vacuum on the top nipple of the activated solenoid. If you're in 2WD the right solenoid (pink/black) should be sucking, in 4WD the left (blue/white) should be. If these operate as described then you axle shift fork may be bad. If you're not getting vacuum when you should be, replace the solenoid.

The Vacuum shift motor ( item #10 in the diagram )
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Close up :
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Vacuum shift solenoids

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The other source of the vacuum leak ( if the lines to the solenoid test good ) is the vacuum box behind the battery.

Oct 17, 2010 | 1997 Ford F150 Regular Cab

1 Answer

4x4 does not engage in my 04 ford f150 4x4 new model. tried looking for do it yourself books but no luck


check to see if there is noise coming from either side of the front wheels. jack all four wheels and turn on four wheel drive, if one of the front wheel is not turning then the actuator on that wheel is bad. the actuator is vacuum activated so also check the vacuum hoses go to the wheels.

May 04, 2010 | 2004 Ford F150

1 Answer

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check the electric solenoid on the fly which diverts the vacuum to the front wheel to engage the drive shaft.Usually two solenoids located on the radiator panel.Check for broken vacuum hoses or leak

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Is the four wheel drive activated by vacuum? Check vacuum.

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1 Answer

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